CINXE.COM
Daemon (computing) - Wikipedia
<!DOCTYPE html> <html class="client-nojs skin-theme-clientpref-day mf-expand-sections-clientpref-0 mf-font-size-clientpref-small mw-mf-amc-clientpref-0" lang="en" dir="ltr"> <head> <meta charset="UTF-8"> <title>Daemon (computing) - Wikipedia</title> <script>(function(){var className="client-js skin-theme-clientpref-day mf-expand-sections-clientpref-0 mf-font-size-clientpref-small mw-mf-amc-clientpref-0";var cookie=document.cookie.match(/(?:^|; )enwikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"dmy","wgMonthNames":["","January","February","March","April","May","June","July","August","September","October","November","December"],"wgRequestId":"54d3b309-ff50-42cb-97ee-8f808ce497cf","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"Daemon_(computing)","wgTitle":"Daemon (computing)","wgCurRevisionId":1273344048,"wgRevisionId":1273344048,"wgArticleId": 458986,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgPageViewLanguage":"en","wgPageContentLanguage":"en","wgPageContentModel":"wikitext","wgRelevantPageName":"Daemon_(computing)","wgRelevantArticleId":458986,"wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":false,"wgFlaggedRevsParams":{"tags":{"status":{"levels":1}}},"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"en","pageLanguageDir":"ltr","pageVariantFallbacks":"en"},"wgMFMode":"stable","wgMFAmc":false,"wgMFAmcOutreachActive":false,"wgMFAmcOutreachUserEligible":false,"wgMFLazyLoadImages":true,"wgMFEditNoticesFeatureConflict":false,"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":false,"nearby":true},"wgMFIsSupportedEditRequest":true,"wgMFScriptPath":"", "wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":10000,"wgEditSubmitButtonLabelPublish":true,"wgSectionTranslationMissingLanguages":[{"lang":"ace","autonym":"Acèh","dir":"ltr"},{"lang":"ady","autonym":"адыгабзэ","dir":"ltr"},{"lang":"alt","autonym":"алтай тил","dir":"ltr"},{"lang":"am","autonym":"አማርኛ","dir":"ltr"},{"lang":"ami","autonym":"Pangcah","dir":"ltr"},{"lang":"an","autonym":"aragonés","dir":"ltr"},{"lang":"ang","autonym":"Ænglisc","dir":"ltr"},{"lang":"ann","autonym":"Obolo","dir":"ltr"},{"lang":"anp","autonym":"अंगिका","dir":"ltr"},{"lang":"ary","autonym":"الدارجة","dir":"rtl"},{"lang":"arz","autonym":"مصرى","dir":"rtl"},{"lang":"as","autonym":"অসমীয়া","dir":"ltr"},{"lang":"ast","autonym":"asturianu","dir":"ltr"},{"lang":"av","autonym":"авар","dir":"ltr"},{"lang":"avk","autonym":"Kotava","dir":"ltr"},{"lang":"awa","autonym":"अवधी","dir":"ltr"},{"lang":"ay","autonym":"Aymar aru","dir": "ltr"},{"lang":"azb","autonym":"تۆرکجه","dir":"rtl"},{"lang":"ba","autonym":"башҡортса","dir":"ltr"},{"lang":"ban","autonym":"Basa Bali","dir":"ltr"},{"lang":"bar","autonym":"Boarisch","dir":"ltr"},{"lang":"bbc","autonym":"Batak Toba","dir":"ltr"},{"lang":"bcl","autonym":"Bikol Central","dir":"ltr"},{"lang":"bdr","autonym":"Bajau Sama","dir":"ltr"},{"lang":"be","autonym":"беларуская","dir":"ltr"},{"lang":"bew","autonym":"Betawi","dir":"ltr"},{"lang":"bho","autonym":"भोजपुरी","dir":"ltr"},{"lang":"bi","autonym":"Bislama","dir":"ltr"},{"lang":"bjn","autonym":"Banjar","dir":"ltr"},{"lang":"blk","autonym":"ပအိုဝ်ႏဘာႏသာႏ","dir":"ltr"},{"lang":"bm","autonym":"bamanankan","dir":"ltr"},{"lang":"bn","autonym":"বাংলা","dir":"ltr"},{"lang":"bo","autonym":"བོད་ཡིག","dir":"ltr"},{"lang":"bpy","autonym":"বিষ্ণুপ্রিয়া মণিপুরী","dir":"ltr"},{"lang":"br","autonym": "brezhoneg","dir":"ltr"},{"lang":"btm","autonym":"Batak Mandailing","dir":"ltr"},{"lang":"bug","autonym":"Basa Ugi","dir":"ltr"},{"lang":"cdo","autonym":"閩東語 / Mìng-dĕ̤ng-ngṳ̄","dir":"ltr"},{"lang":"ce","autonym":"нохчийн","dir":"ltr"},{"lang":"ceb","autonym":"Cebuano","dir":"ltr"},{"lang":"ch","autonym":"Chamoru","dir":"ltr"},{"lang":"chr","autonym":"ᏣᎳᎩ","dir":"ltr"},{"lang":"ckb","autonym":"کوردی","dir":"rtl"},{"lang":"co","autonym":"corsu","dir":"ltr"},{"lang":"cr","autonym":"Nēhiyawēwin / ᓀᐦᐃᔭᐍᐏᐣ","dir":"ltr"},{"lang":"crh","autonym":"qırımtatarca","dir":"ltr"},{"lang":"cu","autonym":"словѣньскъ / ⰔⰎⰑⰂⰡⰐⰠⰔⰍⰟ","dir":"ltr"},{"lang":"cy","autonym":"Cymraeg","dir":"ltr"},{"lang":"dag","autonym":"dagbanli","dir":"ltr"},{"lang":"dga","autonym":"Dagaare","dir":"ltr"},{"lang":"din","autonym":"Thuɔŋjäŋ","dir":"ltr"},{"lang":"diq","autonym":"Zazaki","dir":"ltr"},{"lang":"dsb","autonym":"dolnoserbski","dir": "ltr"},{"lang":"dtp","autonym":"Kadazandusun","dir":"ltr"},{"lang":"dv","autonym":"ދިވެހިބަސް","dir":"rtl"},{"lang":"dz","autonym":"ཇོང་ཁ","dir":"ltr"},{"lang":"ee","autonym":"eʋegbe","dir":"ltr"},{"lang":"eml","autonym":"emiliàn e rumagnòl","dir":"ltr"},{"lang":"eo","autonym":"Esperanto","dir":"ltr"},{"lang":"et","autonym":"eesti","dir":"ltr"},{"lang":"fat","autonym":"mfantse","dir":"ltr"},{"lang":"ff","autonym":"Fulfulde","dir":"ltr"},{"lang":"fj","autonym":"Na Vosa Vakaviti","dir":"ltr"},{"lang":"fo","autonym":"føroyskt","dir":"ltr"},{"lang":"fon","autonym":"fɔ̀ngbè","dir":"ltr"},{"lang":"frp","autonym":"arpetan","dir":"ltr"},{"lang":"frr","autonym":"Nordfriisk","dir":"ltr"},{"lang":"fur","autonym":"furlan","dir":"ltr"},{"lang":"fy","autonym":"Frysk","dir":"ltr"},{"lang":"gag","autonym":"Gagauz","dir":"ltr"},{"lang":"gan","autonym":"贛語","dir":"ltr"},{"lang":"gcr","autonym":"kriyòl gwiyannen","dir":"ltr"},{"lang":"gl","autonym":"galego","dir":"ltr"},{ "lang":"glk","autonym":"گیلکی","dir":"rtl"},{"lang":"gn","autonym":"Avañe'ẽ","dir":"ltr"},{"lang":"gom","autonym":"गोंयची कोंकणी / Gõychi Konknni","dir":"ltr"},{"lang":"gor","autonym":"Bahasa Hulontalo","dir":"ltr"},{"lang":"gpe","autonym":"Ghanaian Pidgin","dir":"ltr"},{"lang":"gu","autonym":"ગુજરાતી","dir":"ltr"},{"lang":"guc","autonym":"wayuunaiki","dir":"ltr"},{"lang":"gur","autonym":"farefare","dir":"ltr"},{"lang":"guw","autonym":"gungbe","dir":"ltr"},{"lang":"gv","autonym":"Gaelg","dir":"ltr"},{"lang":"ha","autonym":"Hausa","dir":"ltr"},{"lang":"hak","autonym":"客家語 / Hak-kâ-ngî","dir":"ltr"},{"lang":"haw","autonym":"Hawaiʻi","dir":"ltr"},{"lang":"hi","autonym":"हिन्दी","dir":"ltr"},{"lang":"hif","autonym":"Fiji Hindi","dir":"ltr"},{"lang":"hsb","autonym":"hornjoserbsce","dir":"ltr"},{"lang":"ht","autonym":"Kreyòl ayisyen","dir":"ltr"},{"lang":"hu","autonym":"magyar","dir":"ltr"},{"lang":"hyw","autonym": "Արեւմտահայերէն","dir":"ltr"},{"lang":"ia","autonym":"interlingua","dir":"ltr"},{"lang":"iba","autonym":"Jaku Iban","dir":"ltr"},{"lang":"ie","autonym":"Interlingue","dir":"ltr"},{"lang":"ig","autonym":"Igbo","dir":"ltr"},{"lang":"igl","autonym":"Igala","dir":"ltr"},{"lang":"ilo","autonym":"Ilokano","dir":"ltr"},{"lang":"io","autonym":"Ido","dir":"ltr"},{"lang":"is","autonym":"íslenska","dir":"ltr"},{"lang":"iu","autonym":"ᐃᓄᒃᑎᑐᑦ / inuktitut","dir":"ltr"},{"lang":"jam","autonym":"Patois","dir":"ltr"},{"lang":"jv","autonym":"Jawa","dir":"ltr"},{"lang":"ka","autonym":"ქართული","dir":"ltr"},{"lang":"kaa","autonym":"Qaraqalpaqsha","dir":"ltr"},{"lang":"kab","autonym":"Taqbaylit","dir":"ltr"},{"lang":"kbd","autonym":"адыгэбзэ","dir":"ltr"},{"lang":"kbp","autonym":"Kabɩyɛ","dir":"ltr"},{"lang":"kcg","autonym":"Tyap","dir":"ltr"},{"lang":"kg","autonym":"Kongo","dir":"ltr"},{"lang":"kge","autonym":"Kumoring","dir":"ltr"},{"lang":"ki","autonym" :"Gĩkũyũ","dir":"ltr"},{"lang":"kk","autonym":"қазақша","dir":"ltr"},{"lang":"kl","autonym":"kalaallisut","dir":"ltr"},{"lang":"km","autonym":"ភាសាខ្មែរ","dir":"ltr"},{"lang":"kn","autonym":"ಕನ್ನಡ","dir":"ltr"},{"lang":"knc","autonym":"Yerwa Kanuri","dir":"ltr"},{"lang":"koi","autonym":"перем коми","dir":"ltr"},{"lang":"krc","autonym":"къарачай-малкъар","dir":"ltr"},{"lang":"ks","autonym":"कॉशुर / کٲشُر","dir":"rtl"},{"lang":"ku","autonym":"kurdî","dir":"ltr"},{"lang":"kus","autonym":"Kʋsaal","dir":"ltr"},{"lang":"kv","autonym":"коми","dir":"ltr"},{"lang":"kw","autonym":"kernowek","dir":"ltr"},{"lang":"ky","autonym":"кыргызча","dir":"ltr"},{"lang":"lad","autonym":"Ladino","dir":"ltr"},{"lang":"lb","autonym":"Lëtzebuergesch","dir":"ltr"},{"lang":"lez","autonym":"лезги","dir":"ltr"},{"lang":"lg","autonym":"Luganda","dir":"ltr"},{"lang":"li","autonym":"Limburgs","dir":"ltr"},{"lang":"lij", "autonym":"Ligure","dir":"ltr"},{"lang":"lld","autonym":"Ladin","dir":"ltr"},{"lang":"lmo","autonym":"lombard","dir":"ltr"},{"lang":"ln","autonym":"lingála","dir":"ltr"},{"lang":"lo","autonym":"ລາວ","dir":"ltr"},{"lang":"ltg","autonym":"latgaļu","dir":"ltr"},{"lang":"lv","autonym":"latviešu","dir":"ltr"},{"lang":"mad","autonym":"Madhurâ","dir":"ltr"},{"lang":"mai","autonym":"मैथिली","dir":"ltr"},{"lang":"map-bms","autonym":"Basa Banyumasan","dir":"ltr"},{"lang":"mdf","autonym":"мокшень","dir":"ltr"},{"lang":"mg","autonym":"Malagasy","dir":"ltr"},{"lang":"mhr","autonym":"олык