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class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Gunea"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Edukiak" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Edukiak</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">mugitu alboko barrara</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">ezkutatu</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">⇑ Gora</div> </a> </li> <li id="toc-Eraso_prozedurak" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Eraso_prozedurak"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Eraso prozedurak</span> </div> </a> <ul id="toc-Eraso_prozedurak-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Eraso_Motak" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Eraso_Motak"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Eraso Motak</span> </div> </a> <button aria-controls="toc-Eraso_Motak-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Erakutsi/ezkutatu Eraso Motak azpiatal</span> </button> <ul id="toc-Eraso_Motak-sublist" class="vector-toc-list"> <li id="toc-SYN_Gainezkatzea_(SYN_Flood)" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#SYN_Gainezkatzea_(SYN_Flood)"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>SYN Gainezkatzea (SYN Flood)</span> </div> </a> <ul id="toc-SYN_Gainezkatzea_(SYN_Flood)-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-ICMP_Gainezkatzea_(ICMP_Flood)" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#ICMP_Gainezkatzea_(ICMP_Flood)"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>ICMP Gainezkatzea (ICMP Flood)</span> </div> </a> <ul id="toc-ICMP_Gainezkatzea_(ICMP_Flood)-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-UDP_Gainezkatzea_(UDP_Flood)" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#UDP_Gainezkatzea_(UDP_Flood)"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3</span> <span>UDP Gainezkatzea (UDP Flood)</span> </div> </a> <ul id="toc-UDP_Gainezkatzea_(UDP_Flood)-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-SMURF" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#SMURF"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.4</span> <span>SMURF</span> </div> </a> <ul id="toc-SMURF-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-LAND_erasoa_(LAND_attack)" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#LAND_erasoa_(LAND_attack)"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.5</span> <span>LAND erasoa (LAND attack)</span> </div> </a> <ul id="toc-LAND_erasoa_(LAND_attack)-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Teardrop_attack" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Teardrop_attack"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.6</span> <span>Teardrop attack</span> </div> </a> <ul id="toc-Teardrop_attack-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Aplikazio_mailako_uholdeak" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Aplikazio_mailako_uholdeak"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.7</span> <span>Aplikazio mailako uholdeak</span> </div> </a> <ul id="toc-Aplikazio_mailako_uholdeak-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Nuke-ak" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Nuke-ak"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.8</span> <span>Nuke-ak</span> </div> </a> <ul id="toc-Nuke-ak-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Prebentzioa_eta_erantzuna" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Prebentzioa_eta_erantzuna"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Prebentzioa eta erantzuna</span> </div> </a> <ul id="toc-Prebentzioa_eta_erantzuna-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Legeria" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Legeria"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Legeria</span> </div> </a> <ul id="toc-Legeria-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Ikus,_gainera" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Ikus,_gainera"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Ikus, gainera</span> </div> </a> <ul id="toc-Ikus,_gainera-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Kanpo_estekak" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Kanpo_estekak"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Kanpo estekak</span> </div> </a> <ul id="toc-Kanpo_estekak-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Edukiak" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="Eduki-taula" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Eduki taularen ikusgarritasuna aldatu" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Eduki taularen ikusgarritasuna aldatu</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Zerbitzu ukapenaren eraso</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Joan beste hizkuntza batean idatzitako artikulu batera. 