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GitHub - RuiSiang/PoW-Shield: Project dedicated to fight Layer 7 DDoS with proof of work, with an additional WAF and controller. Completed with full set of features and containerized for rapid and lightweight deployment.
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12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path> </svg> </a></li> </ul> </div> </div> </div> </li> <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item"> <button type="button" class="HeaderMenu-link border-0 width-full width-lg-auto px-0 px-lg-2 py-lg-2 no-wrap d-flex flex-items-center flex-justify-between js-details-target" aria-expanded="false"> Solutions <svg opacity="0.5" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-down HeaderMenu-icon ml-1"> <path d="M12.78 5.22a.749.749 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.06 0L3.22 6.28a.749.749 0 1 1 1.06-1.06L8 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Link--secondary" data-analytics-event="{"location":"navbar","action":"view_all_industries","context":"solutions","tag":"link","label":"view_all_industries_link_solutions_navbar"}" href="/solutions/industry"> View all industries </a></li> </ul> </div> </div> <div class="HeaderMenu-trailing-link rounded-bottom-2 flex-shrink-0 mt-lg-4 px-lg-4 py-4 py-lg-3 f5 text-semibold"> <a href="/solutions"> View all solutions <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-right HeaderMenu-trailing-link-icon"> <path d="M6.22 3.22a.75.75 0 0 1 1.06 0l4.25 4.25a.75.75 0 0 1 0 1.06l-4.25 4.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L9.94 8 6.22 4.28a.75.75 0 0 1 0-1.06Z"></path> </svg> </a> </div> </div> </li> <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item"> <button type="button" class="HeaderMenu-link border-0 width-full width-lg-auto px-0 px-lg-2 py-lg-2 no-wrap d-flex flex-items-center flex-justify-between js-details-target" aria-expanded="false"> Resources <svg opacity="0.5" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-down HeaderMenu-icon ml-1"> <path d="M12.78 5.22a.749.749 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.06 0L3.22 6.28a.749.749 0 1 1 1.06-1.06L8 8.939l3.72-3.719a.749.749 0 0 1 1.06 0Z"></path> </svg> </button> <div class="HeaderMenu-dropdown dropdown-menu rounded m-0 p-0 pt-2 pt-lg-4 position-relative position-lg-absolute left-0 left-lg-n3 pb-2 pb-lg-4 d-lg-flex flex-wrap dropdown-menu-wide"> <div class="HeaderMenu-column px-lg-4 border-lg-right mb-4 mb-lg-0 pr-lg-7"> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0"> <span class="d-block h4 color-fg-default my-1" id="resources-topics-heading">Topics</span> <ul 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data-view-component="true" class="octicon octicon-link-external HeaderMenu-external-icon color-fg-subtle"> <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path> </svg> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"executive_insights","context":"resources","tag":"link","label":"executive_insights_link_resources_navbar"}" href="https://github.com/solutions/executive-insights"> Executive Insights </a></li> </ul> </div> </div> </div> </li> <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item"> <button type="button" class="HeaderMenu-link border-0 width-full width-lg-auto px-0 px-lg-2 py-lg-2 no-wrap d-flex flex-items-center flex-justify-between js-details-target" aria-expanded="false"> Open Source <svg opacity="0.5" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-down HeaderMenu-icon ml-1"> <path d="M12.78 5.22a.749.749 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.06 0L3.22 6.28a.749.749 0 1 1 1.06-1.06L8 8.939l3.72-3.719a.749.749 0 0 1 1.06 0Z"></path> </svg> </button> <div class="HeaderMenu-dropdown dropdown-menu rounded m-0 p-0 pt-2 pt-lg-4 position-relative position-lg-absolute left-0 left-lg-n3 pb-2 pb-lg-4 px-lg-4"> <div class="HeaderMenu-column"> <div class="border-bottom pb-3 pb-lg-0 pb-lg-3 mb-3 mb-lg-0 mb-lg-3"> <ul class="list-style-none f5" > <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description" data-analytics-event="{"location":"navbar","action":"github_sponsors","context":"open_source","tag":"link","label":"github_sponsors_link_open_source_navbar"}" href="/sponsors"> <div> <div class="color-fg-default h4">GitHub Sponsors</div> Fund open source developers </div> </a></li> </ul> </div> <div class="border-bottom pb-3 pb-lg-0 pb-lg-3 mb-3 mb-lg-0 mb-lg-3"> <ul class="list-style-none f5" > <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description" data-analytics-event="{"location":"navbar","action":"the_readme_project","context":"open_source","tag":"link","label":"the_readme_project_link_open_source_navbar"}" href="https://github.com/readme"> <div> <div class="color-fg-default h4">The ReadME Project</div> GitHub community articles </div> </a></li> </ul> </div> <div class="border-bottom pb-3 pb-lg-0 border-bottom-0"> <span class="d-block h4 color-fg-default my-1" id="open-source-repositories-heading">Repositories</span> <ul class="list-style-none f5" aria-labelledby="open-source-repositories-heading"> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"topics","context":"open_source","tag":"link","label":"topics_link_open_source_navbar"}" href="https://github.com/topics"> Topics </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"trending","context":"open_source","tag":"link","label":"trending_link_open_source_navbar"}" href="https://github.com/trending"> Trending </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" 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</div> </modal-dialog></div> </div> <div data-action="click:qbsearch-input#retract" class="dark-backdrop position-fixed" hidden data-target="qbsearch-input.darkBackdrop"></div> <div class="color-fg-default"> <dialog-helper> <dialog data-target="qbsearch-input.feedbackDialog" data-action="close:qbsearch-input#handleDialogClose cancel:qbsearch-input#handleDialogClose" id="feedback-dialog" aria-modal="true" aria-labelledby="feedback-dialog-title" aria-describedby="feedback-dialog-description" data-view-component="true" class="Overlay Overlay-whenNarrow Overlay--size-medium Overlay--motion-scaleFade Overlay--disableScroll"> <div data-view-component="true" class="Overlay-header"> <div class="Overlay-headerContentWrap"> <div class="Overlay-titleWrap"> <h1 class="Overlay-title " id="feedback-dialog-title"> Provide feedback </h1> </div> <div class="Overlay-actionWrap"> <button data-close-dialog-id="feedback-dialog" aria-label="Close" type="button" data-view-component="true" class="close-button 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seriously.