марий","dir":"ltr"},{"lang":"mi","autonym":"Māori","dir":"ltr"},{"lang":"min","autonym":"Minangkabau","dir":"ltr"},{"lang":"mk","autonym":"македонски","dir":"ltr"},{"lang":"mn","autonym":"монгол","dir":"ltr"},{"lang":"mni","autonym":"ꯃꯤꯇꯩ ꯂꯣꯟ","dir":"ltr"},{"lang":"mnw","autonym":"ဘာသာမန်","dir":"ltr"},{"lang":"mos","autonym":"moore" ,"dir":"ltr"},{"lang":"mr","autonym":"मराठी","dir":"ltr"},{"lang":"mrj","autonym":"кырык мары","dir":"ltr"},{"lang":"ms","autonym":"Bahasa Melayu","dir":"ltr"},{"lang":"mt","autonym":"Malti","dir":"ltr"},{"lang":"mwl","autonym":"Mirandés","dir":"ltr"},{"lang":"my","autonym":"မြန်မာဘာသာ","dir":"ltr"},{"lang":"myv","autonym":"эрзянь","dir":"ltr"},{"lang":"mzn","autonym":"مازِرونی","dir":"rtl"},{"lang":"nah","autonym":"Nāhuatl","dir":"ltr"},{"lang":"nan","autonym":"閩南語 / Bân-lâm-gú","dir":"ltr"},{"lang":"nap","autonym":"Napulitano","dir":"ltr"},{"lang":"nb","autonym":"norsk bokmål","dir":"ltr"},{"lang":"nds","autonym":"Plattdüütsch","dir":"ltr"},{"lang":"nds-nl","autonym":"Nedersaksies","dir":"ltr"},{"lang":"ne","autonym":"नेपाली","dir":"ltr"},{"lang":"new","autonym":"नेपाल भाषा","dir":"ltr"},{"lang":"nia","autonym":"Li Niha","dir":"ltr"},{"lang":"nn","autonym":"norsk nynorsk","dir":"ltr"},{ "lang":"nqo","autonym":"ߒߞߏ","dir":"rtl"},{"lang":"nr","autonym":"isiNdebele seSewula","dir":"ltr"},{"lang":"nso","autonym":"Sesotho sa Leboa","dir":"ltr"},{"lang":"ny","autonym":"Chi-Chewa","dir":"ltr"},{"lang":"oc","autonym":"occitan","dir":"ltr"},{"lang":"om","autonym":"Oromoo","dir":"ltr"},{"lang":"or","autonym":"ଓଡ଼ିଆ","dir":"ltr"},{"lang":"os","autonym":"ирон","dir":"ltr"},{"lang":"pa","autonym":"ਪੰਜਾਬੀ","dir":"ltr"},{"lang":"pag","autonym":"Pangasinan","dir":"ltr"},{"lang":"pam","autonym":"Kapampangan","dir":"ltr"},{"lang":"pap","autonym":"Papiamentu","dir":"ltr"},{"lang":"pcd","autonym":"Picard","dir":"ltr"},{"lang":"pcm","autonym":"Naijá","dir":"ltr"},{"lang":"pdc","autonym":"Deitsch","dir":"ltr"},{"lang":"pms","autonym":"Piemontèis","dir":"ltr"},{"lang":"pnb","autonym":"پنجابی","dir":"rtl"},{"lang":"ps","autonym":"پښتو","dir":"rtl"},{"lang":"pwn","autonym":"pinayuanan","dir":"ltr"},{"lang":"rm","autonym":"rumantsch","dir":"ltr"},{ "lang":"rn","autonym":"ikirundi","dir":"ltr"},{"lang":"rsk","autonym":"руски","dir":"ltr"},{"lang":"rue","autonym":"русиньскый","dir":"ltr"},{"lang":"rup","autonym":"armãneashti","dir":"ltr"},{"lang":"rw","autonym":"Ikinyarwanda","dir":"ltr"},{"lang":"sa","autonym":"संस्कृतम्","dir":"ltr"},{"lang":"sah","autonym":"саха тыла","dir":"ltr"},{"lang":"sat","autonym":"ᱥᱟᱱᱛᱟᱲᱤ","dir":"ltr"},{"lang":"sc","autonym":"sardu","dir":"ltr"},{"lang":"scn","autonym":"sicilianu","dir":"ltr"},{"lang":"sco","autonym":"Scots","dir":"ltr"},{"lang":"sd","autonym":"سنڌي","dir":"rtl"},{"lang":"se","autonym":"davvisámegiella","dir":"ltr"},{"lang":"sg","autonym":"Sängö","dir":"ltr"},{"lang":"sgs","autonym":"žemaitėška","dir":"ltr"},{"lang":"sh","autonym":"srpskohrvatski / српскохрватски","dir":"ltr"},{"lang":"shi","autonym":"Taclḥit","dir":"ltr"},{"lang":"shn","autonym":"ၽႃႇသႃႇတႆး ","dir":"ltr"},{"lang":"si", "autonym":"සිංහල","dir":"ltr"},{"lang":"sk","autonym":"slovenčina","dir":"ltr"},{"lang":"skr","autonym":"سرائیکی","dir":"rtl"},{"lang":"sl","autonym":"slovenščina","dir":"ltr"},{"lang":"sm","autonym":"Gagana Samoa","dir":"ltr"},{"lang":"smn","autonym":"anarâškielâ","dir":"ltr"},{"lang":"sn","autonym":"chiShona","dir":"ltr"},{"lang":"so","autonym":"Soomaaliga","dir":"ltr"},{"lang":"sq","autonym":"shqip","dir":"ltr"},{"lang":"srn","autonym":"Sranantongo","dir":"ltr"},{"lang":"ss","autonym":"SiSwati","dir":"ltr"},{"lang":"st","autonym":"Sesotho","dir":"ltr"},{"lang":"stq","autonym":"Seeltersk","dir":"ltr"},{"lang":"su","autonym":"Sunda","dir":"ltr"},{"lang":"sw","autonym":"Kiswahili","dir":"ltr"},{"lang":"szl","autonym":"ślůnski","dir":"ltr"},{"lang":"ta","autonym":"தமிழ்","dir":"ltr"},{"lang":"tay","autonym":"Tayal","dir":"ltr"},{"lang":"tcy","autonym":"ತುಳು","dir":"ltr"},{"lang":"tdd","autonym":"ᥖᥭᥰ ᥖᥬᥲ ᥑᥨᥒᥰ","dir":"ltr"},{ "lang":"te","autonym":"తెలుగు","dir":"ltr"},{"lang":"tet","autonym":"tetun","dir":"ltr"},{"lang":"tg","autonym":"тоҷикӣ","dir":"ltr"},{"lang":"ti","autonym":"ትግርኛ","dir":"ltr"},{"lang":"tig","autonym":"ትግሬ","dir":"ltr"},{"lang":"tk","autonym":"Türkmençe","dir":"ltr"},{"lang":"tl","autonym":"Tagalog","dir":"ltr"},{"lang":"tly","autonym":"tolışi","dir":"ltr"},{"lang":"tn","autonym":"Setswana","dir":"ltr"},{"lang":"to","autonym":"lea faka-Tonga","dir":"ltr"},{"lang":"tpi","autonym":"Tok Pisin","dir":"ltr"},{"lang":"tr","autonym":"Türkçe","dir":"ltr"},{"lang":"trv","autonym":"Seediq","dir":"ltr"},{"lang":"ts","autonym":"Xitsonga","dir":"ltr"},{"lang":"tt","autonym":"татарча / tatarça","dir":"ltr"},{"lang":"tum","autonym":"chiTumbuka","dir":"ltr"},{"lang":"tw","autonym":"Twi","dir":"ltr"},{"lang":"ty","autonym":"reo tahiti","dir":"ltr"},{"lang":"tyv","autonym":"тыва дыл","dir":"ltr"},{"lang":"udm","autonym":"удмурт","dir":"ltr"},{ "lang":"ur","autonym":"اردو","dir":"rtl"},{"lang":"uz","autonym":"oʻzbekcha / ўзбекча","dir":"ltr"},{"lang":"ve","autonym":"Tshivenda","dir":"ltr"},{"lang":"vec","autonym":"vèneto","dir":"ltr"},{"lang":"vep","autonym":"vepsän kel’","dir":"ltr"},{"lang":"vls","autonym":"West-Vlams","dir":"ltr"},{"lang":"vo","autonym":"Volapük","dir":"ltr"},{"lang":"vro","autonym":"võro","dir":"ltr"},{"lang":"wa","autonym":"walon","dir":"ltr"},{"lang":"war","autonym":"Winaray","dir":"ltr"},{"lang":"wo","autonym":"Wolof","dir":"ltr"},{"lang":"wuu","autonym":"吴语","dir":"ltr"},{"lang":"xal","autonym":"хальмг","dir":"ltr"},{"lang":"xh","autonym":"isiXhosa","dir":"ltr"},{"lang":"xmf","autonym":"მარგალური","dir":"ltr"},{"lang":"yi","autonym":"ייִדיש","dir":"rtl"},{"lang":"yo","autonym":"Yorùbá","dir":"ltr"},{"lang":"yue","autonym":"粵語","dir":"ltr"},{"lang":"za","autonym":"Vahcuengh","dir":"ltr"},{"lang":"zgh","autonym": "ⵜⴰⵎⴰⵣⵉⵖⵜ ⵜⴰⵏⴰⵡⴰⵢⵜ","dir":"ltr"},{"lang":"zu","autonym":"isiZulu","dir":"ltr"}],"wgSectionTranslationTargetLanguages":["ace","ady","alt","am","ami","an","ang","ann","anp","ar","ary","arz","as","ast","av","avk","awa","ay","az","azb","ba","ban","bar","bbc","bcl","bdr","be","bew","bg","bho","bi","bjn","blk","bm","bn","bo","bpy","br","bs","btm","bug","ca","cdo","ce","ceb","ch","chr","ckb","co","cr","crh","cs","cu","cy","da","dag","de","dga","din","diq","dsb","dtp","dv","dz","ee","el","eml","eo","es","et","eu","fa","fat","ff","fi","fj","fo","fon","fr","frp","frr","fur","fy","gag","gan","gcr","gl","glk","gn","gom","gor","gpe","gu","guc","gur","guw","gv","ha","hak","haw","he","hi","hif","hr","hsb","ht","hu","hy","hyw","ia","iba","ie","ig","igl","ilo","io","is","it","iu","ja","jam","jv","ka","kaa","kab","kbd","kbp","kcg","kg","kge","ki","kk","kl","km","kn","knc","ko","koi","krc","ks","ku","kus","kv","kw","ky","lad","lb","lez","lg","li","lij","lld","lmo","ln", "lo","lt","ltg","lv","mad","mai","map-bms","mdf","mg","mhr","mi","min","mk","ml","mn","mni","mnw","mos","mr","mrj","ms","mt","mwl","my","myv","mzn","nah","nan","nap","nb","nds","nds-nl","ne","new","nia","nl","nn","nqo","nr","nso","ny","oc","om","or","os","pa","pag","pam","pap","pcd","pcm","pdc","pl","pms","pnb","ps","pt","pwn","qu","rm","rn","ro","rsk","rue","rup","rw","sa","sah","sat","sc","scn","sco","sd","se","sg","sgs","sh","shi","shn","si","sk","skr","sl","sm","smn","sn","so","sq","sr","srn","ss","st","stq","su","sv","sw","szl","ta","tay","tcy","tdd","te","tet","tg","th","ti","tig","tk","tl","tly","tn","to","tpi","tr","trv","ts","tt","tum","tw","ty","tyv","udm","ur","uz","ve","vec","vep","vi","vls","vo","vro","wa","war","wo","wuu","xal","xh","xmf","yi","yo","yue","za","zgh","zh","zu"],"isLanguageSearcherCXEntrypointEnabled":true,"mintEntrypointLanguages":["ace","ast","azb","bcl","bjn","bh","crh","ff","fon","ig","is","ki","ks","lmo","min","sat","ss","tn","vec"],"wgWikibaseItemId": "Q308980","wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false,"wgMinervaPermissions":{"watchable":true,"watch":false},"wgMinervaFeatures":{"beta":false,"donate":true,"mobileOptionsLink":true,"categories":false,"pageIssues":true,"talkAtTop":true,"historyInPageActions":false,"overflowSubmenu":false,"tabsOnSpecials":true,"personalMenu":false,"mainMenuExpanded":false,"echo":true,"nightMode":true},"wgMinervaDownloadNamespaces":[0]};RLSTATE={"ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","ext.cite.styles":"ready","skins.minerva.styles":"ready","skins.minerva.content.styles.images":"ready","mediawiki.hlist":"ready", "skins.minerva.codex.styles":"ready","skins.minerva.icons":"ready","skins.minerva.amc.styles":"ready","ext.wikimediamessages.styles":"ready","mobile.init.styles":"ready","ext.relatedArticles.styles":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["ext.cite.ux-enhancements","mediawiki.page.media","site","mediawiki.page.ready","skins.minerva.scripts","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.gadget.switcher","ext.urlShortener.toolbar","ext.centralauth.centralautologin","ext.popups","mobile.init","ext.echo.centralauth","ext.relatedArticles.readMore.bootstrap","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.cx.eventlogging.campaigns","ext.cx.entrypoints.mffrequentlanguages","ext.cx.entrypoints.languagesearcher.init","mw.externalguidance.init","ext.checkUser.clientHints","ext.growthExperiments.SuggestedEditSession"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=en&modules=ext.cite.styles%7Cext.relatedArticles.styles%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cmediawiki.hlist%7Cmobile.init.styles%7Cskins.minerva.amc.styles%7Cskins.minerva.codex.styles%7Cskins.minerva.content.styles.images%7Cskins.minerva.icons%2Cstyles%7Cwikibase.client.init&only=styles&skin=minerva"> <script