57 hizkuntzatan eskuragarri." > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-57" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">57 hizkuntza</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%87%D8%AC%D9%85%D8%A7%D8%AA_%D8%A7%D9%84%D8%AD%D8%B1%D9%85%D8%A7%D9%86_%D9%85%D9%86_%D8%A7%D9%84%D8%AE%D8%AF%D9%85%D8%A7%D8%AA" title="هجمات الحرمان من الخدمات – arabiera" lang="ar" hreflang="ar" data-title="هجمات الحرمان من الخدمات" data-language-autonym="العربية" data-language-local-name="arabiera" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Ataque_de_denegaci%C3%B3n_de_serviciu" title="Ataque de denegación de serviciu – asturiera" lang="ast" hreflang="ast" data-title="Ataque de denegación de serviciu" data-language-autonym="Asturianu" data-language-local-name="asturiera" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/DoS-h%C3%BCcum" title="DoS-hücum – azerbaijanera" lang="az" hreflang="az" data-title="DoS-hücum" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaijanera" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bar mw-list-item"><a href="https://bar.wikipedia.org/wiki/Attacke_zua_Deanstblockade" title="Attacke zua Deanstblockade – Bavarian" lang="bar" hreflang="bar" data-title="Attacke zua Deanstblockade" data-language-autonym="Boarisch" data-language-local-name="Bavarian" class="interlanguage-link-target"><span>Boarisch</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%90%D1%82%D0%B0%D0%BA%D0%B0_%D0%B7%D0%B0_%D0%BE%D1%82%D0%BA%D0%B0%D0%B7_%D0%BD%D0%B0_%D1%83%D1%81%D0%BB%D1%83%D0%B3%D0%B0" title="Атака за отказ на услуга – bulgariera" lang="bg" hreflang="bg" data-title="Атака за отказ на услуга" data-language-autonym="Български" data-language-local-name="bulgariera" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%A1%E0%A6%BF%E0%A6%A8%E0%A6%BE%E0%A6%87%E0%A6%AF%E0%A6%BC%E0%A6%BE%E0%A6%B2_%E0%A6%85%E0%A6%AC_%E0%A6%B8%E0%A6%BE%E0%A6%B0%E0%A7%8D%E0%A6%AD%E0%A6%BF%E0%A6%B8" title="ডিনাইয়াল অব সার্ভিস – bengalera" lang="bn" hreflang="bn" data-title="ডিনাইয়াল অব সার্ভিস" data-language-autonym="বাংলা" data-language-local-name="bengalera" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Atac_de_denegaci%C3%B3_de_servei" title="Atac de denegació de servei – katalana" lang="ca" hreflang="ca" data-title="Atac de denegació de servei" data-language-autonym="Català" data-language-local-name="katalana" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%DA%95%DB%8E%DA%AF%DB%95%DA%AF%D8%B1%D8%AA%D9%86_%D9%84%DB%95_%D8%AE%D8%B2%D9%85%DB%95%D8%AA%DA%AF%D9%88%D8%B2%D8%A7%D8%B1%DB%8C" title="ڕێگەگرتن لە خزمەتگوزاری – erdialdeko kurduera" lang="ckb" hreflang="ckb" data-title="ڕێگەگرتن لە خزمەتگوزاری" data-language-autonym="کوردی" data-language-local-name="erdialdeko kurduera" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Denial_of_service" title="Denial of service – txekiera" lang="cs" hreflang="cs" data-title="Denial of service" data-language-autonym="Čeština" data-language-local-name="txekiera" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Denial_of_Service" title="Denial of Service – alemana" lang="de" hreflang="de" data-title="Denial of Service" data-language-autonym="Deutsch" data-language-local-name="alemana" 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%95%CF%80%CE%B9%CE%B8%CE%AD%CF%83%CE%B5%CE%B9%CF%82_%CE%AC%CF%81%CE%BD%CE%B7%CF%83%CE%B7%CF%82_%CF%85%CF%80%CE%B7%CF%81%CE%B5%CF%83%CE%B9%CF%8E%CE%BD" title="Επιθέσεις άρνησης υπηρεσιών – greziera" lang="el" hreflang="el" data-title="Επιθέσεις άρνησης υπηρεσιών" data-language-autonym="Ελληνικά" data-language-local-name="greziera" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Denial-of-service_attack" title="Denial-of-service attack – ingelesa" lang="en" hreflang="en" data-title="Denial-of-service attack" data-language-autonym="English" data-language-local-name="ingelesa" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Ataque_de_denegaci%C3%B3n_de_servicio" title="Ataque de denegación de servicio – gaztelania" lang="es" hreflang="es" data-title="Ataque de denegación de servicio" data-language-autonym="Español" data-language-local-name="gaztelania" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Teenuset%C3%B5kestusr%C3%BCnne" title="Teenusetõkestusrünne – estoniera" lang="et" hreflang="et" data-title="Teenusetõkestusrünne" data-language-autonym="Eesti" data-language-local-name="estoniera" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AD%D9%85%D9%84%D9%87_%D9%85%D8%AD%D8%B1%D9%88%D9%85%E2%80%8C%D8%B3%D8%A7%D8%B2%DB%8C_%D8%A7%D8%B2_%D8%B3%D8%B1%D9%88%DB%8C%D8%B3" title="حمله محروم‌سازی از سرویس – persiera" lang="fa" hreflang="fa" data-title="حمله محروم‌سازی از سرویس" data-language-autonym="فارسی" data-language-local-name="persiera" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Palvelunestohy%C3%B6kk%C3%A4ys" title="Palvelunestohyökkäys – finlandiera" lang="fi" hreflang="fi" data-title="Palvelunestohyökkäys" data-language-autonym="Suomi" data-language-local-name="finlandiera" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Attaque_par_d%C3%A9ni_de_service" title="Attaque par déni de service – frantsesa" lang="fr" hreflang="fr" data-title="Attaque par déni de