<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>Pulsar Security Overview · Apache Pulsar</title><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta name="generator" content="Docusaurus"/><meta name="description" content="Apache Pulsar is the central message bus for a business. It is frequently used to store mission-critical data, and therefore enabling security features are crucial."/><meta name="docsearch:version" content="2.1.1-incubating"/><meta name="docsearch:language" content="en"/><meta property="og:title" content="Pulsar Security Overview · Apache Pulsar"/><meta property="og:type" content="website"/><meta property="og:url" content="https://pulsar.apache.org/"/><meta property="og:description" content="Apache Pulsar is the central message bus for a business. It is frequently used to store mission-critical data, and therefore enabling security features are crucial."/><meta name="twitter:card" content="summary"/><meta name="twitter:image" content="https://pulsar.apache.org/img/pulsar.svg"/><link rel="shortcut icon" href="/img/pulsar.ico"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/atom-one-dark.min.css"/><link rel="alternate" type="application/atom+xml" href="https://pulsar.apache.org/blog/atom.xml" title="Apache Pulsar Blog ATOM Feed"/><link rel="alternate" type="application/rss+xml" href="https://pulsar.apache.org/blog/feed.xml" title="Apache Pulsar Blog RSS Feed"/><link rel="stylesheet" href="/css/code-blocks-buttons.css"/><script type="text/javascript" src="https://buttons.github.io/buttons.js"></script><script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/2.0.0/clipboard.min.js"></script><script type="text/javascript" src="/js/custom.js"></script><script src="/js/scrollSpy.js"></script><link rel="stylesheet" href="/css/main.css"/><script src="/js/codetabs.js"></script></head><body class="sideNavVisible separateOnPageNav"><div class="fixedHeaderContainer"><div class="headerWrapper wrapper"><header><a href="/en"><img class="logo" src="/img/pulsar.svg" alt="Apache Pulsar"/></a><a href="/en/versions"><h3>2.1.1-incubating</h3></a><div class="navigationWrapper navigationSlider"><nav class="slidingNav"><ul class="nav-site nav-site-internal"><li class="siteNavGroupActive"><a href="/docs/en/2.1.1-incubating/getting-started-standalone" target="_self">Docs</a></li><li class=""><a href="/en/download" target="_self">Download</a></li><li class="siteNavGroupActive"><a href="/docs/en/2.1.1-incubating/client-libraries" target="_self">Clients</a></li><li class=""><a href="#restapis" target="_self">REST APIs</a></li><li class=""><a href="#cli" target="_self">Cli</a></li><li class=""><a href="/blog/" target="_self">Blog</a></li><li class=""><a href="#community" target="_self">Community</a></li><li class=""><a href="#apache" target="_self">Apache</a></li><li class=""><a href="https://pulsar-next.staged.apache.org/" target="_self">New Website (Beta)</a></li><span><li><a id="languages-menu" href="#"><img class="languages-icon" src="/img/language.svg" alt="Languages icon"/>English</a><div id="languages-dropdown" class="hide"><ul id="languages-dropdown-items"><li><a href="/docs/ja/2.1.1-incubating/security-overview">日本語</a></li><li><a href="/docs/fr/2.1.1-incubating/security-overview">Français</a></li><li><a href="/docs/ko/2.1.1-incubating/security-overview">한국어</a></li><li><a href="/docs/zh-CN/2.1.1-incubating/security-overview">中文</a></li><li><a href="/docs/zh-TW/2.1.1-incubating/security-overview">繁體中文</a></li><li><a href="https://crowdin.com/project/apache-pulsar" target="_blank" rel="noreferrer noopener">Help Translate</a></li></ul></div></li><script>
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href="/docs/en/2.1.1-incubating/administration-zk-bk">ZooKeeper and BookKeeper</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.1.1-incubating/administration-geo">Geo-replication</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.1.1-incubating/administration-dashboard">Dashboard</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.1.1-incubating/administration-stats">Pulsar statistics</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.1.1-incubating/administration-load-distribution">Load distribution</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.1.1-incubating/administration-proxy">Pulsar proxy</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Security</h3><ul class=""><li class="navListItem navListItemActive"><a class="navItem" href="/docs/en/2.1.1-incubating/security-overview">Overview</a></li><li class="navListItem"><a class="navItem" 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href="/docs/en/2.1.1-incubating/cookbooks-retention-expiry">Message retention and