async="" src="/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=minerva"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=en&modules=site.styles&only=styles&skin=minerva"> <meta name="generator" content="MediaWiki 1.44.0-wmf.15"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta name="theme-color" content="#eaecf0"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Free_and_open-source-software_display_servers_and_UI_toolkits.svg/1200px-Free_and_open-source-software_display_servers_and_UI_toolkits.svg.png"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="549"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Free_and_open-source-software_display_servers_and_UI_toolkits.svg/800px-Free_and_open-source-software_display_servers_and_UI_toolkits.svg.png"> <meta property="og:image:width" content="800"> <meta property="og:image:height" content="366"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Free_and_open-source-software_display_servers_and_UI_toolkits.svg/640px-Free_and_open-source-software_display_servers_and_UI_toolkits.svg.png"> <meta property="og:image:width" content="640"> <meta property="og:image:height" content="293"> <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes, minimum-scale=0.25, maximum-scale=5.0"> <meta property="og:title" content="Daemon (computing) - Wikipedia"> <meta property="og:type" content="website"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="manifest" href="/w/api.php?action=webapp-manifest"> <link rel="alternate" type="application/x-wiki" title="Edit this page" href="/w/index.php?title=Daemon_(computing)&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikipedia (en)"> <link rel="EditURI" type="application/rsd+xml" href="//en.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://en.wikipedia.org/wiki/Daemon_(computing)"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="login.wikimedia.org"> </head> <body class="mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-Daemon_computing rootpage-Daemon_computing stable issues-group-B skin-minerva action-view skin--responsive mw-mf-amc-disabled mw-mf"><div id="mw-mf-viewport"> <div id="mw-mf-page-center"> <a class="mw-mf-page-center__mask" href="#"></a> <header class="header-container header-chrome"> <div class="minerva-header"> <nav class="navigation-drawer toggle-list view-border-box"> <input type="checkbox" id="main-menu-input" class="toggle-list__checkbox" role="button" aria-haspopup="true" aria-expanded="false" aria-labelledby="mw-mf-main-menu-button"> <label role="button" for="main-menu-input" id="mw-mf-main-menu-button" aria-hidden="true" data-event-name="ui.mainmenu" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet toggle-list__toggle"> <span class="minerva-icon minerva-icon--menu"></span> <span></span> </label> <div id="mw-mf-page-left" class="menu view-border-box"> <ul id="p-navigation" class="toggle-list__list"> <li class="toggle-list-item "> <a class="toggle-list-item__anchor menu__item--home" href="/wiki/Main_Page" data-mw="interface"> <span class="minerva-icon minerva-icon--home"></span> <span class="toggle-list-item__label">Home</span> </a> </li> <li class="toggle-list-item "> <a class="toggle-list-item__anchor menu__item--random" href="/wiki/Special:Random" data-mw="interface"> <span class="minerva-icon minerva-icon--die"></span> <span class="toggle-list-item__label">Random</span> </a> </li> <li class="toggle-list-item skin-minerva-list-item-jsonly"> <a class="toggle-list-item__anchor menu__item--nearby" href="/wiki/Special:Nearby" data-event-name="menu.nearby" data-mw="interface"> <span class="minerva-icon minerva-icon--mapPin"></span> <span class="toggle-list-item__label">Nearby</span> </a> </li> </ul> <ul id="p-personal" class="toggle-list__list"> <li class="toggle-list-item "> <a class="toggle-list-item__anchor mw-list-item menu__item--login" href="/w/index.php?title=Special:UserLogin&returnto=Daemon+%28computing%29" data-event-name="menu.login" data-mw="interface"> <span class="minerva-icon minerva-icon--logIn"></span> <span class="toggle-list-item__label">Log in</span> </a> </li> </ul> <ul id="pt-preferences" class="toggle-list__list"> <li class="toggle-list-item skin-minerva-list-item-jsonly"> <a class="toggle-list-item__anchor menu__item--settings" href="/w/index.php?title=Special:MobileOptions&returnto=Daemon+%28computing%29" data-event-name="menu.settings" data-mw="interface"> <span class="minerva-icon minerva-icon--settings"></span> <span class="toggle-list-item__label">Settings</span> </a> </li> </ul> <ul id="p-donation" class="toggle-list__list"> <li class="toggle-list-item "> <a class="toggle-list-item__anchor menu__item--donate" href="https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=en.wikipedia.org&uselang=en&wmf_key=minerva" data-event-name="menu.donate" data-mw="interface"> <span class="minerva-icon minerva-icon--heart"></span> <span class="toggle-list-item__label">Donate</span> </a> </li> </ul> <ul class="hlist"> <li class="toggle-list-item "> <a class="toggle-list-item__anchor menu__item--about" href="/wiki/Wikipedia:About" data-mw="interface"> <span class="toggle-list-item__label">About Wikipedia</span> </a> </li> <li class="toggle-list-item "> <a class="toggle-list-item__anchor menu__item--disclaimers" href="/wiki/Wikipedia:General_disclaimer" data-mw="interface"> <span class="toggle-list-item__label">Disclaimers</span> </a> </li> </ul> </div> <label class="main-menu-mask" for="main-menu-input"></label> </nav> <div class="branding-box"> <a href="/wiki/Main_Page"> <span><img src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" alt="Wikipedia" width="120" height="18" style="width: 7.5em; height: 1.125em;"/> </span> </a> </div> <form action="/w/index.php" method="get" class="minerva-search-form"> <div class="search-box"> <input type="hidden" name="title" value="Special:Search"/> <input class="search skin-minerva-search-trigger" id="searchInput" type="search" name="search" placeholder="Search Wikipedia" aria-label="Search Wikipedia" autocapitalize="sentences" title="Search Wikipedia [f]" accesskey="f"> <span class="search-box-icon-overlay"><span class="minerva-icon minerva-icon--search"></span> </span> </div> <button id="searchIcon" class="cdx-button cdx-button--size-large cdx-button--icon-only cdx-button--weight-quiet skin-minerva-search-trigger"> <span class="minerva-icon minerva-icon--search"></span> <span>Search</span> </button> </form> <nav class="minerva-user-navigation" aria-label="User navigation"> </nav> </div> </header> <main id="content" class="mw-body"> <div class="banner-container"> <div id="siteNotice"></div> </div> <div class="pre-content heading-holder"> <div class="page-heading"> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Daemon (computing)</span></h1> <div class="tagline"></div> </div> <ul id="p-associated-pages" class="minerva__tab-container"> <li class="minerva__tab selected mw-list-item"> <a class="minerva__tab-text" href="/wiki/Daemon_(computing)" rel="" data-event-name="tabs.main">Article</a> </li> <li class="minerva__tab mw-list-item"> <a class="minerva__tab-text" href="/wiki/Talk:Daemon_(computing)" rel="discussion" data-event-name="tabs.talk">Talk</a> </li> </ul> <nav class="page-actions-menu"> <ul id="p-views" class="page-actions-menu__list"> <li id="language-selector" class="page-actions-menu__list-item"> <a role="button" href="#p-lang" data-mw="interface" data-event-name="menu.languages" title="Language" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet language-selector"> <span class="minerva-icon minerva-icon--language"></span> <span>Language</span> </a> </li> <li id="page-actions-watch" class="page-actions-menu__list-item"> <a role="button" id="ca-watch" href="/w/index.php?title=Special:UserLogin&returnto=Daemon+%28computing%29" data-event-name="menu.watch" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet menu__item--page-actions-watch"> <span class="minerva-icon minerva-icon--star"></span> <span>Watch</span> </a> </li> <li id="page-actions-edit" class="page-actions-menu__list-item"> <a role="button" id="ca-edit" href="/w/index.php?title=Daemon_(computing)&action=edit" data-event-name="menu.edit" data-mw="interface" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet edit-page menu__item--page-actions-edit"> <span class="minerva-icon minerva-icon--edit"></span> <span>Edit</span> </a> </li> </ul> </nav> <!