</p> <textarea name="feedback" class="form-control width-full mb-2" style="height: 120px" id="feedback"></textarea> <input name="include_email" id="include_email" aria-label="Include my email address so I can be contacted" class="form-control mr-2" type="checkbox"> <label for="include_email" style="font-weight: normal">Include my email address so I can be contacted</label> </form></div> </scrollable-region> <div data-view-component="true" class="Overlay-footer Overlay-footer--alignEnd"> <button data-close-dialog-id="feedback-dialog" type="button" data-view-component="true" class="btn"> Cancel </button> <button form="code-search-feedback-form" data-action="click:qbsearch-input#submitFeedback" type="submit" data-view-component="true" class="btn-primary btn"> Submit feedback </button> </div> </dialog></dialog-helper> <custom-scopes data-target="qbsearch-input.customScopesManager"> <dialog-helper> <dialog data-target="custom-scopes.customScopesModalDialog" data-action="close:qbsearch-input#handleDialogClose cancel:qbsearch-input#handleDialogClose" id="custom-scopes-dialog" aria-modal="true" aria-labelledby="custom-scopes-dialog-title" aria-describedby="custom-scopes-dialog-description" data-view-component="true" class="Overlay Overlay-whenNarrow Overlay--size-medium Overlay--motion-scaleFade Overlay--disableScroll"> <div data-view-component="true" class="Overlay-header Overlay-header--divided"> <div class="Overlay-headerContentWrap"> <div class="Overlay-titleWrap"> <h1 class="Overlay-title " id="custom-scopes-dialog-title"> Saved searches </h1> <h2 id="custom-scopes-dialog-description" class="Overlay-description">Use saved searches to filter your results more quickly</h2> </div> <div class="Overlay-actionWrap"> <button data-close-dialog-id="custom-scopes-dialog" aria-label="Close" type="button" data-view-component="true" class="close-button Overlay-closeButton"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x"> <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path> </svg></button> </div> </div> </div> <scrollable-region data-labelled-by="custom-scopes-dialog-title"> <div data-view-component="true" class="Overlay-body"> <div data-target="custom-scopes.customScopesModalDialogFlash"></div> <div hidden class="create-custom-scope-form" data-target="custom-scopes.createCustomScopeForm"> <!-- '"` --><!-- </textarea></xmp> --></option></form><form id="custom-scopes-dialog-form" data-turbo="false" action="/search/custom_scopes" accept-charset="UTF-8" method="post"><input type="hidden" data-csrf="true" name="authenticity_token" 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href=\"https://raw.githubusercontent.com/RuiSiang/PoW-Shield/main/screenshot.jpg\"\u003e\u003cimg height=\"auto\" width=\"100%\" src=\"https://raw.githubusercontent.com/RuiSiang/PoW-Shield/main/screenshot.jpg\" alt=\"PoW Shield\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cdiv align=\"center\" dir=\"auto\"\u003e\n \u003ca target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://github.com/RuiSiang/PoW-Shield/actions/workflows/nodejs-ci.yml/badge.svg\"\u003e\u003cimg src=\"https://github.com/RuiSiang/PoW-Shield/actions/workflows/nodejs-ci.yml/badge.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n \u003ca target=\"_blank\" rel=\"noopener noreferrer\" href=\"https://github.com/RuiSiang/PoW-Shield/actions/workflows/njsscan-analysis.yml/badge.svg\"\u003e\u003cimg src=\"https://github.com/RuiSiang/PoW-Shield/actions/workflows/njsscan-analysis.yml/badge.svg\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n \u003ca target=\"_blank\" rel=\"noopener 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3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003ePoW Shield provides DDoS protection on OSI application layer by acting as a proxy that utilizes proof of work between the backend service and the end user. This project aims to provide an alternative to general anti-DDoS methods such as Google's ReCaptcha that has always been a pain to solve. Accessing a web service protected by PoW Shield has never been easier, simply go to the url, and your browser will do the rest of the verification automatically for you.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003ePoW Shield aims to provide the following services bundled in a single webapp / docker image:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eproof of work authentication\u003c/li\u003e\n\u003cli\u003eratelimiting and ip blacklisting\u003c/li\u003e\n\u003cli\u003eweb application firewall\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp dir=\"auto\"\u003e(New) \u003ca href=\"https://www.linkedin.com/feed/update/urn:li:ugcPost:6994133790017163264?updateEntityUrn=urn%3Ali%3Afs_updateV2%3A%28urn%3Ali%3AugcPost%3A6994133790017163264%2CFEED_DETAIL%2CEMPTY%2CDEFAULT%2Cfalse%29\" rel=\"nofollow\"\u003eArticle on LinkedIn\u003c/a\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://youtu.be/zeNKUDR7_Jc\" title=\"The Tool Box | PoW Shield\" rel=\"nofollow\"\u003eFeatured on Pentester Academy TV\u003c/a\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://ruisiang.medium.com/pow-shield-application-layer-proof-of-work-ddos-filter-4fed32465509\" title=\"PoW Shield: Application Layer Proof of Work DDoS Filter\" rel=\"nofollow\"\u003eStory on Medium\u003c/a\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eFeatures\u003c/h2\u003e\u003ca id=\"user-content-features\" class=\"anchor\" aria-label=\"Permalink: Features\" href=\"#features\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eWeb Service Structure\u003c/li\u003e\n\u003cli\u003eProxy Functionality\u003c/li\u003e\n\u003cli\u003ePoW Implementation\u003c/li\u003e\n\u003cli\u003eDockerization\u003c/li\u003e\n\u003cli\u003eIP Blacklisting\u003c/li\u003e\n\u003cli\u003eRatelimiting\u003c/li\u003e\n\u003cli\u003eUnit Testing\u003c/li\u003e\n\u003cli\u003eWAF Implementation\u003c/li\u003e\n\u003cli\u003eMulti-Instance Syncing (Redis)\u003c/li\u003e\n\u003cli\u003eSSL Support\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp dir=\"auto\"\u003eSupported via \u003ca href=\"https://github.com/ruisiang/PoW-Phalanx\"\u003ePoW Phalanx\u003c/a\u003e controller:\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMulti-instance Management\u003c/li\u003e\n\u003cli\u003eWhitelist tokens\u003c/li\u003e\n\u003cli\u003eBlacklist IP syncing\u003c/li\u003e\n\u003cli\u003eDynamic difficulty control\u003c/li\u003e\n\u003cli\u003eDashboard\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp dir=\"auto\"\u003eAlternate implementation in Go \u003ca href=\"https://github.com/RuiSiang/Pow-Shield-Go\"\u003ePoW-Shield-Go\u003c/a\u003e (WIP) for stress testing purposes and future optimized production version.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eHow it Works\u003c/h2\u003e\u003ca id=\"user-content-how-it-works\" class=\"anchor\" aria-label=\"Permalink: How it Works\" href=\"#how-it-works\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eSo basically, PoW Shield works as a proxy in front of the actual web app/service. It conducts verification via proof-of-work and only proxies authorized traffic through to the actual server. The proxy is easily installable, and is capable of protecting low security applications with a WAF.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eHere’s what happens behind the scenes when a user browses a PoW Shield-protected webservice:\u003c/p\u003e\n\u003col dir=\"auto\"\u003e\n\u003cli\u003eThe server generates a random hex-encoded “prefix” and sends it along with the PoW Shield page to the client.\u003c/li\u003e\n\u003cli\u003eBrowser JavaScript on the client side then attempts to brute-force a “nonce” that when appended with the prefix, can produce a SHA256 hash with the number of leading zero-bits more than the “difficulty” D specified by the server. i.e. SHA256(prefix + nonce)=0…0xxxx (binary, with more than D leading 0s)\u003c/li\u003e\n\u003cli\u003eClient-side JavaScript then sends the calculated nonce to the server for verification, if verification passes, the server generates a cookie for the client to pass authentication.\u003c/li\u003e\n\u003cli\u003eThe server starts proxying the now authenticated client traffic to the server with WAF filtering enabled.\u003c/li\u003e\n\u003c/ol\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eConfiguration\u003c/h2\u003e\u003ca id=\"user-content-configuration\" class=\"anchor\" aria-label=\"Permalink: Configuration\" href=\"#configuration\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eYou can configure PoW Shield via the following methods.