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88 lines
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6 months ago
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<link rel="icon" href="/images/favicon.ico"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta property="og:title" content="Arthas"><meta property="og:image:alt" content="Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas: Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas"><meta property="og:image" content="/images/arthas_mate_image.png"><meta property="og:description" content="Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas: Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas"><meta property="og:image:width" content="1200"><meta property="og:image:height" content="600"><meta property="twitter:image:src" content="/images/arthas_mate_image.png"><meta property="twitter:image:alt" content="Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas: Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas"><meta itemprop="name" content="Arthas"><meta itemprop="image" content="/images/arthas_mate_image.png"><meta itemprop="description" content="Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas: Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas"><script>
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</script><meta name="aes-config" content="pid=xux-opensource&user_type=101&uid=&username=&dim10=arthas"><script src="//g.alicdn.com/alilog/mlog/aplus_v2.js" id="beacon-aplus" exparams="clog=o&aplus&sidx=aplusSidx&ckx=aplusCkx"></script><script src="//g.alicdn.com/aes/??tracker/1.0.34/index.js,tracker-plugin-pv/2.4.5/index.js,tracker-plugin-event/1.2.5/index.js,tracker-plugin-jserror/1.0.13/index.js,tracker-plugin-api/1.1.14/index.js,tracker-plugin-perf/1.1.8/index.js,tracker-plugin-eventTiming/1.0.4/index.js"></script><title>Arthas Tunnel | arthas</title><meta name="description" content="arthas user document">
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<link rel="modulepreload" href="/3.x/assets/app.4d248835.js"><link rel="modulepreload" href="/3.x/assets/tunnel.html.d20e61ab.js"><link rel="modulepreload" href="/3.x/assets/tunnel-server-agents.03d5eafa.js"><link rel="modulepreload" href="/3.x/assets/tunnel.html.203ccf1d.js"><link rel="prefetch" href="/3.x/assets/index.html.6c4675e2.js"><link rel="prefetch" href="/3.x/assets/index.html.636fad3d.js"><link rel="prefetch" href="/3.x/assets/advanced-use.html.94d49710.js"><link rel="prefetch" href="/3.x/assets/advice-class.html.0e371faa.js"><link rel="prefetch" href="/3.x/assets/agent.html.2c661add.js"><link rel="prefetch" href="/3.x/assets/arthas-properties.html.c6a378d8.js"><link rel="prefetch" href="/3.x/assets/arthas3.html.f5096367.js"><link rel="prefetch" href="/3.x/assets/async.html.08408f7f.js"><link rel="prefetch" href="/3.x/assets/auth.html.0cae929d.js"><link rel="prefetch" href="/3.x/assets/base64.html.e5a32bd6.js"><link rel="prefetch" href="/3.x/assets/batch-support.html.acbd1eb9.js"><link rel="prefetch" href="/3.x/assets/cat.html.79af7693.js"><link rel="prefetch" href="/3.x/assets/classloader.html.5b255ef1.js"><link rel="prefetch" href="/3.x/assets/cls.html.9332bbdf.js"><link rel="prefetch" href="/3.x/assets/commands.html.e2567b24.js"><link rel="prefetch" href="/3.x/assets/contact-us.html.6d0fe4e6.js"><link rel="prefetch" href="/3.x/assets/dashboard.html.c7a97553.js"><link rel="prefetch" href="/3.x/assets/docker.html.030cca04.js"><link rel="prefetch" href="/3.x/assets/download.html.b853bfd7.js"><link rel="prefetch" href="/3.x/assets/dump.html.3f441711.js"><link rel="prefetch" href="/3.x/assets/echo.html.239528da.js"><link rel="prefetch" href="/3.x/assets/faq.html.abd28b1f.js"><link rel="prefetch" href="/3.x/assets/getstatic.html.2229049b.js"><link rel="prefetch" href="/3.x/assets/grep.html.4aa91236.js"><link