expiry</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.1.1-incubating/cookbooks-encryption">Encryption</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.1.1-incubating/cookbooks-message-queue">Message queue</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Development</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/2.1.1-incubating/develop-tools">Simulation tools</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.1.1-incubating/developing-binary-protocol">Binary protocol</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.1.1-incubating/develop-schema">Custom schema storage</a></li><li class="navListItem"><a class="navItem" href="/docs/en/2.1.1-incubating/develop-load-manager">Modular load manager</a></li><li class="navListItem"><a class="navItem" 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        </script></nav></div><div class="container mainContainer docsContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/apache/pulsar/edit/master/site2/docs/security-overview.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 id="__docusaurus" class="postHeaderTitle">Pulsar Security Overview</h1></header><article><div><span><p>Apache Pulsar is the central message bus for a business. It is frequently used to store mission-critical data, and therefore enabling security features are crucial.</p>
<p>By default, there is no encryption, authentication, or authorization configured. Any client can communicate to Apache Pulsar via plain text service urls.
It is critical that access via these plain text service urls is restricted to trusted clients only. Network segmentation and/or authorization ACLs can be used
to restrict access to trusted IPs in such cases. If neither is used, the cluster is wide open and can be accessed by anyone.</p>
<p>Pulsar supports a pluggable authentication mechanism that Pulsar clients can use to authenticate with brokers and proxies. Pulsar
can also be configured to support multiple authentication sources.</p>
<p>It is strongly recommended to secure the service components in your Apache Pulsar deployment.</p>
<h2><a class="anchor" aria-hidden="true" id="role-tokens"></a><a href="#role-tokens" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Role Tokens</h2>
<p>In Pulsar, a <em>role</em> is a string, like <code>admin</code> or <code>app1</code>, that can represent a single client or multiple clients. Roles are used to control permission for clients
to produce or consume from certain topics, administer the configuration for tenants, and more.</p>
<p>Apache Pulsar uses a <a href="#authentication-providers">Authentication Provider</a> to establish the identity of a client and then assign that client a <em>role token</em>. This
role token is then used for <a href="/docs/en/2.1.1-incubating/security-authorization">Authorization and ACLs</a> to determine what the client is authorized to do.</p>
<h2><a class="anchor" aria-hidden="true" id="authentication-providers"></a><a href="#authentication-providers" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Authentication Providers</h2>
<p>Currently Pulsar supports two authentication providers:</p>
<ul>
<li><a href="/docs/en/2.1.1-incubating/security-tls-authentication">TLS Authentication</a></li>
<li><a href="/docs/en/2.1.1-incubating/security-athenz">Athenz</a></li>
</ul>
<h2><a class="anchor" aria-hidden="true" id="contents"></a><a href="#contents" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Contents</h2>
<ul>
<li><a href="/docs/en/2.1.1-incubating/security-tls-transport">Encryption</a> and <a href="/docs/en/2.1.1-incubating/security-tls-authentication">Authentication</a> using TLS</li>
<li><a href="/docs/en/2.1.1-incubating/security-athenz">Authentication using Athenz</a></li>
<li><a href="/docs/en/2.1.1-incubating/security-authorization">Authorization and ACLs</a></li>
<li><a href="/docs/en/2.1.1-incubating/security-encryption">End-to-End Encryption</a></li>
</ul>
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/en/2.1.1-incubating/administration-proxy"><span class="arrow-prev">← </span><span>Pulsar proxy</span></a><a class="docs-next button" href="/docs/en/2.1.1-incubating/security-tls-transport"><span>Transport Encryption using TLS</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#role-tokens">Role Tokens</a></li><li><a href="#authentication-providers">Authentication Providers</a></li><li><a href="#contents">Contents</a></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="copyright">Copyright © 2022 The Apache Software Foundation. All Rights Reserved. Apache, Apache Pulsar and the Apache feather logo are trademarks of The Apache Software Foundation.</section><span><script>
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