service" data-language-autonym="Français" data-language-local-name="frantsesa" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Ionsa%C3%AD_di%C3%BAltaithe_seirbh%C3%ADse" title="Ionsaí diúltaithe seirbhíse – irlandera" lang="ga" hreflang="ga" data-title="Ionsaí diúltaithe seirbhíse" data-language-autonym="Gaeilge" data-language-local-name="irlandera" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Ataque_de_denegaci%C3%B3n_de_servizo" title="Ataque de denegación de servizo – galiziera" lang="gl" hreflang="gl" data-title="Ataque de denegación de servizo" data-language-autonym="Galego" data-language-local-name="galiziera" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%94%D7%AA%D7%A7%D7%A4%D7%AA_%D7%9E%D7%A0%D7%99%D7%A2%D7%AA_%D7%A9%D7%99%D7%A8%D7%95%D7%AA" title="התקפת מניעת שירות – hebreera" lang="he" hreflang="he" data-title="התקפת מניעת שירות" data-language-autonym="עברית" data-language-local-name="hebreera" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Napad_uskra%C4%87ivanjem_resursa" title="Napad uskraćivanjem resursa – kroaziera" lang="hr" hreflang="hr" data-title="Napad uskraćivanjem resursa" data-language-autonym="Hrvatski" data-language-local-name="kroaziera" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Szolg%C3%A1ltat%C3%A1smegtagad%C3%A1ssal_j%C3%A1r%C3%B3_t%C3%A1mad%C3%A1s" title="Szolgáltatásmegtagadással járó támadás – hungariera" lang="hu" hreflang="hu" data-title="Szolgáltatásmegtagadással járó támadás" data-language-autonym="Magyar" data-language-local-name="hungariera" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/DoS" title="DoS – armeniera" lang="hy" hreflang="hy" data-title="DoS" data-language-autonym="Հայերեն" data-language-local-name="armeniera" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Serangan_kegagalan_layanan" title="Serangan kegagalan layanan – indonesiera" lang="id" hreflang="id" data-title="Serangan kegagalan layanan" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiera" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/DoS-%C3%A1r%C3%A1s" title="DoS-árás – islandiera" lang="is" hreflang="is" data-title="DoS-árás" data-language-autonym="Íslenska" data-language-local-name="islandiera" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Denial_of_service" title="Denial of service – italiera" lang="it" hreflang="it" data-title="Denial of service" data-language-autonym="Italiano" data-language-local-name="italiera" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/DoS%E6%94%BB%E6%92%83" title="DoS攻撃 – japoniera" lang="ja" hreflang="ja" data-title="DoS攻撃" data-language-autonym="日本語" data-language-local-name="japoniera" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/Denial-of-service_attack" title="Denial-of-service attack – georgiera" lang="ka" hreflang="ka" data-title="Denial-of-service attack" data-language-autonym="ქართული" data-language-local-name="georgiera" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%84%9C%EB%B9%84%EC%8A%A4_%EA%B1%B0%EB%B6%80_%EA%B3%B5%EA%B2%A9" title="서비스 거부 공격 – koreera" lang="ko" hreflang="ko" data-title="서비스 거부 공격" data-language-autonym="한국어" data-language-local-name="koreera" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Denial_of_Service" title="Denial of Service – lombardiera" lang="lmo" hreflang="lmo" data-title="Denial of Service" data-language-autonym="Lombard" data-language-local-name="lombardiera" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Paskirstyta_paslaugos_trikdymo_ataka" title="Paskirstyta paslaugos trikdymo ataka – lituaniera" lang="lt" hreflang="lt" data-title="Paskirstyta paslaugos trikdymo ataka" data-language-autonym="Lietuvių" data-language-local-name="lituaniera" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Pakalpojumatteices_uzbrukums" title="Pakalpojumatteices uzbrukums – letoniera" lang="lv" hreflang="lv" data-title="Pakalpojumatteices uzbrukums" data-language-autonym="Latviešu" data-language-local-name="letoniera" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%A1%E0%B4%BF%E0%B4%A8%E0%B4%AF%E0%B4%BF%E0%B5%BD-%E0%B4%93%E0%B4%AB%E0%B5%8D-%E0%B4%B8%E0%B5%BC%E0%B4%B5%E0%B5%80%E0%B4%B8%E0%B5%8D_%E0%B4%85%E0%B4%B1%E0%B5%8D%E0%B4%B1%E0%B4%BE%E0%B4%95%E0%B5%8D%E0%B4%95%E0%B5%8D%E2%80%8C" title="ഡിനയിൽ-ഓഫ്-സർവീസ് അറ്റാക്ക്‌ – malabarera" lang="ml" hreflang="ml" data-title="ഡിനയിൽ-ഓഫ്-സർവീസ് അറ്റാക്ക്‌" data-language-autonym="മലയാളം" data-language-local-name="malabarera" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/DoS_%D1%85%D0%B0%D0%BB%D0%B4%D0%BB%D0%B0%D0%B3%D0%B0" title="DoS халдлага – mongoliera" lang="mn" hreflang="mn" data-title="DoS халдлага" data-language-autonym="Монгол" data-language-local-name="mongoliera" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Serangan_penafian-perkhidmatan" title="Serangan penafian-perkhidmatan – malaysiera" lang="ms" hreflang="ms" data-title="Serangan penafian-perkhidmatan" data-language-autonym="Bahasa Melayu" data-language-local-name="malaysiera" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/Denial-of-service_attack" title="Denial-of-service attack – birmaniera" lang="my" hreflang="my" data-title="Denial-of-service