\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003enodejs: .env (example: .env.example)\u003c/li\u003e\n\u003cli\u003edocker-compose: docker-compose.yaml (example: docker-compose.example.yaml)\u003c/li\u003e\n\u003cli\u003edocker run: -e parameter\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eEnvironmental Variables\u003c/h3\u003e\u003ca id=\"user-content-environmental-variables\" class=\"anchor\" aria-label=\"Permalink: Environmental Variables\" href=\"#environmental-variables\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eVariable\u003c/th\u003e\n\u003cth\u003eType\u003c/th\u003e\n\u003cth\u003eDefault\u003c/th\u003e\n\u003cth\u003eDescription\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePORT\u003c/td\u003e\n\u003ctd\u003eGeneral\u003c/td\u003e\n\u003ctd\u003e3000\u003c/td\u003e\n\u003ctd\u003eport that PoW Shield listens to\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSESSION_KEY\u003c/td\u003e\n\u003ctd\u003eGeneral\u003c/td\u003e\n\u003ctd\u003e\u003c/td\u003e\n\u003ctd\u003esecret key for cookie signatures, use a unique one for security reasons, or anyone can forge your signed cookies\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBACKEND_URL\u003c/td\u003e\n\u003ctd\u003eGeneral\u003c/td\u003e\n\u003ctd\u003e\u003c/td\u003e\n\u003ctd\u003elocation to proxy authenticated traffic to, IP and URLs are both accepted(accepts protocol://url(:port) or protocol://ip(:port))\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDATABASE_HOST\u003c/td\u003e\n\u003ctd\u003eRedis\u003c/td\u003e\n\u003ctd\u003e127.0.0.1\u003c/td\u003e\n\u003ctd\u003eredis service host\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDATABASE_PORT\u003c/td\u003e\n\u003ctd\u003eRedis\u003c/td\u003e\n\u003ctd\u003e6379\u003c/td\u003e\n\u003ctd\u003eredis service port\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDATABASE_PASSWORD\u003c/td\u003e\n\u003ctd\u003eRedis\u003c/td\u003e\n\u003ctd\u003enull\u003c/td\u003e\n\u003ctd\u003eredis service password\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePOW\u003c/td\u003e\n\u003ctd\u003ePoW\u003c/td\u003e\n\u003ctd\u003eon\u003c/td\u003e\n\u003ctd\u003etoggles PoW functionality on/off (if not temporary switched off, why use this project at all?)\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNONCE_VALIDITY\u003c/td\u003e\n\u003ctd\u003ePoW\u003c/td\u003e\n\u003ctd\u003e60000\u003c/td\u003e\n\u003ctd\u003especifies the maximum seconds a nonce has to be submitted to the server after generation(used to enforce difficulty change and filter out stale nonces)\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDIFFICULTY\u003c/td\u003e\n\u003ctd\u003ePoW\u003c/td\u003e\n\u003ctd\u003e13\u003c/td\u003e\n\u003ctd\u003eproblem difficulty, number of leading 0-bits in produced hash (0:extremely easy ~ 256:impossible, 13(default) takes about 5 seconds for the browser to calculate)\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRATE_LIMIT\u003c/td\u003e\n\u003ctd\u003eRate Limit\u003c/td\u003e\n\u003ctd\u003eon\u003c/td\u003e\n\u003ctd\u003etoggles ratelimit functionality on/off\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRATE_LIMIT_SAMPLE_MINUTES\u003c/td\u003e\n\u003ctd\u003eRate Limit\u003c/td\u003e\n\u003ctd\u003e60\u003c/td\u003e\n\u003ctd\u003especifies how many minutes until statistics reset for session/ip\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRATE_LIMIT_SESSION_THRESHOLD\u003c/td\u003e\n\u003ctd\u003eRate Limit\u003c/td\u003e\n\u003ctd\u003e100\u003c/td\u003e\n\u003ctd\u003enumber of requests that a single session can make until triggering token revocation\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRATE_LIMIT_BAN_IP\u003c/td\u003e\n\u003ctd\u003eRate Limit\u003c/td\u003e\n\u003ctd\u003eon\u003c/td\u003e\n\u003ctd\u003etoggles ip banning functionality on/off\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRATE_LIMIT_IP_THRESHOLD\u003c/td\u003e\n\u003ctd\u003eRate Limit\u003c/td\u003e\n\u003ctd\u003e500\u003c/td\u003e\n\u003ctd\u003enumber of requests that a single session can make until triggering IP ban\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRATE_LIMIT_BAN_MINUTES\u003c/td\u003e\n\u003ctd\u003eRate Limit\u003c/td\u003e\n\u003ctd\u003e15\u003c/td\u003e\n\u003ctd\u003enumber of minutes that IP ban persists\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWAF\u003c/td\u003e\n\u003ctd\u003eWAF\u003c/td\u003e\n\u003ctd\u003eon\u003c/td\u003e\n\u003ctd\u003etoggles waf functionality on/off\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWAF_URL_EXCLUDE_RULES\u003c/td\u003e\n\u003ctd\u003eWAF\u003c/td\u003e\n\u003ctd\u003e\u003c/td\u003e\n\u003ctd\u003eexclude rules to check when scanning request url, use ',' to seperate rule numbers, use '-' to specify a range (eg: 1,2-4,5,7-10)\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWAF_HEADER_EXCLUDE_RULES\u003c/td\u003e\n\u003ctd\u003eWAF\u003c/td\u003e\n\u003ctd\u003e14,33,80,96,100\u003c/td\u003e\n\u003ctd\u003eexclude rules to check when scanning request header, use ',' to seperate rule numbers, use '-' to specify a range (eg: 1,2-4,5,7-10)\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWAF_BODY_EXCLUDE_RULES\u003c/td\u003e\n\u003ctd\u003eWAF\u003c/td\u003e\n\u003ctd\u003e\u003c/td\u003e\n\u003ctd\u003eexclude rules to check when scanning request body, use ',' to seperate rule numbers, use '-' to specify a range (eg: 1,2-4,5,7-10)\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSSL\u003c/td\u003e\n\u003ctd\u003eSSL\u003c/td\u003e\n\u003ctd\u003eoff\u003c/td\u003e\n\u003ctd\u003etoggles SSL functionality on/off\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSSL_CERT_PATH\u003c/td\u003e\n\u003ctd\u003eSSL\u003c/td\u003e\n\u003ctd\u003etests/ssl/mock-cert.pem\u003c/td\u003e\n\u003ctd\u003epath to SSL certificate password\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSSL_KEY_PATH\u003c/td\u003e\n\u003ctd\u003eSSL\u003c/td\u003e\n\u003ctd\u003etests/ssl/mock-key.pem\u003c/td\u003e\n\u003ctd\u003epath to SSL key\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSOCKET\u003c/td\u003e\n\u003ctd\u003eSocket\u003c/td\u003e\n\u003ctd\u003eoff\u003c/td\u003e\n\u003ctd\u003etoggles socket functionality on/off\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSOCKET_URL\u003c/td\u003e\n\u003ctd\u003eSocket\u003c/td\u003e\n\u003ctd\u003e\u003c/td\u003e\n\u003ctd\u003elocation of PoW Phalanx controller, IP and URLs are both accepted(accepts protocol://url:port or protocol://ip:port)\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSOCKET_TOKEN\u003c/td\u003e\n\u003ctd\u003eSocket\u003c/td\u003e\n\u003ctd\u003e\u003c/td\u003e\n\u003ctd\u003esubscription token for PoW Phalanx controller\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eUsage\u003c/h2\u003e\u003ca id=\"user-content-usage\" class=\"anchor\" aria-label=\"Permalink: Usage\" href=\"#usage\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eNodejs\u003c/h3\u003e\u003ca id=\"user-content-nodejs\" class=\"anchor\" aria-label=\"Permalink: Nodejs\" href=\"#nodejs\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch4 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003ePrerequisites\u003c/h4\u003e\u003ca id=\"user-content-prerequisites\" class=\"anchor\" aria-label=\"Permalink: Prerequisites\" href=\"#prerequisites\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eDocker ^19.0.0\u003c/li\u003e\n\u003cli\u003eNodejs ^14.0.0\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"# Clone repository\ngit clone https://github.com/RuiSiang/PoW-Shield.git\n\n# Install dependencies\nnpm install\n\n# Configure settings\ncp -n .env.example .env\n# Edit .env\nnano .env\n\n# Transpile\nnpm run