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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>Firewall & Port Forwarding · CaptainDuckDuck</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta property="og:title" content="Firewall & Port Forwarding · CaptainDuckDuck"/><meta property="og:type" content="website"/><meta property="og:url" content="https://www.captainduckduck.com/index.html"/><meta property="og:description" content="<br/>"/><meta property="og:image" content="https://www.captainduckduck.com/img/captainduckduck.png"/><meta name="twitter:card" content="summary"/><meta name="twitter:image" content="https://www.captainduckduck.com/img/captainduckduck.png"/><link rel="shortcut icon" href="/img/favicon.ico"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/default.min.css"/><script type="text/javascript" src="https://buttons.github.io/buttons.js"></script><link rel="stylesheet" href="/css/main.css"/></head><body class="sideNavVisible doc separateOnPageNav"><div class="fixedHeaderContainer"><div class="headerWrapper wrapper"><header><a href="/"><img class="logo" src="/img/captainduckduck.png" alt="CaptainDuckDuck"/><h2 class="headerTitleWithLogo">CaptainDuckDuck</h2></a><div class="navigationWrapper navigationSlider"><nav class="slidingNav"><ul class="nav-site nav-site-internal"><li class="siteNavGroupActive"><a href="/docs/get-started.html" target="_self">Docs</a></li><li class=""><a href="https://github.com/githubsaturn/captainduckduck" target="_self">GitHub</a></li></ul></nav></div></header></div></div><div class="navPusher"><div class="docMainWrapper wrapper"><div class="container docsNavContainer" id="docsNav"><nav class="toc"><div class="toggleNav"><section class="navWrapper wrapper"><div class="navBreadcrumb wrapper"><div class="navToggle" id="navToggler"><i></i></div><h2><i>›</i><span>Help</span></h2></div><div class="navGroups"><div class="navGroup navGroupActive"><h3>Basics</h3><ul><li class="navListItem"><a class="navItem" href="/docs/get-started.html">Getting Started</a></li><li class="navListItem"><a class="navItem" href="/docs/captain-definition-file.html">Captain Definition File</a></li><li class="navListItem"><a class="navItem" href="/docs/deployment-methods.html">Deployment Methods</a></li><li class="navListItem"><a class="navItem" href="/docs/app-configuration.html">App Configuration</a></li><li class="navListItem"><a class="navItem" href="/docs/complete-webapp-tutorial.html">Complete Webapp Tutorial</a></li></ul></div><div class="navGroup navGroupActive"><h3>Do More</h3><ul><li class="navListItem"><a class="navItem" href="/docs/enabling-https.html">Enabling HTTPS</a></li><li class="navListItem"><a class="navItem" href="/docs/one-click-apps.html">One-Click Apps</a></li><li class="navListItem"><a class="navItem" href="/docs/resource-monitoring.html">Resource Monitoring</a></li><li class="navListItem"><a class="navItem" href="/docs/nginx-customization.html">NGINX Config</a></li><li class="navListItem"><a class="navItem" href="/docs/app-scaling-and-cluster.html">App Scaling & Cluster</a></li><li class="navListItem"><a class="navItem" href="/docs/pre-deploy-script.html">Pre-deploy Script</a></li><li class="navListItem"><a class="navItem" href="/docs/run-locally.html">Run Locally</a></li></ul></div><div class="navGroup navGroupActive"><h3>Help</h3><ul><li class="navListItem"><a class="navItem" href="/docs/server-purchase.html">Server Purchase</a></li><li class="navListItem"><a class="navItem" href="/docs/disk-cleanup.html">Disk Clean-Up</a></li><li class="navListItem navListItemActive"><a class="navItem navItemActive" href="/docs/firewall.html">Firewall & Port Forwarding</a></li><li class="navListItem"><a class="navItem" href="/docs/troubleshooting.html">Troubleshooting</a></li></ul></div></div></section></div><script>
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</script></nav></div><div class="container mainContainer"><div class="wrapper"><div class="post"><header class="postHeader"><h1>Firewall & Port Forwarding</h1></header><article><div><span><p><br/></p>
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<p>Captain uses:</p>
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<ul>
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<li>80 TCP for regular HTTP connections</li>
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<li>443 TCP for secure HTTPS connections</li>
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<li>3000 TCP for initial Captain Installation (can be blocked once Captain is attached to a domain)</li>
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<li>7946 TCP/UDP for Container Network Discovery</li>
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<li>4789 TCP/UDP for Container Overlay Network</li>
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<li>2377 TCP/UDP for Docker swarm API</li>
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<li>996 TCP for secure HTTPS connections specific to Docker Registry</li>
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</ul>
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<p>Or simply disable firewall entirely. In case of an ubuntu server, run <code>ufw disable</code>.</p>
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<p>Also, if you are using Port Mapping to allow external connections, for example from your laptop to a MySQL instance on Captain, you will have to add the corresponding port to the exclusion as well.</p>
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</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="disk-cleanup.html">← Disk Clean-Up</a><a class="docs-next button" href="troubleshooting.html">Troubleshooting →</a></div></div></div><nav class="onPageNav"></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><a href="/" class="nav-home"><img src="/img/captainduckduck.png" alt="CaptainDuckDuck" width="66" height="58"/></a><div><h5>Docs</h5><a href="/docs/en/get-started.html">Getting Started</a></div><div><h5>Community</h5><a href="https://twitter.com/search?vertical=default&q=captainduckduck&src=typd" target="_blank" rel="noreferrer noopener">Twitter</a></div><div><h5>More</h5><a href="https://github.com/githubsaturn/captainduckduck" target="_blank">GitHub</a><a class="github-button" href="https://github.com/githubsaturn/captainduckduck" data-icon="octicon-star" data-count-href="/githubsaturn/captainduckduck/stargazers" data-show-count="true" data-count-aria-label="# stargazers on GitHub" aria-label="Star this project on GitHub">Star</a></div></section><section class="copyright">Copyright © 2018 githubsaturn</section></footer></div></body></html> |