attack" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="birmaniera" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Denial_of_service" title="Denial of service – nederlandera" lang="nl" hreflang="nl" data-title="Denial of service" data-language-autonym="Nederlands" data-language-local-name="nederlandera" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Tjenestenektangrep" title="Tjenestenektangrep – bokmål (norvegiera)" lang="nb" hreflang="nb" data-title="Tjenestenektangrep" data-language-autonym="Norsk bokmål" data-language-local-name="bokmål (norvegiera)" 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/Blokada_us%C5%82ug" title="Blokada usług – poloniera" lang="pl" hreflang="pl" data-title="Blokada usług" data-language-autonym="Polski" data-language-local-name="poloniera" 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/Ataque_de_nega%C3%A7%C3%A3o_de_servi%C3%A7o" title="Ataque de negação de serviço – portugesa" lang="pt" hreflang="pt" data-title="Ataque de negação de serviço" data-language-autonym="Português" data-language-local-name="portugesa" 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/DoS" title="DoS – errumaniera" lang="ro" hreflang="ro" data-title="DoS" data-language-autonym="Română" data-language-local-name="errumaniera" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/DoS-%D0%B0%D1%82%D0%B0%D0%BA%D0%B0" title="DoS-атака – errusiera" lang="ru" hreflang="ru" data-title="DoS-атака" data-language-autonym="Русский" data-language-local-name="errusiera" 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/Denial-of-Service_attack" title="Denial-of-Service attack – Simple English" lang="en-simple" hreflang="en-simple" data-title="Denial-of-Service attack" 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-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Napad_za_zavrnitev_storitve" title="Napad za zavrnitev storitve – esloveniera" lang="sl" hreflang="sl" data-title="Napad za zavrnitev storitve" data-language-autonym="Slovenščina" data-language-local-name="esloveniera" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Sulmet_DoS" title="Sulmet DoS – albaniera" lang="sq" hreflang="sq" data-title="Sulmet DoS" data-language-autonym="Shqip" data-language-local-name="albaniera" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/DoS_%D0%BD%D0%B0%D0%BF%D0%B0%D0%B4" title="DoS напад – serbiera" lang="sr" hreflang="sr" data-title="DoS напад" data-language-autonym="Српски / srpski" data-language-local-name="serbiera" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Denial-of-service" title="Denial-of-service – suediera" lang="sv" hreflang="sv" data-title="Denial-of-service" data-language-autonym="Svenska" data-language-local-name="suediera" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%9A%E0%AF%87%E0%AE%B5%E0%AF%88_%E0%AE%AE%E0%AE%B1%E0%AF%81%E0%AE%AA%E0%AF%8D%E0%AE%AA%E0%AF%81%E0%AE%A4%E0%AF%8D_%E0%AE%A4%E0%AE%BE%E0%AE%95%E0%AF%8D%E0%AE%95%E0%AF%81%E0%AE%A4%E0%AE%B2%E0%AF%8D" title="சேவை மறுப்புத் தாக்குதல் – tamilera" lang="ta" hreflang="ta" data-title="சேவை மறுப்புத் தாக்குதல்" data-language-autonym="தமிழ்" data-language-local-name="tamilera" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-tg mw-list-item"><a href="https://tg.wikipedia.org/wiki/%D2%B2%D0%B0%D0%BC%D0%BB%D0%B0%D0%B8_%D0%B1%D0%B0%D0%BD%D0%B4%D0%BE%D0%B2%D0%B0%D1%80%D0%B8%D0%B8_%D1%85%D0%B0%D0%B4%D0%B0%D0%BC%D0%BE%D1%82" title="Ҳамлаи бандоварии хадамот – tajikera" lang="tg" hreflang="tg" data-title="Ҳамлаи бандоварии хадамот" data-language-autonym="Тоҷикӣ" data-language-local-name="tajikera" class="interlanguage-link-target"><span>Тоҷикӣ</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B9%82%E0%B8%88%E0%B8%A1%E0%B8%95%E0%B8%B5%E0%B9%82%E0%B8%94%E0%B8%A2%E0%B8%9B%E0%B8%8F%E0%B8%B4%E0%B9%80%E0%B8%AA%E0%B8%98%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B9%83%E0%B8%AB%E0%B9%89%E0%B8%9A%E0%B8%A3%E0%B8%B4%E0%B8%81%E0%B8%B2%E0%B8%A3" title="การโจมตีโดยปฏิเสธการให้บริการ – thailandiera" lang="th" hreflang="th" data-title="การโจมตีโดยปฏิเสธการให้บริการ" data-language-autonym="ไทย" data-language-local-name="thailandiera" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Servis_d%C4%B1%C5%9F%C4%B1_b%C4%B1rakma_sald%C4%B1r%C4%B1s%C4%B1" title="Servis dışı bırakma saldırısı – turkiera" lang="tr" hreflang="tr" data-title="Servis dışı bırakma saldırısı" data-language-autonym="Türkçe" data-language-local-name="turkiera" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/DoS-%D0%B0%D1%82%D0%B0%D0%BA%D0%B0" title="DoS-атака – ukrainera" lang="uk" hreflang="uk" data-title="DoS-атака" data-language-autonym="Українська" data-language-local-name="ukrainera" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/DoS_hujum" title="DoS hujum – uzbekera" lang="uz" hreflang="uz" data-title="DoS hujum" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbekera" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/T%E1%BA%A5n_c%C3%B4ng_t%E1%BB%AB_ch%E1%BB%91i_d%E1%BB%8Bch_v%E1%BB%A5" title="Tấn công từ chối dịch vụ – vietnamera" lang="vi" hreflang="vi" data-title="Tấn