build\n\n#############################################\n# Run with db (redis), recommended \u0026amp; faster #\n# install redis first #\n# sudo apt-get install redis-server #\n#############################################\nnpm start\n#############################################\n\n#############################################\n# Run without db (mock redis) #\n#############################################\nnpm run start:standalone # linux\nnpm run start:standalone-win # windows\n#############################################\n\n# Test functionalities(optional)\nnpm test\n\"\u003e\u003cpre\u003e\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Clone repository\u003c/span\u003e\ngit clone https://github.com/RuiSiang/PoW-Shield.git\n\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Install dependencies\u003c/span\u003e\nnpm install\n\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Configure settings\u003c/span\u003e\ncp -n .env.example .env\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Edit .env\u003c/span\u003e\nnano .env\n\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Transpile\u003c/span\u003e\nnpm run build\n\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e############################################\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Run with db (redis), recommended \u0026amp; faster #\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e install redis first #\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e sudo apt-get install redis-server #\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e############################################\u003c/span\u003e\nnpm start\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e############################################\u003c/span\u003e\n\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e############################################\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Run without db (mock redis) #\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e############################################\u003c/span\u003e\nnpm run start:standalone \u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e linux\u003c/span\u003e\nnpm run start:standalone-win \u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e windows\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e############################################\u003c/span\u003e\n\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Test functionalities(optional)\u003c/span\u003e\nnpm \u003cspan class=\"pl-c1\"\u003etest\u003c/span\u003e\n\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eDocker (\u003ca href=\"https://hub.docker.com/repository/docker/ruisiang/pow-shield\" rel=\"nofollow\"\u003erepo\u003c/a\u003e)\u003c/h3\u003e\u003ca id=\"user-content-docker-repo\" class=\"anchor\" aria-label=\"Permalink: Docker (repo)\" href=\"#docker-repo\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"####################################################\n# Docker run with db (redis), recommended \u0026amp; faster #\n####################################################\ndocker run -p 3000:3000 -e BACKEND_URL=\u0026quot;http://example.com\u0026quot; -d ruisiang/pow-shield\n####################################################\n\n####################################################\n# Docker run without db (mock redis) #\n####################################################\ndocker run -p 3000:3000 -e BACKEND_URL=\u0026quot;http://example.com\u0026quot; -e NODE_ENV=\u0026quot;standalone\u0026quot; -d ruisiang/pow-shield\n####################################################\n\n####################################################\n# Docker Compose #\n####################################################\n# Copy docker-compose.example.yaml\ncp -n docker-compose.example.yaml docker-compose.yaml\n# Edit docker-compose.yaml\nnano docker-compose.yaml\n\n# Start the container\ndocker-compose -f docker-compose.yaml up\n####################################################\"\u003e\u003cpre\u003e\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e###################################################\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Docker run with db (redis), recommended \u0026amp; faster #\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e###################################################\u003c/span\u003e\ndocker run -p 3000:3000 -e BACKEND_URL=\u003cspan class=\"pl-s\"\u003e\u003cspan class=\"pl-pds\"\u003e\"\u003c/span\u003ehttp://example.com\u003cspan class=\"pl-pds\"\u003e\"\u003c/span\u003e\u003c/span\u003e -d ruisiang/pow-shield\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e###################################################\u003c/span\u003e\n\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e###################################################\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Docker run without db (mock redis) #\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e###################################################\u003c/span\u003e\ndocker run -p 3000:3000 -e BACKEND_URL=\u003cspan class=\"pl-s\"\u003e\u003cspan class=\"pl-pds\"\u003e\"\u003c/span\u003ehttp://example.com\u003cspan class=\"pl-pds\"\u003e\"\u003c/span\u003e\u003c/span\u003e -e NODE_ENV=\u003cspan class=\"pl-s\"\u003e\u003cspan class=\"pl-pds\"\u003e\"\u003c/span\u003estandalone\u003cspan class=\"pl-pds\"\u003e\"\u003c/span\u003e\u003c/span\u003e -d ruisiang/pow-shield\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e###################################################\u003c/span\u003e\n\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e###################################################\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Docker Compose #\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e###################################################\u003c/span\u003e\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Copy docker-compose.example.yaml\u003c/span\u003e\ncp -n docker-compose.example.yaml docker-compose.yaml\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Edit docker-compose.yaml\u003c/span\u003e\nnano docker-compose.yaml\n\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Start the container\u003c/span\u003e\ndocker-compose -f docker-compose.yaml up\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e###################################################\u003c/span\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eStress Test\u003c/h2\u003e\u003ca id=\"user-content-stress-test\" class=\"anchor\" aria-label=\"Permalink: Stress Test\" href=\"#stress-test\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eNote: This only works on non-containerized version of PoW Shield, and that your system might experience unstability when running the test.\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"# Start the stress test\nnpm run stress\n\n# If you changed the PORT variable in .env, you should also change the target variable in the stress test script\nnano scripts/stress.sh\"\u003e\u003cpre\u003e\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e Start the stress test\u003c/span\u003e\nnpm run stress\n\n\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e If you changed the PORT variable in .env, you should also change the target variable in the stress test script\u003c/span\u003e\nnano scripts/stress.sh\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003eThe following tests are are conducted on a single thread of a i7-10870H CPU with a 60 second period for each concurrent parameter.