-- version 1.0.2 (change every time you update a partial) --> <div id="mw-content-subtitle"></div> </div> <div id="bodyContent" class="content"> <div id="mw-content-text" class="mw-body-content"><script>function mfTempOpenSection(id){var block=document.getElementById("mf-section-"+id);block.className+=" open-block";block.previousSibling.className+=" open-block";}</script><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><section class="mf-section-0" id="mf-section-0"> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">For spirit in Classical Greek mythology, see <a href="/wiki/Daimon" title="Daimon">Daimon</a>. For broader coverage of the topic, see <a href="/wiki/Server_(computing)" title="Server (computing)">Server (computing)</a>.</div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-More_footnotes_needed plainlinks metadata ambox ambox-style ambox-More_footnotes_needed" role="presentation"><tbody><tr><td class="mbox-text"><div class="mbox-text-span">This article includes a list of <a href="/wiki/Wikipedia:Citing_sources#General_references" title="Wikipedia:Citing sources">general references</a>, but <b>it lacks sufficient corresponding <a href="/wiki/Wikipedia:Citing_sources#Inline_citations" title="Wikipedia:Citing sources">inline citations</a></b>.<span class="hide-when-compact"> Please help to <a href="/wiki/Wikipedia:WikiProject_Reliability" title="Wikipedia:WikiProject Reliability">improve</a> this article by <a href="/wiki/Wikipedia:When_to_cite" title="Wikipedia:When to cite">introducing</a> more precise citations.</span> <span class="date-container"><i>(<span class="date">June 2018</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p>In <a href="/wiki/Computer_multitasking" title="Computer multitasking">multitasking</a> computer <a href="/wiki/Operating_system" title="Operating system">operating systems</a>, a <b>daemon</b> (<span class="rt-commentedText nowrap"><span class="IPA nopopups noexcerpt" lang="en-fonipa"><a href="/wiki/Help:IPA/English" title="Help:IPA/English">/<span style="border-bottom:1px dotted"><span title="/ˈ/: primary stress follows">ˈ</span><span title="'d' in 'dye'">d</span><span title="/iː/: 'ee' in 'fleece'">iː</span><span title="'m' in 'my'">m</span><span title="/ən/: 'on' in 'button'">ən</span></span>/</a></span></span> or <span class="rt-commentedText nowrap"><span class="IPA nopopups noexcerpt" lang="en-fonipa"><a href="/wiki/Help:IPA/English" title="Help:IPA/English">/<span style="border-bottom:1px dotted"><span title="/ˈ/: primary stress follows">ˈ</span><span title="'d' in 'dye'">d</span><span title="/eɪ/: 'a' in 'face'">eɪ</span><span title="'m' in 'my'">m</span><span title="/ən/: 'on' in 'button'">ən</span></span>/</a></span></span>)<sup id="cite_ref-jargon_1-0" class="reference"><a href="#cite_note-jargon-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> is a <a href="/wiki/Computer_program" title="Computer program">computer program</a> that runs as a <a href="/wiki/Background_process" title="Background process">background process</a>, rather than being under the direct control of an interactive user. Traditionally, the process names of a daemon end with the letter <i>d</i>, for clarification that the process is in fact a daemon, and for differentiation between a daemon and a normal computer program. For example, <style data-mw-deduplicate="TemplateStyles:r886049734">.mw-parser-output .monospaced{font-family:monospace,monospace}</style><span class="monospaced"><a href="/wiki/Syslogd" class="mw-redirect" title="Syslogd">syslogd</a></span> is a daemon that implements system logging facility, and <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">sshd</span> is a daemon that serves incoming <a href="/wiki/Secure_Shell" title="Secure Shell">SSH</a> connections. </p><figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Free_and_open-source-software_display_servers_and_UI_toolkits.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Free_and_open-source-software_display_servers_and_UI_toolkits.svg/400px-Free_and_open-source-software_display_servers_and_UI_toolkits.svg.png" decoding="async" width="400" height="183" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Free_and_open-source-software_display_servers_and_UI_toolkits.svg/600px-Free_and_open-source-software_display_servers_and_UI_toolkits.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Free_and_open-source-software_display_servers_and_UI_toolkits.svg/800px-Free_and_open-source-software_display_servers_and_UI_toolkits.svg.png 2x" data-file-width="1573" data-file-height="720"></a><figcaption>Components of some <a href="/wiki/Linux" title="Linux">Linux</a> <a href="/wiki/Desktop_environment" title="Desktop environment">desktop environments</a> that are daemons include <a href="/wiki/D-Bus" title="D-Bus">D-Bus</a>, <a href="/wiki/NetworkManager" title="NetworkManager">NetworkManager</a> (here called <i>unetwork</i>), <a href="/wiki/PulseAudio" title="PulseAudio">PulseAudio</a> (<i>usound</i>), and <a href="/wiki/Avahi_(software)" title="Avahi (software)">Avahi</a>.</figcaption></figure> <p>In a <a href="/wiki/Unix" title="Unix">Unix</a> environment, the <a href="/wiki/Parent_process" title="Parent process">parent process</a> of a daemon is often, but not always, the <a href="/wiki/Init" title="Init">init</a> process. A daemon is usually created either by a process <a href="/wiki/Fork_(operating_system)" class="mw-redirect" title="Fork (operating system)">forking</a> a child process and then immediately exiting, thus causing init to adopt the child process, or by the init process directly launching the daemon. In addition, a daemon launched by forking and exiting typically must perform other operations, such as dissociating the process from any controlling <a href="/wiki/Tty_(Unix)" title="Tty (Unix)">terminal</a> (tty). Such procedures are often implemented in various convenience routines such as <i>daemon(3)</i> in Unix. </p><p>Systems often start daemons at <a href="/wiki/Booting" title="Booting">boot</a> time that will respond to network requests, hardware activity, or other programs by performing some task. Daemons such as <a href="/wiki/Cron" title="Cron">cron</a> may also perform defined tasks at scheduled times. </p> <div id="toc" class="toc" role="navigation" aria-labelledby="mw-toc-heading"><input type="checkbox" role="button" id="toctogglecheckbox" class="toctogglecheckbox" style="display:none"><div class="toctitle" lang="en" dir="ltr"><h2 id="mw-toc-heading">Contents</h2><span class="toctogglespan"><label class="toctogglelabel" for="toctogglecheckbox"></label></span></div> <ul> <li class="toclevel-1 tocsection-1"><a href="#Terminology"><span class="tocnumber">1</span> <span class="toctext">Terminology</span></a></li> <li class="toclevel-1 tocsection-2"><a href="#Implementations"><span class="tocnumber">2</span> <span class="toctext">Implementations</span></a> <ul> <li class="toclevel-2 tocsection-3"><a href="#Unix-like_systems"><span class="tocnumber">2.1</span> <span class="toctext">Unix-like systems</span></a></li> <li class="toclevel-2 tocsection-4"><a href="#MS-DOS"><span class="tocnumber">2.2</span> <span class="toctext">MS-DOS</span></a></li> <li class="toclevel-2 tocsection-5"><a href="#Windows_NT"><span class="tocnumber">2.3</span> <span class="toctext">Windows NT</span></a></li> <li class="toclevel-2 tocsection-6"><a href="#Classic_Mac_OS_and_macOS"><span class="tocnumber">2.4</span> <span class="toctext">Classic Mac OS and macOS</span></a></li> </ul> </li> <li class="toclevel-1 tocsection-7"><a href="#See_also"><span class="tocnumber">3</span> <span class="toctext">See also</span></a></li> <li class="toclevel-1 tocsection-8"><a href="#References"><span class="tocnumber">4</span> <span class="toctext">References</span></a></li> <li class="toclevel-1 tocsection-9"><a href="#External_links"><span class="tocnumber">5</span> <span class="toctext">External links</span></a></li> </ul> </div> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(1)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="Terminology">Terminology</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Daemon_(computing)&action=edit&section=1" title="Edit section: Terminology" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-1 collapsible-block" id="mf-section-1"> <p>The term was coined by the programmers at <a href="/wiki/Project_MAC" class="mw-redirect" title="Project MAC">MIT's Project MAC</a>. According to <a href="/wiki/Fernando_J._Corbat%C3%B3" title="Fernando J. Corbató">Fernando J. Corbató</a>, who worked on <a href="/wiki/MIT_Computer_Science_and_Artificial_Intelligence_Laboratory#Project_MAC" title="MIT Computer Science and Artificial Intelligence Laboratory">Project MAC</a> around 1963, his team was the first to use the term daemon, inspired by <a href="/wiki/Maxwell%27s_demon" title="Maxwell's demon">Maxwell's demon</a>, an imaginary agent in physics and <a href="/wiki/Thermodynamics" title="Thermodynamics">thermodynamics</a> that helped to sort molecules, stating, "We fancifully began to use the word daemon to describe background processes that worked tirelessly to perform system chores".