rel="prefetch" href="/3.x/assets/groovy.html.21de60b6.js"><link rel="prefetch" href="/3.x/assets/heapdump.html.3fe356b2.js"><link rel="prefetch" href="/3.x/assets/help.html.7ba26453.js"><link rel="prefetch" href="/3.x/assets/history.html.5c8da1d4.js"><link rel="prefetch" href="/3.x/assets/http-api.html.f5e81364.js"><link rel="prefetch" href="/3.x/assets/idea-plugin.html.d7acd139.js"><link rel="prefetch" href="/3.x/assets/install-detail.html.0c410a89.js"><link rel="prefetch" href="/3.x/assets/jad.html.d639a8bb.js"><link rel="prefetch" href="/3.x/assets/jfr.html.e858c4d3.js"><link rel="prefetch" href="/3.x/assets/jvm.html.a00151a5.js"><link rel="prefetch" href="/3.x/assets/keymap.html.e3647cfd.js"><link rel="prefetch" href="/3.x/assets/logger.html.7a983455.js"><link rel="prefetch" href="/3.x/assets/manual-install.html.09d3b86a.js"><link rel="prefetch" href="/3.x/assets/mbean.html.555cb2c7.js"><link rel="prefetch" href="/3.x/assets/mc.html.70645c5e.js"><link rel="prefetch" href="/3.x/assets/memory.html.078c4658.js"><link rel="prefetch" href="/3.x/assets/monitor.html.d6717549.js"><link rel="prefetch" href="/3.x/assets/ognl.html.a04123af.js"><link rel="prefetch" href="/3.x/assets/options.html.76f0ad11.js"><link rel="prefetch" href="/3.x/assets/perfcounter.html.a2008d46.js"><link rel="prefetch" href="/3.x/assets/profiler.html.2fe5463f.js"><link rel="prefetch" href="/3.x/assets/pwd.html.b8813280.js"><link rel="prefetch" href="/3.x/assets/quick-start.html.463266ab.js"><link rel="prefetch" href="/3.x/assets/quit.html.052c6b91.js"><link rel="prefetch" href="/3.x/assets/redefine.html.a2b54a14.js"><link rel="prefetch" href="/3.x/assets/release-notes.html.bd30f66e.js"><link rel="prefetch" href="/3.x/assets/reset.html.d6cfba7b.js"><link rel="prefetch" href="/3.x/assets/retransform.html.8eba17c2.js"><link rel="prefetch" href="/3.x/assets/save-log.html.1848baa1.js"><link rel="prefetch" href="/3.x/assets/sc.html.74c76d3a.js"><link rel="prefetch" href="/3.x/assets/session.html.5c4eabed.js"><link rel="prefetch" href="/3.x/assets/sm.html.e7e61e0b.js"><link rel="prefetch" href="/3.x/assets/spring-boot-starter.html.f437e222.js"><link rel="prefetch" href="/3.x/assets/stack.html.6561e199.js"><link rel="prefetch" href="/3.x/asse
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<div id="app"><!--[--><div class="theme-container"><!--[--><header class="navbar"><div class="toggle-sidebar-button" title="toggle sidebar" aria-expanded="false" role="button" tabindex="0"><div class="icon" aria-hidden="true"><span></span><span></span><span></span></div></div><span><a href="/3.x/en/" class="" data-v-a8869d06><!----><span class="site-name can-hide" data-v-a8869d06>arthas</span><span class="navbar-version" data-v-a8869d06>v3.7.3</span></a></span><div class="navbar-items-wrapper" style=""><!--[--><!--]--><nav class="navbar-items can-hide"><!--[--><div class="navbar-item"><a href="/3.x/en/" class="" aria-label="HOME"><!--[--><!--]--> HOME <!--[--><!--]--></a></div><div class="navbar-item"><a class="external-link" href="/doc/arthas-tutorials.html?language=en&id=arthas-basics" rel="noopener noreferrer" target="_blank" aria-label="ONLINE TUTORIALS"><!--[--><!--]--><span>ONLINE TUTORIALS</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span><!--[--><!--]--></a></div><div class="navbar-item"><a href="/3.x/en/doc" class="router-link-active" aria-label="DOCS"><!--[--><!--]--> DOCS <!--[--><!--]--></a></div><div class="navbar-item"><a href="/3.x/en/doc/commands.md" class="" aria-label="COMMANDS"><!--[--><!--]--> COMMANDS <!--[--><!--]--></a></div><div class="navbar-item"><a href="/3.x/en/doc/download.md" class="" aria-label="DOWNLOAD"><!--[--><!--]--> DOWNLOAD <!--[--><!