\u003c/em\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eMass GET\u003c/h3\u003e\u003ca id=\"user-content-mass-get\" class=\"anchor\" aria-label=\"Permalink: Mass GET\" href=\"#mass-get\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth align=\"right\"\u003eConcurrent Connections\u003c/th\u003e\n\u003cth align=\"right\"\u003eAvg Latency\u003c/th\u003e\n\u003cth align=\"right\"\u003eError Rate\u003c/th\u003e\n\u003cth align=\"right\"\u003eRequests/Second\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e64\u003c/td\u003e\n\u003ctd align=\"right\"\u003e15.3ms\u003c/td\u003e\n\u003ctd align=\"right\"\u003e0.0000\u003c/td\u003e\n\u003ctd align=\"right\"\u003e4188\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e128\u003c/td\u003e\n\u003ctd align=\"right\"\u003e30.2ms\u003c/td\u003e\n\u003ctd align=\"right\"\u003e0.0000\u003c/td\u003e\n\u003ctd align=\"right\"\u003e4229\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e256\u003c/td\u003e\n\u003ctd align=\"right\"\u003e60.4ms\u003c/td\u003e\n\u003ctd align=\"right\"\u003e0.0000\u003c/td\u003e\n\u003ctd align=\"right\"\u003e4235\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e512\u003c/td\u003e\n\u003ctd align=\"right\"\u003e122.6ms\u003c/td\u003e\n\u003ctd align=\"right\"\u003e0.0142\u003c/td\u003e\n\u003ctd align=\"right\"\u003e4166\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e1024\u003c/td\u003e\n\u003ctd align=\"right\"\u003e261.7ms\u003c/td\u003e\n\u003ctd align=\"right\"\u003e0.1766\u003c/td\u003e\n\u003ctd align=\"right\"\u003e3894\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e2048\u003c/td\u003e\n\u003ctd align=\"right\"\u003e1966.5ms\u003c/td\u003e\n\u003ctd align=\"right\"\u003e0.4979\u003c/td\u003e\n\u003ctd align=\"right\"\u003e1027\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e4096\u003c/td\u003e\n\u003ctd align=\"right\"\u003e4685ms\u003c/td\u003e\n\u003ctd align=\"right\"\u003e0.7179\u003c/td\u003e\n\u003ctd align=\"right\"\u003e838\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eNonce Flood\u003c/h3\u003e\u003ca id=\"user-content-nonce-flood\" class=\"anchor\" aria-label=\"Permalink: Nonce Flood\" href=\"#nonce-flood\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth align=\"right\"\u003eConcurrent Connections\u003c/th\u003e\n\u003cth align=\"right\"\u003eAvg Latency\u003c/th\u003e\n\u003cth align=\"right\"\u003eError Rate\u003c/th\u003e\n\u003cth align=\"right\"\u003eRequests/Second\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e64\u003c/td\u003e\n\u003ctd align=\"right\"\u003e15.6ms\u003c/td\u003e\n\u003ctd align=\"right\"\u003eN/A\u003c/td\u003e\n\u003ctd align=\"right\"\u003e4094\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e128\u003c/td\u003e\n\u003ctd align=\"right\"\u003e31.5ms\u003c/td\u003e\n\u003ctd align=\"right\"\u003eN/A\u003c/td\u003e\n\u003ctd align=\"right\"\u003e4058\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e256\u003c/td\u003e\n\u003ctd align=\"right\"\u003e61.5ms\u003c/td\u003e\n\u003ctd align=\"right\"\u003eN/A\u003c/td\u003e\n\u003ctd align=\"right\"\u003e4159\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e512\u003c/td\u003e\n\u003ctd align=\"right\"\u003e129.5ms\u003c/td\u003e\n\u003ctd align=\"right\"\u003eN/A\u003c/td\u003e\n\u003ctd align=\"right\"\u003e3945\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e1024\u003c/td\u003e\n\u003ctd align=\"right\"\u003e264.4ms\u003c/td\u003e\n\u003ctd align=\"right\"\u003eN/A\u003c/td\u003e\n\u003ctd align=\"right\"\u003e3858\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e2048\u003c/td\u003e\n\u003ctd align=\"right\"\u003e592.1ms\u003c/td\u003e\n\u003ctd align=\"right\"\u003eN/A\u003c/td\u003e\n\u003ctd align=\"right\"\u003e3407\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"right\"\u003e4096\u003c/td\u003e\n\u003ctd align=\"right\"\u003e1212.6ms\u003c/td\u003e\n\u003ctd align=\"right\"\u003eN/A\u003c/td\u003e\n\u003ctd align=\"right\"\u003e3322\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003cp dir=\"auto\"\u003eFrom the above sample, we can see that the appropriate max load estimate for PoW Shield is around 512 concurrent connections. Error rates and latencies deteriorate beyond normal acceptance afterwards. Hence in a load-balanced environment on the machine (1 PoW Shield instance on each of it's 8 cores), it should be able to handle a maximum of approximately 4096 concurrent connections (clients) at a total request rate of 32k requests/second.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eReferences\u003c/h2\u003e\u003ca id=\"user-content-references\" class=\"anchor\" aria-label=\"Permalink: References\" href=\"#references\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eProof-of-work by Fedor Indutny (PoW utility functions)\u003c/li\u003e\n\u003cli\u003eShadowd by Zesecure (WAF rules)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eLicense\u003c/h2\u003e\u003ca id=\"user-content-license\" class=\"anchor\" aria-label=\"Permalink: License\" href=\"#license\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eMIT\u003c/p\u003e\n\u003c/article\u003e","loaded":true,"timedOut":false,"errorMessage":null,"headerInfo":{"toc":[{"level":2,"text":"Description","anchor":"description","htmlText":"Description"},{"level":2,"text":"Features","anchor":"features","htmlText":"Features"},{"level":2,"text":"How it Works","anchor":"how-it-works","htmlText":"How it Works"},{"level":2,"text":"Configuration","anchor":"configuration","htmlText":"Configuration"},{"level":3,"text":"Environmental Variables","anchor":"environmental-variables","htmlText":"Environmental Variables"},{"level":2,"text":"Usage","anchor":"usage","htmlText":"Usage"},{"level":3,"text":"Nodejs","anchor":"nodejs","htmlText":"Nodejs"},{"level":4,"text":"Prerequisites","anchor":"prerequisites","htmlText":"Prerequisites"},{"level":3,"text":"Docker (repo)","anchor":"docker-repo","htmlText":"Docker (repo)"},{"level":2,"text":"Stress Test","anchor":"stress-test","htmlText":"Stress Test"},{"level":3,"text":"Mass GET","anchor":"mass-get","htmlText":"Mass GET"},{"level":3,"text":"Nonce Flood","anchor":"nonce-flood","htmlText":"Nonce Flood"},{"level":2,"text":"References","anchor":"references","htmlText":"References"},{"level":2,"text":"License","anchor":"license","htmlText":"License"}],"siteNavLoginPath":"/login?return_to=https%3A%2F%2Fgithub.com%2FRuiSiang%2FPoW-Shield"}},{"displayName":"LICENSE","repoName":"PoW-Shield","refName":"main","path":"LICENSE","preferredFileType":"license","tabName":"MIT","richText":null,"loaded":false,"timedOut":false,"errorMessage":null,"headerInfo":{"toc":null,"siteNavLoginPath":"/login?return_to=https%3A%2F%2Fgithub.com%2FRuiSiang%2FPoW-Shield"}}],"overviewFilesProcessingTime":0}},"appPayload":{"helpUrl":"https://docs.github.com","findFileWorkerPath":"/assets-cdn/worker/find-file-worker-7d7eb7c71814.js","findInFileWorkerPath":"/assets-cdn/worker/find-in-file-worker-96e76d5fdb2c.js","githubDevUrl":null,"enabled_features":{"copilot_workspace":null,"code_nav_ui_events":false,"overview_shared_code_dropdown_button":false,"react_blob_overlay":false,"accessible_code_button":true,"github_models_repo_tab":false}}}}</script> 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href="https://deepsource.io/gh/RuiSiang/PoW-Shield/?ref=repository-badge" rel="nofollow"> <img src="https://camo.githubusercontent.com/463c465b65a704e138de1b784a50ae528e53b7cc0db05a0651760776d93c2b6c/68747470733a2f2f64656570736f757263652e696f2f67682f5275695369616e672f506f572d536869656c642e7376672f3f6c6162656c3d7265736f6c7665642b6973737565732673686f775f7472656e643d7472756526746f6b656e3d796f4675426c52566158547a49566b674142366153556633" data-canonical-src="https://deepsource.io/gh/RuiSiang/PoW-Shield.svg/?label=resolved+issues&show_trend=true&token=yoFuBlRVaXTzIVkgAB6aSUf3" style="max-width: 100%;"> </a> </div> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Description</h2><a id="user-content-description" class="anchor" aria-label="Permalink: Description" href="#description"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">PoW Shield provides DDoS protection on OSI application layer by acting as a proxy that utilizes proof of work between the backend service and the end user. This project aims to provide an alternative to general anti-DDoS methods such as Google's ReCaptcha that has always been a pain to solve. Accessing a web service protected by PoW Shield has never been easier, simply go to the url, and your browser will do the rest of the verification automatically for you.