công từ chối dịch vụ" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamera" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E6%8B%92%E7%BB%9D%E6%9C%8D%E5%8A%A1%E6%94%BB%E5%87%BB" title="拒绝服务攻击 – wu txinera" lang="wuu" hreflang="wuu" data-title="拒绝服务攻击" data-language-autonym="吴语" data-language-local-name="wu txinera" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E9%98%BB%E6%96%B7%E6%9C%8D%E5%8B%99%E6%94%BB%E6%93%8A" title="阻斷服務攻擊 – txinera" lang="zh" hreflang="zh" data-title="阻斷服務攻擊" data-language-autonym="中文" data-language-local-name="txinera" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E9%98%BB%E6%96%B7%E6%9C%8D%E5%8B%99%E6%94%BB%E6%93%8A" title="阻斷服務攻擊 – kantonera" lang="yue" hreflang="yue" data-title="阻斷服務攻擊" data-language-autonym="粵語" data-language-local-name="kantonera" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q131406#sitelinks-wikipedia" title="Aldatu hizkuntzen arteko loturak" class="wbc-editpage">Aldatu loturak</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Izen-tarteak"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Zerbitzu_ukapenaren_eraso" title="Eduki orrialdea ikusi [c]" accesskey="c"><span>Artikulua</span></a></li><li id="ca-talk" 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<div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="eu" dir="ltr"><p>Segurtasun informatikoan <b>zerbitzuaren ukatze erasoa</b> edota <b>DoS</b> deiturikoa (<a href="/wiki/Ingeles" title="Ingeles">ingeleseko</a> <i><b>D</b>enial <b>o</b>f <b>S</b>ervice</i> izenetik), <a href="/wiki/Ordenagailu" title="Ordenagailu">konputagailu</a> edo <a href="/wiki/Konputagailu-sare" title="Konputagailu-sare">konputagailu-sare</a> sistema bati egindako erasoa da, non benetako erabiltzaileek zerbitzuak edo errekurtsoak ezin dituzten erabili. </p><p>Oro har, biktimaren sarearen <a href="/wiki/Banda_zabalera" title="Banda zabalera">banda zabaleraren</a> edo sistemaren errekurtso konputazionalen gainkargak sarera duen lotura galtzea eragiten du. Informazio isuri handiko <a href="/wiki/Ataka_(informatika)" title="Ataka (informatika)">ataken</a> gainkargaz sortzen da; zerbitzaria gainkargatu eta ematen ari den zerbitzua eten egiten da. Horregatik esaten zaio "ukapena"; Beraz, zerbitzariak ezingo die erabiltzaileen eskakizunei erantzun. Teknika hau <a href="/w/index.php?title=Craker&action=edit&redlink=1" class="new" title="Craker (sortu gabe)">Crakerrek</a> erabiltzen dute zerbitzutik at uzteko jomugan dituzten zerbitzariak. </p><p>Dos erasoaren talde-erabilera zerbitzuaren ukatze eraso antolatua, edo DDoS (ingeleseko <i>Distributed Denial of Service </i>izenetik hartua) deiturikoa da. Eraso horren funtsa konexioa gune desberdinetatik egitean eta informazio fluxu jasangaitza sortzean datza. </p><p>DdoS-ak egiteko modurik arruntena botnetaren bitartez egitea da. Teknika hau ziber-erasorik erabiliena eta eragingarriena da. Ziber-eraso hauek internet-politikaren aurkakoak dira, eta herrialde gehienetan legea urratzea dakar eraso hauetakoren bat egiteak. Tresna hau askotan erabili izan da jakiteko noiz bihurtzen den ordenagailua ezegonkor eta noiz arte eskaintzen dituen zerbitzuak behar bezala. Horrela, administrariek zerbitzariak jasan dezakeen trafiko bolumenaren edukiera jakin dezakete eta, bidenabar, aparatu bakoitzak duen benetako ahalmena ezagutu dezakete. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Eraso_prozedurak">Eraso prozedurak</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&veaction=edit&section=1" title="Aldatu atal hau: «Eraso prozedurak»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&action=edit&section=1" title="Edit section's source code: Eraso prozedurak"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>“Zerbitzua ukapenaren” erasoak erabiltzaileen legezko erabilpena eragozten du sarearen zerbitzua erabiltzean. Erasoa modu askotara eman daiteke. Baina denek dute zerbait komunean: TCP/IP protokoloa darabilte beren nahia lortzeko. DoS erasoa modu askotara burutu daiteke. Nahiz eta, gehienbat honetan datzan: </p> <dl><dd><ul><li>konputagailu baliabideen xahutzea, hala nola, banda zabalarena, diskoaren espazioa, edo prozesatzailearen denbora.</li> <li>Konfigurazioaren informazio aldaketa. Adibidez, ibilbideen informazioaren bideraketa.</li> <li>Egoeraren informazio-aldaketa , TCP (TCP reset) saioen etenaldiak medio</li> <li>Sarearen osagarri fisikoen etetea.</li> <li>Zerbitzu baten erabiltzaileen eta biktimaren arteko komunikazioak zailtzea edo egoki komunikatzea eragoztea.