--]--></a></div><div class="navbar-item"><div class="navbar-dropdown-wrapper"><button class="navbar-dropdown-title" type="button" aria-label="VERSIONS"><span class="title">VERSIONS</span><span class="arrow down"></span></button><button class="navbar-dropdown-title-mobile" type="button" aria-label="VERSIONS"><span class="title">VERSIONS</span><span class="right arrow"></span></button><ul style="display:none;" class="navbar-dropdown"><!--[--><li class="navbar-dropdown-item"><a class="external-link" href="https://arthas.aliyun.com/en/" rel="noopener noreferrer" target="_blank" aria-label="v4.x"><!--[--><!--]--><span>v4.x</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span><!--[--><!--]--></a></li><!--]--></ul></div></div><div class="navbar-item"><div class="navbar-dropdown-wrapper"><button class="navbar-dropdown-title" type="button" aria-label="Select language"><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1em" height="1em" style="height:1.25rem;width:1.25rem;vertical-align:bottom;" viewbox="0 0 24 24"><path fill="currentColor" d="M13.35 22q-.6 0-.862-.387q-.263-.388-.063-.963l3.65-9.675q.15-.4.563-.688Q17.05 10 17.5 10q.425 0 .85.287q.425.288.575.688l3.65 9.675q.2.575-.062.963q-.263.387-.888.387q-.275 0-.5-.175q-.225-.175-.325-.425l-.85-2.45H15.1l-.875 2.45q-.1.25-.35.425q-.25.175-.525.175Zm2.35-4.8h3.6l-1.75-4.95h-.1ZM7.15 8.55q.4.725.85 1.337q.45.613 1.05 1.263q1.1-1.2 1.825-2.462Q11.6 7.425 12.1 6H2q-.425 0-.712-.287Q1 5.425 1 5t.288-.713Q1.575 4 2 4h6V3q0-.425.288-.713Q8.575 2 9 2t.713.287Q10 2.575 10 3v1h6q.425 0 .712.287Q17 4.575 17 5t-.288.713Q16.425 6 16 6h-1.9q-.525 1.775-1.425 3.45q-.9 1.675-2.225 3.15l2.4 2.45l-.75 2.0
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>By default, the web port of the arthas tunnel server is <code>8080</code>, and the port connected by the arthas agent is <code>7777</code>.</p><p>Once started, you can go to <a href="http://127.0.0.1:8080/" target="_blank" rel="noopener noreferrer">http://127.0.0.1:8080/<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a> and connect to the registered arthas agent via <code>agentId</code>.</p><p>Through Spring Boot's Endpoint, you can view the specific connection information: <a href="http://127.0.0.1:8080/actuator/arthas" target="_blank" rel="noopener noreferrer">http://127.0.0.1:8080/actuator/arthas<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a>, the login user name is <code>arthas</code>, and the password can be found in the log of arthas tunnel server, for example:</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>32851 [main] INFO o.s.b.a.s.s.UserDetailsServiceAutoConfiguration
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Using generated security password: f1dca050-3777-48f4-a577-6367e55a78a2
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="connecting-to-the-tunnel-server-when-starting-arthas" tabindex="-1"><a class="header-anchor" href="#connecting-to-the-tunnel-server-when-starting-arthas" aria-hidden="true">#</a> Connecting to the tunnel server when starting arthas</h2><p>When starting arthas, you can use the <code>--tunnel-server</code> parameter, for example:</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>as3.sh --tunnel-server <span class="token string">'ws://127.0.0.1:7777/ws'</span>
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>You can also use the following test address (not guaranteed to be available all the time):</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>as3.sh --tunnel-server <span class="token string">'ws://47.75.156.201:80/ws'</span>
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li>You can specify the agentId by the <code>--agent-id</code> parameter. By default, a random ID is generated.</li></ul><p>After Arthas attach succeeds, the agentId will be printed, such as:</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code> ,---. ,------. ,--------.,--. ,--. ,---. ,---.