<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Unix" title="Unix">Unix</a> systems inherited this terminology. Maxwell's demon is consistent with Greek mythology's interpretation of a <a href="/wiki/Daemon_(mythology)" class="mw-redirect" title="Daemon (mythology)">daemon</a> as a supernatural being working in the background. </p><p>In the general sense, daemon is an older form of the word "demon", from the <a href="/wiki/Greek_language" title="Greek language">Greek</a> δαίμων. In the <i>Unix System Administration Handbook</i> <a href="/wiki/Evi_Nemeth" title="Evi Nemeth">Evi Nemeth</a> states the following about daemons:<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <style data-mw-deduplicate="TemplateStyles:r1244412712">.mw-parser-output .templatequote{overflow:hidden;margin:1em 0;padding:0 32px}.mw-parser-output .templatequotecite{line-height:1.5em;text-align:left;margin-top:0}@media(min-width:500px){.mw-parser-output .templatequotecite{padding-left:1.6em}}</style><blockquote class="templatequote"><p> Many people equate the word "daemon" with the word "demon", implying some kind of <a href="/wiki/Satanism" title="Satanism">satanic</a> connection between UNIX and the <a href="/wiki/Underworld" title="Underworld">underworld</a>. This is an egregious misunderstanding. "Daemon" is actually a much older form of "demon"; daemons have no particular bias towards good or evil, but rather serve to help define a person's character or personality. The <a href="/wiki/Ancient_Greece" title="Ancient Greece">ancient Greeks</a>' concept of a "personal daemon" was similar to the modern concept of a "guardian angel"—<i>eudaemonia</i> is the state of being helped or protected by a kindly spirit. As a rule, UNIX systems seem to be infested with both daemons and demons.</p></blockquote> <p>In modern usage in the context of computer software, the word <i>daemon</i> is pronounced <span class="rt-commentedText nowrap"><span class="IPA nopopups noexcerpt" lang="en-fonipa"><a href="/wiki/Help:IPA/English" title="Help:IPA/English">/<span style="border-bottom:1px dotted"><span title="/ˈ/: primary stress follows">ˈ</span><span title="'d' in 'dye'">d</span><span title="/iː/: 'ee' in 'fleece'">iː</span><span title="'m' in 'my'">m</span><span title="/ən/: 'on' in 'button'">ən</span></span>/</a></span></span> <a href="/wiki/Help:Pronunciation_respelling_key" title="Help:Pronunciation respelling key"><i title="English pronunciation respelling"><span style="font-size:90%">DEE</span>-mən</i></a> or <span class="rt-commentedText nowrap"><span class="IPA nopopups noexcerpt" lang="en-fonipa"><a href="/wiki/Help:IPA/English" title="Help:IPA/English">/<span style="border-bottom:1px dotted"><span title="/ˈ/: primary stress follows">ˈ</span><span title="'d' in 'dye'">d</span><span title="/eɪ/: 'a' in 'face'">eɪ</span><span title="'m' in 'my'">m</span><span title="/ən/: 'on' in 'button'">ən</span></span>/</a></span></span> <a href="/wiki/Help:Pronunciation_respelling_key" title="Help:Pronunciation respelling key"><i title="English pronunciation respelling"><span style="font-size:90%">DAY</span>-mən</i></a>.<sup id="cite_ref-jargon_1-1" class="reference"><a href="#cite_note-jargon-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Alternative terms for <i>daemon</i> are <i><a href="/wiki/Windows_service" title="Windows service">service</a></i> (used in Windows, from Windows NT onwards, and later also in Linux), <i>started task</i> (IBM <a href="/wiki/Z/OS" title="Z/OS">z/OS</a>),<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> and <i>ghost job</i> (XDS <a href="/wiki/Universal_Time-Sharing_System" title="Universal Time-Sharing System">UTS</a>). Sometimes the more general term <i>server</i> or <i>server process</i> is used, particularly for daemons that operate as part of <a href="/wiki/Client%E2%80%93server_model" title="Client–server model">client-server systems</a>.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>After the term was adopted for computer use, it was rationalized as a <a href="/wiki/Backronym" title="Backronym">backronym</a> for Disk And Execution MONitor.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-jargon_1-2" class="reference"><a href="#cite_note-jargon-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Daemons that connect to a computer network are examples of <a href="/wiki/Network_service" title="Network service">network services</a>. </p> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(2)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="Implementations">Implementations</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Daemon_(computing)&action=edit&section=2" title="Edit section: Implementations" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-2 collapsible-block" id="mf-section-2"> <div class="mw-heading mw-heading3"><h3 id="Unix-like_systems">Unix-like systems</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Daemon_(computing)&action=edit&section=3" title="Edit section: Unix-like systems" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>In a strictly technical sense, a Unix-like system process is a daemon when its parent process terminates and the daemon is assigned the <a href="/wiki/Init" title="Init">init</a> process (process number 1) as its parent process and has no controlling terminal. However, more generally, a daemon may be any background process, whether a child of the init process or not. </p><p>On a Unix-like system, the common method for a process to become a daemon, when the process is started from the <a href="/wiki/Command_line" class="mw-redirect" title="Command line">command line</a> or from a startup script such as an <a href="/wiki/Init" title="Init">init</a> script or a <a href="/wiki/SystemStarter" title="SystemStarter">SystemStarter</a> script, involves: </p> <ul><li>Optionally removing unnecessary variables from environment.</li> <li>Executing as a <a href="/wiki/Background_(computer_software)" class="mw-redirect" title="Background (computer software)">background task</a> by <a href="/wiki/Fork_(system_call)" title="Fork (system call)">forking</a> and <a href="/wiki/Exit_(system_call)" title="Exit (system call)">exiting</a> (in the parent "half" of the fork). This allows daemon's parent (shell or startup process) to receive exit notification and continue its normal execution.</li> <li>Detaching from the invoking session, usually accomplished by a single operation, <code>setsid()</code>: <ul><li>Dissociating from the controlling <a href="/wiki/Tty_(Unix)" title="Tty (Unix)">tty</a>.</li> <li>Creating a new session and becoming the session leader of that session.</li> <li>Becoming a <a href="/wiki/Process_group" title="Process group">process group</a> leader.</li></ul></li> <li>If the daemon wants to ensure that it will not acquire a new controlling tty even by accident (which happens when a session leader without a controlling tty opens a free tty), it may fork and exit again. This means that it is no longer a session leader in the new session, and cannot acquire a controlling tty.</li> <li>Setting the <a href="/wiki/Root_directory" title="Root directory">root directory</a> (<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">/</span>) as the current <a href="/wiki/Working_directory" title="Working directory">working directory</a> so that the process does not keep any directory in use that may be on a <a href="/wiki/Mount_(computing)" title="Mount (computing)">mounted</a> file system (allowing it to be unmounted).</li> <li>Changing the <a href="/wiki/Umask" title="Umask">umask</a> to 0 to allow <code>open()</code>, <code>creat()</code>, and other operating system calls to provide their own permission masks and not to depend on the umask of the caller.