</li></ul></dd></dl> <div class="mw-heading mw-heading2"><h2 id="Eraso_Motak">Eraso Motak</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&veaction=edit&section=2" title="Aldatu atal hau: «Eraso Motak»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&action=edit&section=2" title="Edit section's source code: Eraso Motak"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="SYN_Gainezkatzea_(SYN_Flood)"><span id="SYN_Gainezkatzea_.28SYN_Flood.29"></span>SYN Gainezkatzea (SYN Flood)</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&veaction=edit&section=3" title="Aldatu atal hau: «SYN Gainezkatzea (SYN Flood)»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&action=edit&section=3" title="Edit section's source code: SYN Gainezkatzea (SYN Flood)"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>TCP/IParen oinarriak</b> Makina bat beste makina batekin TCP/IP bitartez komunikatzen denean benetako eskaerarekin batera beste zenbait datu bidaltzen ditu. Datu hauek eskaeraren goiburua osatzen dute. Goiburuaren barruan Flag izeneko seinale batzuk daude. Seinale hauei (flag-ei) esker konexioari hasiera eman, itxi, eskaera bat presazkoa den begiratu, konexioa berrabiatu, etab.,egin daiteke. Flag-ak eskaeraren (bezeroaren) zein erantzunaren (zerbitzariaren) eskaeretan sartzen dira. Ikus dezagun, nolakoa den TCP/IP arteko truke estandarra: </p> <dl><dd><ul><li>1 Konexioa ezarri: Bezeroak SYN Flaga bidaltzen du, zerbitzariak konexioa onartzen badu, SYN/ACKak batekin erantzun beharko lioke, ondoren bezeroak ACK Flag-arekin erantzungo dio.</li></ul></dd></dl> <p>1-Bezeroa --------SYN-----> 2-zerbitzaria </p><p>4-Bezeroa <-----SYN/ACK---- 3-zerbitzaria </p><p>5-Bezeroa --------ACK-----> 6-zerbitzaria </p> <dl><dd><ul><li>2 Konexioa berrabiarazi: Akatsen bat izanez gero edo bidaltze-paketeen galera Flags RSTaren bidalketa ezartzen da.</li></ul></dd></dl> <p>1-Bezeroa -------Reset-----> 2-zerbitzaria </p><p>4-Bezeroa <----Reset/ACK---- 3-zerbitzaria </p><p>5-Bezeroa --------ACK------> 6-zerbitzaria </p><p><br /> SYN gainezkatzeak TCP/SYN (goiburuan Flags SYN daramaten eskaera batzuek) paketeen isuria bidaltzen du, askotan jatorrizko helbidea faltsifikatuarekin. Jasotako pakete bakoitza konexio eskaera gisa hartzen du helmugan, horrela, zerbitzariari konexio ahaleginak sortzen dira TCP/SYN-ACK paketearekin erantzuten dira eta horiek TCP/ACK (3 aukera TCP konexioaren ezarpen-prozesuaren zatia) paketearen erantzunaren zain geratzen dira. Hala ere, IP helbidea faltsua denez edo IP helbideak konexiorik eskatu ez duenez, ez da inoiz erantzunik iristen. Konexio ahalegin hauek zerbitzariaren baliabide asko xahutzen dituzte, eta asko mugatzen da zerbitzariak egin ditzaken lotura kopurua. Ondorioz, eskaera errealei erantzuteko zerbitzariaren ahalmena asko murriztuko da. </p><p>SYN cookie-ek SYN gainezkatzearen aurkako babesa eskaintzen duen mekanismoa dute. Cookie horiek, lotura bakoitza hasieratzean, host helburuaren baliabide erreserba ezabatzen dute. </p> <div class="mw-heading mw-heading3"><h3 id="ICMP_Gainezkatzea_(ICMP_Flood)"><span id="ICMP_Gainezkatzea_.28ICMP_Flood.29"></span>ICMP Gainezkatzea (ICMP Flood)</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&veaction=edit&section=4" title="Aldatu atal hau: «ICMP Gainezkatzea (ICMP Flood)»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&action=edit&section=4" title="Edit section's source code: ICMP Gainezkatzea (ICMP Flood)"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Zerbitzu-ukapen eraso teknika honen helburua biktimaren banda-zabalera agortzea da. Echo request ICMP (ping) pakete astun asko bidaltzean datza erasoa. Horrela, ICMP Echo reply (pong) paketeak sortu beharko ditu biktimak eta gehiegizko lan-kargaren ondorioz, sarea eta biktima baliabide faltan izango dira. Erasotzailearen eta erasotuaren arteko prozesatze-ahalmen erlazioaren baitan egongo da gainkargaren maila.Hau da, erasotzailearen ahalmena askoz handiagoa bada, biktimak ezin izango du sortutako trafikoa jasan. </p> <div class="mw-heading mw-heading3"><h3 id="UDP_Gainezkatzea_(UDP_Flood)"><span id="UDP_Gainezkatzea_.28UDP_Flood.29"></span>UDP Gainezkatzea (UDP Flood)</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&veaction=edit&section=5" title="Aldatu atal hau: «UDP Gainezkatzea (UDP Flood)»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&action=edit&section=5" title="Edit section's source code: UDP Gainezkatzea (UDP Flood)"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Eraso hau hautaturiko biktimaren aurka UDP pakete kopuru handiak bidaltzean datza. UDP protokoloa konexiorik gabekoa denez, eraso horiek IP spoofing-a izaten dute lagungarri. Eraso horiek echo deia exekutatzen duten makinen aurka egitea ohikoa da. Erasoaren ondorioz, tamaina handiko echo mezuak sortzen dira. </p> <div class="mw-heading mw-heading3"><h3 id="SMURF">SMURF</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&veaction=edit&section=6" title="Aldatu atal hau: «SMURF»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&action=edit&section=6" title="Edit section's source code: SMURF"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Eraso hau ICMP gainezkatzearen aldaera suntsitzaileagoa da, ICMP gainezkatzea baino ondorio larriagoak dituelako. Smurf erasoan parte-hartzaileak 3 dira: Erasotzailea, bitartekaria eta erasotua Hala ere, erasotuaz gain bitartekaria ere biktima izan daiteke. Izan ere, erasotuaren ondorio berdinak pairatu baititzazke. Erasotzaileak "echo request" (ping) motako ICMP paketeak broadcasteko IP helbide batera bidaltzen ditu. Jatorrizko helbide