</p> <p dir="auto">PoW Shield aims to provide the following services bundled in a single webapp / docker image:</p> <ul dir="auto"> <li>proof of work authentication</li> <li>ratelimiting and ip blacklisting</li> <li>web application firewall</li> </ul> <p dir="auto">(New) <a href="https://www.linkedin.com/feed/update/urn:li:ugcPost:6994133790017163264?updateEntityUrn=urn%3Ali%3Afs_updateV2%3A%28urn%3Ali%3AugcPost%3A6994133790017163264%2CFEED_DETAIL%2CEMPTY%2CDEFAULT%2Cfalse%29" rel="nofollow">Article on LinkedIn</a></p> <p dir="auto"><a href="https://youtu.be/zeNKUDR7_Jc" title="The Tool Box | PoW Shield" rel="nofollow">Featured on Pentester Academy TV</a></p> <p dir="auto"><a href="https://ruisiang.medium.com/pow-shield-application-layer-proof-of-work-ddos-filter-4fed32465509" title="PoW Shield: Application Layer Proof of Work DDoS Filter" rel="nofollow">Story on Medium</a></p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Features</h2><a id="user-content-features" class="anchor" aria-label="Permalink: Features" href="#features"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <ul dir="auto"> <li>Web Service Structure</li> <li>Proxy Functionality</li> <li>PoW Implementation</li> <li>Dockerization</li> <li>IP Blacklisting</li> <li>Ratelimiting</li> <li>Unit Testing</li> <li>WAF Implementation</li> <li>Multi-Instance Syncing (Redis)</li> <li>SSL Support</li> </ul> <p dir="auto">Supported via <a href="https://github.com/ruisiang/PoW-Phalanx">PoW Phalanx</a> controller:</p> <ul dir="auto"> <li>Multi-instance Management</li> <li>Whitelist tokens</li> <li>Blacklist IP syncing</li> <li>Dynamic difficulty control</li> <li>Dashboard</li> </ul> <p dir="auto">Alternate implementation in Go <a href="https://github.com/RuiSiang/Pow-Shield-Go">PoW-Shield-Go</a> (WIP) for stress testing purposes and future optimized production version.</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">How it Works</h2><a id="user-content-how-it-works" class="anchor" aria-label="Permalink: How it Works" href="#how-it-works"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">So basically, PoW Shield works as a proxy in front of the actual web app/service. It conducts verification via proof-of-work and only proxies authorized traffic through to the actual server. The proxy is easily installable, and is capable of protecting low security applications with a WAF.</p> <p dir="auto">Here’s what happens behind the scenes when a user browses a PoW Shield-protected webservice:</p> <ol dir="auto"> <li>The server generates a random hex-encoded “prefix” and sends it along with the PoW Shield page to the client.</li> <li>Browser JavaScript on the client side then attempts to brute-force a “nonce” that when appended with the prefix, can produce a SHA256 hash with the number of leading zero-bits more than the “difficulty” D specified by the server. i.e. SHA256(prefix + nonce)=0…0xxxx (binary, with more than D leading 0s)</li> <li>Client-side JavaScript then sends the calculated nonce to the server for verification, if verification passes, the server generates a cookie for the client to pass authentication.</li> <li>The server starts proxying the now authenticated client traffic to the server with WAF filtering enabled.</li> </ol> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Configuration</h2><a id="user-content-configuration" class="anchor" aria-label="Permalink: Configuration" href="#configuration"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">You can configure PoW Shield via the following methods.</p> <ul dir="auto"> <li>nodejs: .env (example: .env.example)</li> <li>docker-compose: docker-compose.yaml (example: docker-compose.example.yaml)</li> <li>docker run: -e parameter</li> </ul> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Environmental Variables</h3><a id="user-content-environmental-variables" class="anchor" aria-label="Permalink: Environmental Variables" href="#environmental-variables"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <markdown-accessiblity-table><table> <thead> <tr> <th>Variable</th> <th>Type</th> <th>Default</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td>PORT</td> <td>General</td> <td>3000</td> <td>port that PoW Shield listens to</td> </tr> <tr> <td>SESSION_KEY</td> <td>General</td> <td></td> <td>secret key for cookie signatures, use a unique one for security reasons, or anyone can forge your signed cookies</td> </tr> <tr> <td>BACKEND_URL</td> <td>General</td> <td></td> <td>location to proxy authenticated traffic to, IP and URLs are both accepted(accepts protocol://url(:port) or protocol://ip(:port))</td> </tr> <tr> <td>DATABASE_HOST</td> <td>Redis</td> <td>127.0.0.1</td> <td>redis service host</td> </tr> <tr> <td>DATABASE_PORT</td> <td>Redis</td> <td>6379</td> <td>redis service port</td> </tr> <tr> <td>DATABASE_PASSWORD</td> <td>Redis</td> <td>null</td> <td>redis service password</td> </tr> <tr> <td>POW</td> <td>PoW</td> <td>on</td> <td>toggles PoW functionality on/off (if not temporary switched off, why use this project at all?)</td> </tr> <tr> <td>NONCE_VALIDITY</td> <td>PoW</td> <td>60000</td> <td>specifies the maximum seconds a nonce has to be submitted to the server after generation(used to enforce difficulty change and filter out stale nonces)</td> </tr> <tr> <td>DIFFICULTY</td> <td>PoW</td> <td>13</td> <td>problem difficulty, number of leading 0-bits in produced hash (0:extremely easy ~ 256:impossible, 13(default) takes about 5 seconds for the browser to calculate)</td> </tr> <tr> <td>RATE_LIMIT</td> <td>Rate Limit</td> <td>on</td> <td>toggles ratelimit functionality on/off</td> </tr> <tr> <td>RATE_LIMIT_SAMPLE_MINUTES</td> <td>Rate Limit</td> <td>60</td> <td>specifies how many minutes until statistics reset for session/ip</td> </tr> <tr> <td>RATE_LIMIT_SESSION_THRESHOLD</td> <td>Rate Limit</td> <td>100</td> <td>number of requests that a single session can make until triggering token revocation</td> </tr> <tr> <td>RATE_LIMIT_BAN_IP</td> <td>Rate Limit</td> <td>on</td> <td>toggles ip banning functionality on/off</td> </tr> <tr> <td>RATE_LIMIT_IP_THRESHOLD</td> <td>Rate Limit</td> <td>500</td> <td>number of requests that a single session can make until triggering IP ban</td> </tr> <tr> <td>RATE_LIMIT_BAN_MINUTES</td> <td>Rate Limit</td> <td>15</td> <td>number of minutes that IP ban persists</td> </tr> <tr> <td>WAF</td> <td>WAF</td> <td>on</td> <td>toggles waf functionality on/off</td> </tr> <tr> <td>WAF_URL_EXCLUDE_RULES</td> <td>WAF</td> <td></td> <td>exclude rules to check when scanning request url, use ',' to seperate rule numbers, use '-' to specify a range (eg: 1,2-4,5,7-10)</td> </tr> <tr> <td>WAF_HEADER_EXCLUDE_RULES</td> <td>WAF</td> <td>14,33,80,96,100</td> <td>exclude rules to check when scanning request header, use ',' to seperate rule numbers, use '-' to specify a range (eg: 1,2-4,5,7-10)</td> </tr> <tr> <td>WAF_BODY_EXCLUDE_RULES</td> <td>WAF</td> <td></td> <td>exclude