</li> <li>Redirecting <a href="/wiki/File_descriptor" title="File descriptor">file descriptors</a> 0, 1 and 2 for the <a href="/wiki/Standard_streams" title="Standard streams">standard streams</a> (<a href="/wiki/Stdin" class="mw-redirect" title="Stdin">stdin</a>, <a href="/wiki/Stdout" class="mw-redirect" title="Stdout">stdout</a> and <a href="/wiki/Stderr" class="mw-redirect" title="Stderr">stderr</a>) to <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">/dev/null</span> or a <a href="/wiki/Computer_data_logging" class="mw-redirect" title="Computer data logging">logfile</a>, and closing all the other file descriptors inherited from the parent process.</li></ul> <p>If the process is started by a <a href="/wiki/Super-server" title="Super-server">super-server</a> daemon, such as <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced"><a href="/wiki/Inetd" title="Inetd">inetd</a></span>, <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced"><a href="/wiki/Launchd" title="Launchd">launchd</a></span>, or <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced"><a href="/wiki/Systemd" title="Systemd">systemd</a></span>, the super-server daemon will perform those functions for the process,<sup id="cite_ref-inetd_7-0" class="reference"><a href="#cite_note-inetd-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-systemd_service_9-0" class="reference"><a href="#cite_note-systemd_service-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> except for old-style daemons not converted to run under <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">systemd</span> and specified as <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">Type=forking</span><sup id="cite_ref-systemd_service_9-1" class="reference"><a href="#cite_note-systemd_service-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> and "multi-threaded" datagram servers under <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">inetd</span>.<sup id="cite_ref-inetd_7-1" class="reference"><a href="#cite_note-inetd-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="MS-DOS">MS-DOS</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Daemon_(computing)&action=edit&section=4" title="Edit section: MS-DOS" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>In the <a href="/wiki/DOS" title="DOS">Microsoft DOS</a> environment, daemon-like programs were implemented as <a href="/wiki/Terminate-and-stay-resident_program" title="Terminate-and-stay-resident program">terminate-and-stay-resident programs</a> (TSR). </p> <div class="mw-heading mw-heading3"><h3 id="Windows_NT">Windows NT</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Daemon_(computing)&action=edit&section=5" title="Edit section: Windows NT" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>On <a href="/wiki/Microsoft_Windows_NT" class="mw-redirect" title="Microsoft Windows NT">Microsoft Windows NT</a> systems, programs called <a href="/wiki/Windows_service" title="Windows service">Windows services</a> perform the functions of daemons. They run as processes, usually do not interact with the monitor, keyboard, and mouse, and may be launched by the operating system at boot time. In <a href="/wiki/Windows_2000" title="Windows 2000">Windows 2000</a> and later versions, Windows services are configured and manually started and stopped using the <a href="/wiki/Control_Panel_(Windows)" title="Control Panel (Windows)">Control Panel</a>, a dedicated control/configuration program, the Service Controller component of the <a href="/wiki/Service_Control_Manager" title="Service Control Manager">Service Control Manager</a> (<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">sc</span> command), the <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">net start</span> and <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">net stop</span> commands or the <a href="/wiki/PowerShell" title="PowerShell">PowerShell</a> scripting system. </p><p>However, any Windows application can perform the role of a daemon, not just a service, and some Windows daemons have the option of running as a normal process. </p> <div class="mw-heading mw-heading3"><h3 id="Classic_Mac_OS_and_macOS">Classic Mac OS and macOS</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Daemon_(computing)&action=edit&section=6" title="Edit section: Classic Mac OS and macOS" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>On the <a href="/wiki/Classic_Mac_OS" title="Classic Mac OS">classic Mac OS</a>, optional features and services were provided by files loaded at startup time that patched the operating system; these were known as <a href="/wiki/Extension_(Mac_OS)" title="Extension (Mac OS)">system extensions</a> and <a href="/wiki/Control_panel_(Mac_OS)" class="mw-redirect" title="Control panel (Mac OS)">control panels</a>. Later versions of classic Mac OS augmented these with fully fledged <a href="/wiki/Extension_(Mac_OS)#Faceless_background_applications" title="Extension (Mac OS)">faceless background applications</a>: regular applications that ran in the background. To the user, these were still described as regular system extensions. </p><p><a href="/wiki/MacOS" title="MacOS">macOS</a>, which is a <a href="/wiki/Unix" title="Unix">Unix</a> system, uses daemons but uses the term "services" to designate software that performs functions selected from the <a href="/wiki/Services_menu#macOS" title="Services menu">Services menu</a>, rather than using that term for daemons, as Windows does. </p> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(3)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="See_also">See also</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Daemon_(computing)&action=edit&section=7" title="Edit section: See also" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-3 collapsible-block" id="mf-section-3"> <style data-mw-deduplicate="TemplateStyles:r1184024115">.mw-parser-output .div-col{margin-top:0.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:1px solid #aaa}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column}</style><div class="div-col" style="column-width: 20em;"> <ul><li><a href="/wiki/List_of_computer_term_etymologies" title="List of computer term etymologies">List of computer term etymologies</a></li> <li><a href="/wiki/List_of_Unix_daemons" title="List of Unix daemons">List of Unix daemons</a></li> <li><a href="/wiki/Service_wrapper" title="Service wrapper">Service wrapper</a></li> <li><a href="/wiki/Software_bot" title="Software bot">Software bot</a></li> <li><a href="/wiki/User_space" class="mw-redirect" title="User space">User space</a></li> <li><a href="/wiki/Web_service" title="Web service">Web service</a></li> <li><a href="/wiki/Windows_service" title="Windows service">Windows service</a></li></ul> </div> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(4)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="References">References</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Daemon_(computing)&action=edit&section=8" title="Edit section: References" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-4 collapsible-block" id="mf-section-4"> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-jargon-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-jargon_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-jargon_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-jargon_1-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFEric_S._Raymond" class="citation web cs1"><a href="/wiki/Eric_S._Raymond" title="Eric S. Raymond">Eric S. Raymond</a>. <a rel="nofollow" class="external text" href="http://catb.org/~esr/jargon/html/D/daemon.html">"daemon"</a>. <i><a href="/wiki/Jargon_File" title="Jargon File">The Jargon File</a></i><span class="reference-accessdate">. Retrieved <span class="nowrap">2008-10-22</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=The+Jargon+File&rft.atitle=daemon&rft.au=Eric+S.+Raymond&rft_id=http%3A%2F%2Fcatb.org%2F~esr%2Fjargon%2Fhtml%2FD%2Fdaemon.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADaemon+%28computing%29" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://ei.cs.vt.edu/~history/Daemon.html">"The Origin of the word Daemon"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=The+Origin+of+the+word+Daemon&rft_id=http%3A%2F%2Fei.cs.vt.edu%2F~history%2FDaemon.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADaemon+%28computing%29" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.freebsd.org/copyright/daemon.html">"The BSD Daemon"</a>. Freebsd.org<span class="reference-accessdate">. Retrieved <span class="nowrap">2008-11-15</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=The+BSD+Daemon&rft.pub=Freebsd.org&rft_id=http%3A%2F%2Fwww.freebsd.org%2Fcopyright%2Fdaemon.