gisa biktimarena erabiltzen du (Spoofing-a). Lotura duten makinek “Echo reply” erabiliko dute erantzuteko eta biktimaren helbidera erantzungo dute. Konexioa duten makina guztiek erantzuna bidaliko dutenez, erasoaren tamaina handiagoa izango da eta ondorioak ere larriagoak izango dira. Izan ere, erantzun horietako bakoitzak biktimaren baliabideak oztopatu nahi ditu eta sistemaren funtzionamendu arrunta eragoztea lortzen du. Horregatik, esan ohi da ICMP-ren ahaide suntsitzailea dela. </p> <div class="mw-heading mw-heading3"><h3 id="LAND_erasoa_(LAND_attack)"><span id="LAND_erasoa_.28LAND_attack.29"></span>LAND erasoa (LAND attack)</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&veaction=edit&section=7" title="Aldatu atal hau: «LAND erasoa (LAND attack)»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&action=edit&section=7" title="Edit section's source code: LAND erasoa (LAND attack)"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Teardrop_attack">Teardrop attack</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&veaction=edit&section=8" title="Aldatu atal hau: «Teardrop attack»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&action=edit&section=8" title="Edit section's source code: Teardrop attack"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Aplikazio_mailako_uholdeak">Aplikazio mailako uholdeak</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&veaction=edit&section=9" title="Aldatu atal hau: «Aplikazio mailako uholdeak»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&action=edit&section=9" title="Edit section's source code: Aplikazio mailako uholdeak"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Nuke-ak">Nuke-ak</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&veaction=edit&section=10" title="Aldatu atal hau: «Nuke-ak»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&action=edit&section=10" title="Edit section's source code: Nuke-ak"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading2"><h2 id="Prebentzioa_eta_erantzuna">Prebentzioa eta erantzuna</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&veaction=edit&section=11" title="Aldatu atal hau: «Prebentzioa eta erantzuna»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&action=edit&section=11" title="Edit section's source code: Prebentzioa eta erantzuna"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Eraso hauek saihesteko, edota eraso gaituztenean kalteen eragina gutxitzeko, hainbat tresna erabili daitezke. Adibidez suebakiak, switch-ak, router-ak, IPS-an oinarritutako prebentzioa, pipeak garbitzea, Blackholing eta sinkholing-a... Hala ere, erasoa jasan dugunean oso garrantzitsua da gure zerbitzariak baliabide nahikoa izatea. Baliabide nahikoa baditu eskariei aurre egingo die, eta ez da zerbitzu etenik egongo. Erasotzailea baliabide aldetik hobea bada, ordea, zerbitzaria txiki geratuko da eta ezingo ditu eskariak kudeatu. Beraz garrantzitsua da ahalik eta zerbitzari berri eta ahaltsuena izatea. </p> <div class="mw-heading mw-heading2"><h2 id="Legeria">Legeria</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&veaction=edit&section=12" title="Aldatu atal hau: «Legeria»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&action=edit&section=12" title="Edit section's source code: Legeria"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Delitu_informatiko" title="Delitu informatiko">Delitu informatikoei</a> dagokienez, legeria oso atzeratua dago herrialde askotan. <a href="/wiki/Erresuma_Batua" title="Erresuma Batua">Erresuma Batuan</a>, adibidez, 2006az geroztik delituak dira horrelako erasoak, eta 10 urteko kartzela zigorra izan dezakete erasotzaileek. <a href="/wiki/Ameriketako_Estatu_Batuak" title="Ameriketako Estatu Batuak">Ameriketako Estatu Batuetan</a> ere zigor handiak jaso ditzake erasoa egiten duenak, delitu federaltzat jotzen baita. <a href="/wiki/Espainia" title="Espainia">Espainian</a> ere legea eraberrituz delitu hauei aurre egin nahi izan diete, eta egun delitua da eraso mota hori egitea. Hala ere, erasotzailearen kokalekua ez jakiteak asko zailtzen du halako erasoen aurkako borroka. Izan ere, nahiz eta delitugilea eta biktima herrialde berekoak izan, askotan beste herrialde batzuetako zerbitzariak agertzen dira tartean. Zerbitzari horietan ezkutatzen da erasotzailearen benetako helbidea, eta helbide hori lortzeko polizien arteko nazioarteko lankidetza behar da. Beraz, delitu txiki asko ez dira argitzen, horiek argitzeak ekarriko lituzkeen kostueangatik. Ondorioz, erasoak eragiten dituen kalteen baitan dago delitua ikertuko duten ala ez. </p> <div class="mw-heading mw-heading2"><h2 id="Ikus,_gainera"><span id="Ikus.2C_gainera"></span>Ikus, gainera</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&veaction=edit&section=13" title="Aldatu atal hau: «Ikus, gainera»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&action=edit&section=13" title="Edit section's source code: Ikus, gainera"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Exploit" title="Exploit">Exploit</a></li> <li><a href="/wiki/Buffer_gainezkatze" title="Buffer