rules to check when scanning request body, use ',' to seperate rule numbers, use '-' to specify a range (eg: 1,2-4,5,7-10)</td> </tr> <tr> <td>SSL</td> <td>SSL</td> <td>off</td> <td>toggles SSL functionality on/off</td> </tr> <tr> <td>SSL_CERT_PATH</td> <td>SSL</td> <td>tests/ssl/mock-cert.pem</td> <td>path to SSL certificate password</td> </tr> <tr> <td>SSL_KEY_PATH</td> <td>SSL</td> <td>tests/ssl/mock-key.pem</td> <td>path to SSL key</td> </tr> <tr> <td>SOCKET</td> <td>Socket</td> <td>off</td> <td>toggles socket functionality on/off</td> </tr> <tr> <td>SOCKET_URL</td> <td>Socket</td> <td></td> <td>location of PoW Phalanx controller, IP and URLs are both accepted(accepts protocol://url:port or protocol://ip:port)</td> </tr> <tr> <td>SOCKET_TOKEN</td> <td>Socket</td> <td></td> <td>subscription token for PoW Phalanx controller</td> </tr> </tbody> </table></markdown-accessiblity-table> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Usage</h2><a id="user-content-usage" class="anchor" aria-label="Permalink: Usage" href="#usage"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Nodejs</h3><a id="user-content-nodejs" class="anchor" aria-label="Permalink: Nodejs" href="#nodejs"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="markdown-heading" dir="auto"><h4 tabindex="-1" class="heading-element" dir="auto">Prerequisites</h4><a id="user-content-prerequisites" class="anchor" aria-label="Permalink: Prerequisites" href="#prerequisites"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <ul dir="auto"> <li>Docker ^19.0.0</li> <li>Nodejs ^14.0.0</li> </ul> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="# Clone repository git clone https://github.com/RuiSiang/PoW-Shield.git # Install dependencies npm install # Configure settings cp -n .env.example .env # Edit .env nano .env # Transpile npm run build ############################################# # Run with db (redis), recommended & faster # # install redis first # # sudo apt-get install redis-server # ############################################# npm start ############################################# ############################################# # Run without db (mock redis) # ############################################# npm run start:standalone # linux npm run start:standalone-win # windows ############################################# # Test functionalities(optional) npm test "><pre><span class="pl-c"><span class="pl-c">#</span> Clone repository</span> git clone https://github.com/RuiSiang/PoW-Shield.git <span class="pl-c"><span class="pl-c">#</span> Install dependencies</span> npm install <span class="pl-c"><span class="pl-c">#</span> Configure settings</span> cp -n .env.example .env <span class="pl-c"><span class="pl-c">#</span> Edit .env</span> nano .env <span class="pl-c"><span class="pl-c">#</span> Transpile</span> npm run build <span class="pl-c"><span class="pl-c">#</span>############################################</span> <span class="pl-c"><span class="pl-c">#</span> Run with db (redis), recommended & faster #</span> <span class="pl-c"><span class="pl-c">#</span> install redis first #</span> <span class="pl-c"><span class="pl-c">#</span> sudo apt-get install redis-server #</span> <span class="pl-c"><span class="pl-c">#</span>############################################</span> npm start <span class="pl-c"><span class="pl-c">#</span>############################################</span> <span class="pl-c"><span class="pl-c">#</span>############################################</span> <span class="pl-c"><span class="pl-c">#</span> Run without db (mock redis) #</span> <span class="pl-c"><span class="pl-c">#</span>############################################</span> npm run start:standalone <span class="pl-c"><span class="pl-c">#</span> linux</span> npm run start:standalone-win <span class="pl-c"><span class="pl-c">#</span> windows</span> <span class="pl-c"><span class="pl-c">#</span>############################################</span> <span class="pl-c"><span class="pl-c">#</span> Test functionalities(optional)</span> npm <span class="pl-c1">test</span> </pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Docker (<a href="https://hub.docker.com/repository/docker/ruisiang/pow-shield" rel="nofollow">repo</a>)</h3><a id="user-content-docker-repo" class="anchor" aria-label="Permalink: Docker (repo)" href="#docker-repo"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="#################################################### # Docker run with db (redis), recommended & faster # #################################################### docker run -p 3000:3000 -e BACKEND_URL="http://example.com" -d ruisiang/pow-shield #################################################### #################################################### # Docker run without db (mock redis) # #################################################### docker run -p 3000:3000 -e BACKEND_URL="http://example.com" -e NODE_ENV="standalone" -d ruisiang/pow-shield #################################################### #################################################### # Docker Compose # #################################################### # Copy docker-compose.example.yaml cp -n docker-compose.example.yaml docker-compose.yaml # Edit docker-compose.yaml nano docker-compose.yaml # Start the container docker-compose -f docker-compose.yaml up ####################################################"><pre><span class="pl-c"><span class="pl-c">#</span>###################################################</span> <span class="pl-c"><span class="pl-c">#</span> Docker run with db (redis), recommended & faster #</span> <span class="pl-c"><span class="pl-c">#</span>###################################################</span> docker run -p 3000:3000 -e BACKEND_URL=<span class="pl-s"><span class="pl-pds">"</span>http://example.com<span class="pl-pds">"</span></span> -d ruisiang/pow-shield <span class="pl-c"><span class="pl-c">#</span>###################################################</span> <span class="pl-c"><span class="pl-c">#</span>###################################################</span> <span class="pl-c"><span class="pl-c">#</span> Docker run without db (mock redis) #</span> <span class="pl-c"><span class="pl-c">#</span>###################################################</span> docker run -p 3000:3000 -e BACKEND_URL=<span class="pl-s"><span class="pl-pds">"</span>http://example.com<span class="pl-pds">"</span></span> -e NODE_ENV=<span class="pl-s"><span class="pl-pds">"</span>standalone<span class="pl-pds">"</span></span> -d ruisiang/pow-shield <span class="pl-c"><span class="pl-c">#</span>###################################################</span> <span class="pl-c"><span class="pl-c">#</span>###################################################</span> <span class="pl-c"><span class="pl-c">#</span> Docker Compose #</span> <span class="pl-c"><span class="pl-c">#</span>###################################################</span> <span class="pl-c"><span class="pl-c">#</span> Copy docker-compose.example.yaml</span> cp -n docker-compose.example.yaml docker-compose.yaml <span class="pl-c"><span class="pl-c">#</span> Edit docker-compose.yaml</span> nano docker-compose.yaml <span class="pl-c"><span class="pl-c">#</span> Start the container</span> docker-compose -f docker-compose.yaml up <span class="pl-c"><span class="pl-c">#</span>###################################################</span></pre></div> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">Stress Test</h2><a id="user-content-stress-test" class="anchor" aria-label="Permalink: Stress Test" href="#stress-test"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Note: This only works on non-containerized version of PoW Shield, and that your system might experience unstability when running the test.