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/ O <span class="token punctuation">\</span> <span class="token operator">|</span> .--. <span class="token string">''</span>--. .--<span class="token string">'| '</span>--<span class="token string">' | / O \ '</span> .-<span class="token string">'
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| .-. || '</span>--<span class="token string">'.'</span> <span class="token operator">|</span> <span class="token operator">|</span> <span class="token operator">|</span> .--. <span class="token operator">||</span> .-. <span class="token operator">|</span><span class="token variable"><span class="token variable">`</span><span class="token builtin class-name">.</span> <span class="token variable">`</span></span>-.
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<span class="token operator">|</span> <span class="token operator">|</span> <span class="token operator">|</span> <span class="token operator">||</span> <span class="token operator">|</span><span class="token punctuation">\</span> <span class="token punctuation">\</span> <span class="token operator">|</span> <span class="token operator">|</span> <span class="token operator">|</span> <span class="token operator">|</span> <span class="token operator">|</span> <span class="token operator">||</span> <span class="token operator">|</span> <span class="token operator">|</span> <span class="token operator">|</span>.-<span class="token string">' |
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`--'</span> <span class="token variable"><span class="token variable">`</span>--'<span class="token variable">`</span></span>--<span class="token string">' '</span>--<span class="token string">' `--'</span> <span class="token variable"><span class="token variable">`</span>--' <span class="token variable">`</span></span>--<span class="token string">'`--'</span> <span class="token variable"><span class="token variable">`</span>--'<span class="token variable">`</span></span>-----'
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wiki https://arthas.aliyun.com/3.x/doc
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tutorials https://arthas.aliyun.com/3.x/doc/arthas-tutorials.html
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version <span class="token number">3.1</span>.2
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pid <span class="token number">86183</span>
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<span class="token function">time</span> <span class="token number">2019</span>-08-30 <span class="token number">15</span>:40:53
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<span class="token function">id</span> URJZ5L48RPBR2ALI5K4V
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>If the connection is not connected to the tunnel server at startup, you can also obtain the agentId through the <code>session</code> command after reconnection succeeds:</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code><span class="token punctuation">[</span>arthas@86183<span class="token punctuation">]</span>$ session
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Name Value
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-----------------------------------------------------
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JAVA_PID <span class="token number">86183</span>
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SESSION_ID f7273eb5-e7b0-4a00-bc5b-3fe55d741882
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AGENT_ID URJZ5L48RPBR2ALI5K4V
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TUNNEL_SERVER ws://47.75.156.201:80/ws
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>For the above example, go to <a href="http://47.75.156.201/arthas/?port=80" target="_blank" rel="noopener noreferrer">http://47.75.156.201/arthas/?port=80<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a> in the browser and input the <code>agentId</code> to connect to arthas on remote machine.</p><p><img src="/3.x/images/arthas-tunnel-server.png" alt=""></p><h2 id="best-practices" tabindex="-1"><a class="header-anchor" href="#best-practices" aria-hidden="true">#</a> Best practices</h2><div class="custom-container warning"><p class="custom-container-title">WARNING</p><p>Note that the agentId must be unique, otherwise it will conflict on the tunnel server and not work properly.</p></div><p>If the arthas agent is configured with <code>appName</code>, the generated agentId will be prefixed with <code>appName</code>.</p><p>For example, if you add the startup parameter <code>as3.sh --tunnel-server 'ws://127.0.0.1:7777/ws' --app-name demoapp</code>, the generated agentId might be <code>demoapp_URJZ5L48RPBR2ALI5K4V</code>.</p><p>Tunnel server will use <code>_</code> as a delimiter to extract <code>appName</code>, which is convenient to manage by application.</p><div class="custom-container tip"><p class="custom-container-title">TIP</p><p>Alternatively, you can configure <code>appName</code> in <code>arthas.properties</code> in the unzipped arthas directory, or in <code>application.properties</code> of the spring boot application.</p></div><h2 id="tunnel-server-management-page" tabindex="-1"><a class="header-anchor" href="#tunnel-server-management-page" aria-hidden="true">#</a> Tunnel Server Management Page</h2><div class="custom-container tip"><p class="custom-container-title">TIP</p><p>Need to configure <code>arthas.enable-detail-pages=true</code> in <code>application.properties</code> of spring boot</p><p><strong>Attention, opening admin pages is risky! There is no security blocking function on the management page, you must add security measures by yourself.</strong></p></div><p>Start the tunnel-server locally, then use <code>as3.sh</code> attach, and specify the application name <code>--app-name test</code>:</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>$ as3.sh --tunnel-server 'ws://127.0.0.1:7777/ws' --app-name test
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telnet connecting to arthas server... current timestamp is 1627539688
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Trying 127.0.0.1...