gainezkatze">Buffer gainezkatze</a></li> <li><a href="/wiki/Pasahitz_krakeatze" title="Pasahitz krakeatze">Password Crack</a></li> <li><a href="/wiki/Hijacking" title="Hijacking">Hijacking</a></li> <li><a href="/wiki/Sniffer" title="Sniffer">Sniffing</a></li> <li><a href="/wiki/Troiatar" title="Troiatar">Troyako zaldi</a></li> <li><a href="/wiki/Birus_(informatika)" title="Birus (informatika)">Birus</a></li> <li><a href="/wiki/Segurtasun_informatiko" class="mw-redirect" title="Segurtasun informatiko">Segurtasun informatiko</a></li></ul> <p><br /> </p> <div class="mw-heading mw-heading2"><h2 id="Kanpo_estekak">Kanpo estekak</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&veaction=edit&section=14" title="Aldatu atal hau: «Kanpo estekak»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Zerbitzu_ukapenaren_eraso&action=edit&section=14" title="Edit section's source code: Kanpo estekak"><span>aldatu iturburu kodea</span></a><span 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hlist navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th id="Autoritate_kontrola" scope="row" class="navbox-group" style="width:1%;width: 12%; text-align:center;"><a href="/wiki/Laguntza:Autoritate_kontrola" title="Laguntza:Autoritate kontrola">Autoritate kontrola</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><b>Wikimedia proiektuak</b></li> <li><span style="white-space:nowrap;"><span typeof="mw:File"><a href="/wiki/Wikidata" title="Wikidata"><img alt="Wd" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/20px-Wikidata-logo.svg.png" decoding="async" width="20" height="11" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/30px-Wikidata-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/40px-Wikidata-logo.svg.png 2x" data-file-width="1050" data-file-height="590" /></a></span> Datuak:</span> <span class="uid"><a href="https://www.wikidata.org/wiki/Q131406" class="extiw" title="wikidata:Q131406">Q131406</a></span></li> <li><span style="white-space:nowrap;"><span typeof="mw:File"><a href="/wiki/Wikimedia_Commons" title="Commonscat"><img alt="Commonscat" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/15px-Commons-logo.svg.png" decoding="async" width="15" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/23px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> Multimedia:</span> <span class="uid"><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Denial-of-service">Denial-of-service</a></span> / <span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Special:MediaSearch?type=image&search=%22Q131406%22">Q131406</a></span></span></li></ul> <hr /> <ul><li><b>Identifikadoreak</b></li> <li><span style="white-space:nowrap;"><a href="/wiki/Biblioth%C3%A8que_nationale_de_France" class="mw-redirect" title="Bibliothèque nationale de France">BNF</a>:</span> <span class="uid"><a rel="nofollow" class="external text" href="https://catalogue.bnf.fr/ark:/12148/cb166838118">166838118</a> <a rel="nofollow" class="external text" href="http://data.bnf.fr/ark:/12148/cb166838118">(data)</a></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Library_of_Congress_Control_Number" title="Library of Congress Control Number">LCCN</a>:</span> <span class="uid"><a rel="nofollow" class="external text" href="https://id.loc.gov/authorities/sh2009009013">sh2009009013</a></span></li> <li><b>Hiztegiak eta entziklopediak</b></li> <li><span style="white-space:nowrap;"><a href="/wiki/Encyclop%C3%A6dia_Britannica" title="Encyclopædia Britannica">Britannica</a>:</span> <span class="uid"><a rel="nofollow" class="external text" href="https://www.britannica.com/topic/denial-of-service-attack">url</a></span></li></ul> </div></td></tr></tbody></table></div><div class="mw-mf-linked-projects hlist"> <ul><li><span style="white-space:nowrap;"><span typeof="mw:File"><a href="/wiki/Wikidata" title="Wikidata"><img alt="Wd" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/20px-Wikidata-logo.svg.png" decoding="async" width="20" height="11" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/30px-Wikidata-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/40px-Wikidata-logo.svg.png 2x" data-file-width="1050" data-file-height="590" /></a></span> Datuak:</span> <span class="uid"><a href="https://www.wikidata.org/wiki/Q131406" class="extiw" title="wikidata:Q131406">Q131406</a></span></li> <li><span style="white-space:nowrap;"><span typeof="mw:File"><a href="/wiki/Wikimedia_Commons" title="Commonscat"><img alt="Commonscat" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/15px-Commons-logo.svg.png" decoding="async" width="15" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/23px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> Multimedia:</span> <span class="uid"><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Denial-of-service">Denial-of-service</a></span> / <span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Special:MediaSearch?type=image&search=%22Q131406%22">Q131406</a></span></span></li></ul> </div></div>    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