</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="# Start the stress test npm run stress # If you changed the PORT variable in .env, you should also change the target variable in the stress test script nano scripts/stress.sh"><pre><span class="pl-c"><span class="pl-c">#</span> Start the stress test</span> npm run stress <span class="pl-c"><span class="pl-c">#</span> If you changed the PORT variable in .env, you should also change the target variable in the stress test script</span> nano scripts/stress.sh</pre></div> <p dir="auto"><em>The following tests are are conducted on a single thread of a i7-10870H CPU with a 60 second period for each concurrent parameter.</em></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Mass GET</h3><a id="user-content-mass-get" class="anchor" aria-label="Permalink: Mass GET" href="#mass-get"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <markdown-accessiblity-table><table> <thead> <tr> <th align="right">Concurrent Connections</th> <th align="right">Avg Latency</th> <th align="right">Error Rate</th> <th align="right">Requests/Second</th> </tr> </thead> <tbody> <tr> <td align="right">64</td> <td align="right">15.3ms</td> <td align="right">0.0000</td> <td align="right">4188</td> </tr> <tr> <td align="right">128</td> <td align="right">30.2ms</td> <td align="right">0.0000</td> <td align="right">4229</td> </tr> <tr> <td align="right">256</td> <td align="right">60.4ms</td> <td align="right">0.0000</td> <td align="right">4235</td> </tr> <tr> <td align="right">512</td> <td align="right">122.6ms</td> <td align="right">0.0142</td> <td align="right">4166</td> </tr> <tr> <td align="right">1024</td> <td align="right">261.7ms</td> <td align="right">0.1766</td> <td align="right">3894</td> </tr> <tr> <td align="right">2048</td> <td align="right">1966.5ms</td> <td align="right">0.4979</td> <td align="right">1027</td> </tr> <tr> <td align="right">4096</td> <td align="right">4685ms</td> <td align="right">0.7179</td> <td align="right">838</td> </tr> </tbody> </table></markdown-accessiblity-table> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Nonce Flood</h3><a id="user-content-nonce-flood" class="anchor" aria-label="Permalink: Nonce Flood" href="#nonce-flood"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <markdown-accessiblity-table><table> <thead> <tr> <th align="right">Concurrent Connections</th> <th align="right">Avg Latency</th> <th align="right">Error Rate</th> <th align="right">Requests/Second</th> </tr> </thead> <tbody> <tr> <td align="right">64</td> <td align="right">15.6ms</td> <td align="right">N/A</td> <td align="right">4094</td> </tr> <tr> <td align="right">128</td> <td align="right">31.5ms</td> <td align="right">N/A</td> <td align="right">4058</td> </tr> <tr> <td align="right">256</td> <td align="right">61.5ms</td> <td align="right">N/A</td> <td align="right">4159</td> </tr> <tr> <td align="right">512</td> <td align="right">129.5ms</td> <td align="right">N/A</td> <td align="right">3945</td> </tr> <tr> <td align="right">1024</td> <td align="right">264.4ms</td> <td align="right">N/A</td> <td align="right">3858</td> </tr> <tr> <td align="right">2048</td> <td align="right">592.1ms</td> <td align="right">N/A</td> <td align="right">3407</td> </tr> <tr> <td align="right">4096</td> <td align="right">1212.6ms</td> <td align="right">N/A</td> <td align="right">3322</td> </tr> </tbody> </table></markdown-accessiblity-table> <p dir="auto">From the above sample, we can see that the appropriate max load estimate for PoW Shield is around 512 concurrent connections. Error rates and latencies deteriorate beyond normal acceptance afterwards. Hence in a load-balanced environment on the machine (1 PoW Shield instance on each of it's 8 cores), it should be able to handle a maximum of approximately 4096 concurrent connections (clients) at a total request rate of 32k requests/second.</p> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">References</h2><a id="user-content-references" class="anchor" aria-label="Permalink: References" href="#references"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <ul dir="auto"> <li>Proof-of-work by Fedor Indutny (PoW utility functions)</li> <li>Shadowd by Zesecure (WAF rules)</li> </ul> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">License</h2><a id="user-content-license" class="anchor" aria-label="Permalink: License" href="#license"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">MIT</p> </article></div></div></div></div></div> <!-- --> <!-- --> <script type="application/json" id="__PRIMER_DATA_:R0:__">{"resolvedServerColorMode":"day"}</script></div> </react-partial> <input type="hidden" data-csrf="true" value="7/idJAgc2/gAmC4OxqYErqCzgGmpYkP38X3w41Y7VhfkGSrP4sAPJnxZhD6PxrMnD5/yv2psOaorv9lqGiPo5g==" /> </div> <div data-view-component="true" class="Layout-sidebar"> <div class="BorderGrid about-margin" data-pjax> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <div class="hide-sm hide-md"> <h2 class="mb-3 h4">About</h2> <p class="f4 my-3"> Project dedicated to fight Layer 7 DDoS with proof of work, with an additional WAF and controller. Completed with full set of features and containerized for rapid and lightweight deployment. </p> <div class="my-3 d-flex flex-items-center"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link flex-shrink-0 mr-2"> <path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path> </svg> <span class="flex-auto min-width-0 css-truncate css-truncate-target width-fit"> <a title="https://shield.rs.me" role="link" target="_blank" rel="noopener 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href="/contact/report-content?content_url=https%3A%2F%2Fgithub.com%2FRuiSiang%2FPoW-Shield&report=RuiSiang+%28user%29"> Report repository </a> </div> </div> </div> </div> <div class="BorderGrid-row"> <div class="BorderGrid-cell"> <h2 class="h4 mb-3" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame"> <a href="/RuiSiang/PoW-Shield/releases" data-view-component="true" class="Link--primary no-underline Link">Releases <span title="16" data-view-component="true" class="Counter">16</span></a></h2> <a class="Link--primary d-flex no-underline" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" href="/RuiSiang/PoW-Shield/releases/tag/v2.1.2"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-tag flex-shrink-0 mt-1 color-fg-success"> <path d="M1 7.775V2.75C1 1.784 1.784 1 2.75 1h5.025c.464 0 .91.184 1.238.513l6.25 6.25a1.75 1.75 0 0 1 0 2.474l-5.026 5.026a1.75 1.75 0 0 1-2.474 0l-6.25-6.25A1.752 1.752 0 0 1 1 7.775Zm1.5 0c0 .066.026.13.073.177l6.25 6.25a.25.25 0 0 0 .354 0l5.025-5.025a.25.25 0 0 0 0-.354l-6.25-6.25a.25.25 0 0 0-.177-.073H2.75a.25.25 0 0 0-.25.25ZM6 5a1 1 0 1 1 0 2 1 1 0 0 1 0-2Z"></path> </svg> <div class="ml-2 min-width-0"> <div class="d-flex"> <span class="css-truncate css-truncate-target text-bold mr-2" style="max-width: none;">PoW Shield V2.1.2</span> <span title="Label: Latest" data-view-component="true" class="Label Label--success flex-shrink-0"> Latest </span> </div> <div class="text-small color-fg-muted"><relative-time datetime="2023-04-13T10:02:06Z" class="no-wrap">Apr 13, 2023</relative-time></div> </div> </a> <div data-view-component="true" class="mt-3"> <a text="small" data-pjax="#repo-content-pjax-container" data-turbo-frame="repo-content-turbo-frame" href="/RuiSiang/PoW-Shield/releases" data-view-component="true" class="Link">+ 15 releases</a></div> </div> </div> <div class="BorderGrid-row" hidden> 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