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADaemon+%28computing%29" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.ibm.com/docs/en/zos-basic-skills?topic=glossary-zos-terms-abbreviations">"Glossary of z/OS terms and abbreviations"</a>. <i>IBM Documentation</i>. <a href="/wiki/IBM" title="IBM">IBM</a>. 31 January 2006.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=IBM+Documentation&rft.atitle=Glossary+of+z%2FOS+terms+and+abbreviations&rft.date=2006-01-31&rft_id=https%3A%2F%2Fwww.ibm.com%2Fdocs%2Fen%2Fzos-basic-skills%3Ftopic%3Dglossary-zos-terms-abbreviations&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADaemon+%28computing%29" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.ssh.com/academy/ssh/sshd">"sshd: OpenSSH server process | SSH Academy"</a>. <i>www.ssh.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2023-12-04</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=www.ssh.com&rft.atitle=sshd%3A+OpenSSH+server+process+%7C+SSH+Academy&rft_id=https%3A%2F%2Fwww.ssh.com%2Facademy%2Fssh%2Fsshd&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADaemon+%28computing%29" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.linfo.org/daemon.html">"Daemon Definition"</a>. <i>www.linfo.org</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=www.linfo.org&rft.atitle=Daemon+Definition&rft_id=http%3A%2F%2Fwww.linfo.org%2Fdaemon.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADaemon+%28computing%29" class="Z3988"></span></span> </li> <li id="cite_note-inetd-7"><span class="mw-cite-backlink">^ <a href="#cite_ref-inetd_7-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-inetd_7-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><span class="plainlinksneverexpand"><code><a rel="nofollow" class="external text" href="https://www.freebsd.org/cgi/man.cgi?query=inetd&sektion=8">inetd(8)</a></code></span> – <a href="/wiki/FreeBSD" title="FreeBSD">FreeBSD</a> System Manager's <a href="/wiki/Man_page" title="Man page">Manual</a></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><span class="plainlinksneverexpand"><code><a rel="nofollow" class="external text" href="https://keith.github.io/xcode-man-pages/launchd.plist.5.html">launchd.plist(5)</a></code></span> – <a href="/wiki/Darwin_(operating_system)" title="Darwin (operating system)">Darwin</a> and <a href="/wiki/MacOS" title="MacOS">macOS</a> File Formats <a href="/wiki/Man_page" title="Man page">Manual</a></span> </li> <li id="cite_note-systemd_service-9"><span class="mw-cite-backlink">^ <a href="#cite_ref-systemd_service_9-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-systemd_service_9-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.freedesktop.org/software/systemd/man/systemd.service.html">"systemd.service"</a>. freedesktop.org<span class="reference-accessdate">. Retrieved <span class="nowrap">August 25,</span> 2012</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=systemd.service&rft.pub=freedesktop.org&rft_id=http%3A%2F%2Fwww.freedesktop.org%2Fsoftware%2Fsystemd%2Fman%2Fsystemd.service.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADaemon+%28computing%29" class="Z3988"></span></span> </li> </ol></div></div> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(5)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="External_links">External links</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Daemon_(computing)&action=edit&section=9" title="Edit section: External links" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-5 collapsible-block" id="mf-section-5"> <ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20191030233137/http://www.enderunix.org/docs/eng/daemon.php">Unix Daemon Server Programming</a> at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a> (archived 2019-10-30)</li></ul> <!-- NewPP limit report Parsed by mw‐web.codfw.canary‐58b75df47c‐gvc5x Cached time: 20250210045242 Cache expiry: 2592000 Reduced expiry: false Complications: [vary‐revision‐sha1, show‐toc] CPU time usage: 0.272 seconds Real time usage: 0.365 seconds Preprocessor visited node count: 1532/1000000 Post‐expand include size: 24463/2097152 bytes Template argument size: 2810/2097152 bytes Highest expansion depth: 13/100 Expensive parser function count: 4/500 Unstrip recursion depth: 1/20 Unstrip post‐expand size: 30138/5000000 bytes Lua time usage: 0.146/10.000 seconds Lua memory usage: 5713738/52428800 bytes Number of Wikibase entities loaded: 0/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 316.082 1 -total 39.36% 124.407 1 Template:Reflist 31.10% 98.297 7 Template:Cite_web 20.09% 63.513 1 Template:Short_description 15.83% 50.027 1 Template:More_footnotes 13.75% 43.457 1 Template:Ambox 12.70% 40.139 2 Template:Pagetype 6.21% 19.632 1 Template:For-multi 5.72% 18.085 1 Template:Hatnote 4.34% 13.711 4 Template:IPAc-en --> <!-- Saved in parser cache with key enwiki:pcache:458986:|#|:idhash:canonical and timestamp 20250210045242 and revision id 1273344048. Rendering was triggered because: page-view --> </section></div> <!-- MobileFormatter took 0.010 seconds --><!--esi <esi:include src="/esitest-fa8a495983347898/content" /> --><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=mobile&type=1x1&usesul3=0" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Daemon_(computing)&oldid=1273344048">https://en.wikipedia.org/w/index.php?title=Daemon_(computing)&oldid=1273344048</a>"</div></div> </div> <div class="post-content" id="page-secondary-actions"> </div> </main> <footer class="mw-footer minerva-footer" role="contentinfo"> <a class="last-modified-bar" href="/w/index.php?title=Daemon_(computing)&action=history"> <div class="post-content last-modified-bar__content"> <span class="minerva-icon minerva-icon-size-medium minerva-icon--modified-history"></span> <span class="last-modified-bar__text modified-enhancement" data-user-name="Underdevelopedprefrontalcortex" data-user-gender="unknown" data-timestamp="1738446764"> <span>Last edited on 1 February 2025, at 21:52</span> </span> <span class="minerva-icon minerva-icon-size-small minerva-icon--expand"></span> </div> </a> <div class="post-content footer-content"> <div id='mw-data-after-content'> <div class="read-more-container"></div> </div> <div id="p-lang"> <h4>Languages</h4> <section> <ul id="p-variants" class="minerva-languages"></ul> <ul class="minerva-languages"><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A8%D8%B1%D9%86%D8%A7%D9%85%D8%AC_%D8%AE%D9%81%D9%8A" title="برنامج خفي – Arabic" lang="ar" hreflang="ar" data-title="برنامج خفي" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/G%C3%B6zl%C9%99dici_proqram" title="Gözlədici proqram – Azerbaijani" lang="az" hreflang="az" data-title="Gözlədici proqram" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%94%D0%B5%D0%BC%D0%BE%D0%BD_(%D0%B8%D0%BD%D1%84%D0%BE%D1%80%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B0)" title="Демон (информатика) – Bulgarian" lang="bg" hreflang="bg" data-title="Демон (информатика)" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Daemon" title="Daemon – Bosnian" lang="bs" hreflang="bs" data-title="Daemon" data-language-autonym="Bosanski" data-language-local-name="Bosnian" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Dimoni_(programa)" title="Dimoni (programa) – Catalan" lang="ca" hreflang="ca" data-title="Dimoni (programa)" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/D%C3%A9mon_(software)" title="Démon (software) – Czech" lang="cs" hreflang="cs" data-title="Démon (software)" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Daemon" title="Daemon – Danish" lang="da" hreflang="da" data-title="Daemon" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Daemon" title="Daemon – German" lang="de" hreflang="de" data-title="Daemon" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%94%CE%B1%CE%AF%CE%BC%CF%89%CE%BD_(%CF%80%CE%BB%CE%B7%CF%81%CE%BF%CF%86%CE%BF%CF%81%CE%B9%CE%BA%CE%AE)" title="Δαίμων (πληροφορική) – Greek" lang="el" hreflang="el" data-title="Δαίμων (πληροφορική)" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Daemon_(inform%C3%A1tica)" title="Daemon (informática) – Spanish" lang="es" hreflang="es" data-title="Daemon (informática)" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Daemon_(informatika)" title="Daemon (informatika) – Basque" lang="eu" hreflang="eu" data-title="Daemon (informatika)" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AF%DB%8C%D9%85%D9%86" title="دیمن – Persian" lang="fa" hreflang="fa" data-title="دیمن" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Daemon_(informatique)" title="Daemon (informatique) – French" lang="fr" hreflang="fr" data-title="Daemon (informatique)" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%8D%B0%EB%AA%AC_(%EC%BB%B4%ED%93%A8%ED%8C%85)" title="데몬 (컴퓨팅) – Korean" lang="ko" hreflang="ko" data-title="데몬 (컴퓨팅)" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%B4%D5%A5%D5%B4%D5%B8%D5%B6_(%D5%AE%D6%80%D5%A1%D5%A3%D5%AB%D6%80)" title="Դեմոն (ծրագիր) – Armenian" lang="hy" hreflang="hy" data-title="Դեմոն (ծրագիր)" data-language-autonym="Հայերեն" data-language-local-name="Armenian" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Daemon" title="Daemon – Croatian" lang="hr" hreflang="hr" data-title="Daemon" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Daemon" title="Daemon – Indonesian" lang="id" hreflang="id" data-title="Daemon" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Demone_(informatica)" title="Demone (informatica) – Italian" lang="it" hreflang="it" data-title="Demone (informatica)" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/Daemon" title="Daemon – Hebrew" lang="he" hreflang="he" data-title="Daemon" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Daemon_(informatica)" title="Daemon (informatica) – Latin" lang="la" hreflang="la" data-title="Daemon (informatica)" data-language-autonym="Latina" data-language-local-name="Latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Daemon" title="Daemon – Lithuanian" lang="lt" hreflang="lt" data-title="Daemon" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%A1%E0%B5%80%E0%B4%AE%E0%B5%BB_(%E0%B4%95%E0%B4%AE%E0%B5%8D%E0%B4%AA%E0%B5%8D%E0%B4%AF%E0%B5%82%E0%B4%9F%E0%B5%8D%E0%B4%9F%E0%B5%BC_%E0%B4%B8%E0%B5%8B%E0%B4%AB%E0%B5%8D%E0%B4%B1%E0%B5%8D%E0%B4%B1%E0%B5%8D%E2%80%8C%E0%B4%B5%E0%B5%86%E0%B4%AF%E0%B5%BC)" title="ഡീമൻ (കമ്പ്യൂട്ടർ സോഫ്റ്റ്വെയർ) – Malayalam" lang="ml" hreflang="ml" data-title="ഡീമൻ (കമ്പ്യൂട്ടർ സോഫ്റ്റ്വെയർ)" data-language-autonym="മലയാളം" data-language-local-name="Malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Daemon_(Unix)" title="Daemon (Unix) – Dutch" lang="nl" hreflang="nl" data-title="Daemon (Unix)" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%83%87%E3%83%BC%E3%83%A2%E3%83%B3_(%E3%82%BD%E3%83%95%E3%83%88%E3%82%A6%E3%82%A7%E3%82%A2)" title="デーモン (ソフトウェア) – Japanese" lang="ja" hreflang="ja" data-title="デーモン (ソフトウェア)" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Daemon_(programvare)" title="Daemon (programvare) – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Daemon (programvare)" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Demon_(informatyka)" title="Demon (informatyka) – Polish" lang="pl" hreflang="pl" data-title="Demon (informatyka)" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Daemon_(computa%C3%A7%C3%A3o)" title="Daemon (computação) – Portuguese" lang="pt" hreflang="pt" data-title="Daemon (computação)" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Daemon" title="Daemon – Romanian" lang="ro" hreflang="ro" data-title="Daemon" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wikipedia.org/wiki/Daemon_(anta%C3%B1iqiy)" title="Daemon (antañiqiy) – Quechua" lang="qu" hreflang="qu" data-title="Daemon (antañiqiy)" data-language-autonym="Runa Simi" data-language-local-name="Quechua" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%94%D0%B5%D0%BC%D0%BE%D0%BD_(%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0)" title="Демон (программа) – Russian" lang="ru" hreflang="ru" data-title="Демон (программа)" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Daemon_(computer_software)" title="Daemon (computer software) – Simple English" lang="en-simple" hreflang="en-simple" data-title="Daemon (computer software)" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/Daemon" title="Daemon – Serbian" lang="sr" hreflang="sr" data-title="Daemon" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Daemon" title="Daemon – Finnish" lang="fi" hreflang="fi" data-title="Daemon" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Daemon" title="Daemon – Swedish" lang="sv" hreflang="sv" data-title="Daemon" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%84%E0%B8%94%E0%B8%A1%E0%B8%AD%E0%B8%99_(%E0%B8%8B%E0%B8%AD%E0%B8%9F%E0%B8%95%E0%B9%8C%E0%B9%81%E0%B8%A7%E0%B8%A3%E0%B9%8C)" title="ไดมอน (ซอฟต์แวร์) – Thai" lang="th" hreflang="th" data-title="ไดมอน (ซอฟต์แวร์)" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%94%D0%B5%D0%BC%D0%BE%D0%BD_(%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%B0)" title="Демон (програма) – Ukrainian" lang="uk" hreflang="uk" data-title="Демон (програма)" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Tr%C3%ACnh_n%E1%BB%81n" title="Trình nền – Vietnamese" lang="vi" hreflang="vi" data-title="Trình nền" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnamese" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%AE%88%E6%8A%A4%E8%BF%9B%E7%A8%8B" title="守护进程 – Chinese" lang="zh" hreflang="zh" data-title="守护进程" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li></ul> </section> </div> <div class="minerva-footer-logo"><img src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" alt="Wikipedia" width="120" height="18" style="width: 7.5em; height: 1.125em;"/> </div> <ul id="footer-info" class="footer-info hlist hlist-separated"> <li id="footer-info-lastmod"> This page was last edited on 1 February 2025, at 21:52<span class="anonymous-show"> (UTC)</span>.</li> <li id="footer-info-copyright">Content is available under <a class="external" rel="nofollow" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">CC BY-SA 4.0</a> unless otherwise noted.</li> </ul> <ul id="footer-places" class="footer-places hlist hlist-separated"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Privacy policy</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:About">About Wikipedia</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:General_disclaimer">Disclaimers</a></li> <li id="footer-places-contact"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us">Contact Wikipedia</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Code of Conduct</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Developers</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/en.wikipedia.org">Statistics</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Cookie statement</a></li> <li id="footer-places-terms-use"><a href="https://foundation.m.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use">Terms of Use</a></li> <li id="footer-places-desktop-toggle"><a id="mw-mf-display-toggle" href="//en.wikipedia.org/w/index.php?title=Daemon_(computing)&mobileaction=toggle_view_desktop" data-event-name="switch_to_desktop">Desktop</a></li> </ul> </div> </footer> </div> </div> <div class="mw-notification-area" data-mw="interface"></div> <!-- v:8.3.1 --> <script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-5558bc8b6-lh5l8","wgBackendResponseTime":144,"wgPageParseReport":{"limitreport":{"cputime":"0.272","walltime":"0.365","ppvisitednodes":{"value":1532,"limit":1000000},"postexpandincludesize":{"value":24463,"limit":2097152},"templateargumentsize":{"value":2810,"limit":2097152},"expansiondepth":{"value":13,"limit":100},"expensivefunctioncount":{"value":4,"limit":500},"unstrip-depth":{"value":1,"limit":20},"unstrip-size":{"value":30138,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 316.082 1 -total"," 39.36% 124.407 1 Template:Reflist"," 31.10% 98.297 7 Template:Cite_web"," 20.09% 63.513 1 Template:Short_description"," 15.83% 50.027 1 Template:More_footnotes"," 13.75% 43.457 1 Template:Ambox"," 12.70% 40.139 2 Template:Pagetype"," 6.21% 19.632 1 Template:For-multi"," 5.72% 18.085 1 Template:Hatnote"," 4.34% 13.711 4 Template:IPAc-en"]},"scribunto":{"limitreport-timeusage":{"value":"0.146","limit":"10.000"},"limitreport-memusage":{"value":5713738,"limit":52428800}},"cachereport":{"origin":"mw-web.codfw.canary-58b75df47c-gvc5x","timestamp":"20250210045242","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"Daemon (computing)","url":"https:\/\/en.wikipedia.org\/wiki\/Daemon_(computing)","sameAs":"http:\/\/www.wikidata.org\/entity\/Q308980","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q308980","author":{"@type":"Organization","name":"Contributors to Wikimedia projects"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2004-02-07T17:52:08Z","dateModified":"2025-02-01T21:52:44Z","image":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/7\/7b\/Free_and_open-source-software_display_servers_and_UI_toolkits.svg","headline":"computer program that runs persistently as a background process to provide a service"}</script><script>(window.NORLQ=window.NORLQ||[]).push(function(){var ns,i,p,img;ns=document.getElementsByTagName('noscript');for(i=0;i<ns.length;i++){p=ns[i].nextSibling;if(p&&p.className&&p.className.indexOf('lazy-image-placeholder')>-1){img=document.createElement('img');img.setAttribute('src',p.getAttribute('data-src'));img.setAttribute('width',p.getAttribute('data-width'));img.setAttribute('height',p.getAttribute('data-height'));img.setAttribute('alt',p.getAttribute('data-alt'));p.parentNode.replaceChild(img,p);}}});</script> </body> </html>