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Connected to 127.0.0.1.
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Escape character is '^]'.
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,---. ,------. ,--------.,--. ,--. ,---. ,---.
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/ O \ | .--. ''--. .--'| '--' | / O \ ' .-'
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`--' `--'`--' '--' `--' `--' `--'`--' `--'`-----'
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wiki https://arthas.aliyun.com/3.x/doc
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tutorials https://arthas.aliyun.com/3.x/doc/arthas-tutorials.html
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version 3.5.3
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main_class demo.MathGame
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pid 65825
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time 2021-07-29 14:21:29
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id test_PE3LZO9NA9ENJYTPGL9L
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>Then visit tunnel-server, you can see a list of all connected applications:</p><p><a href="http://localhost:8080/apps.html" target="_blank" rel="noopener noreferrer">http://localhost:8080/apps.html<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a></p><p><img src="/3.x/images/tunnel-server-apps.png" alt=""></p><p>Then open the details, you can see a list of all connected agents:</p><p><a href="http://localhost:8080/agents.html?app=test" target="_blank" rel="noopener noreferrer">http://localhost:8080/agents.html?app=test<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a></p><p><img src="/3.x/images/tunnel-server-agents.png" alt=""></p><h2 id="security-and-privilege-management" tabindex="-1"><a class="header-anchor" href="#security-and-privilege-management" aria-hidden="true">#</a> Security and Privilege Management</h2><div class="custom-container tip"><p class="custom-container-title">TIP</p><p><strong>It is strongly recommended not to expose the tunnel server directly to the public network.</strong></p></div><p>Currently tunnel server does not have special permission management</p><ol><li>Users need to develop by themselves and authenticate the app name.</li><li>If the management page is opened, security measures need to be added.</li></ol><h2 id="cluster-management" tabindex="-1"><a class="header-anchor" href="#cluster-management" aria-hidden="true">#</a> Cluster Management</h2><p>If you want to deploy multiple tunnel servers, you can use nginx for forwarding and redis to store agent information.</p><p>Nginx needs to configure sticky session to ensure that the user's web socket is connected to the same back-end tunnel server. The simple configuration method is to use <code>ip_hash</code>.</p><h2 id="how-arthas-tunnel-server-works" tabindex="-1"><a class="header-anchor" href="#how-arthas-tunnel-server-works" aria-hidden="true">#</a> How arthas tunnel server works</h2><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>browser <-> arthas tunnel server <-> arthas tunnel client <-> arthas agent
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p><a href="https://github.com/alibaba/arthas/blob/master/tunnel-server/README.md#" target="_blank" rel="noopener noreferrer">tunnel-server/README.md<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a></p></div><!--[--><!--]--></div><footer class="page-meta right-menu-padding" data-v-fdd717e0><div class="meta-item edit-link"><a class="external-link meta-item-label" href="https://github.com/alibaba/arthas/edit/master/site/docs/en/doc/tunnel.md" rel="noopener noreferrer" target="_blank" aria-label="Edit this page on GitHub"><!--[--><!--]--><span>Edit this page on GitHub</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span><!--[--><!--]--></a></div><div class="meta-item last-updated"><span class="meta-item-label">Last Updated: </span><!----></div><div class="meta-item contributors"><span class="meta-item-label">Contributors: </span><span class="meta-item-info"><!--[--><!--[--><span class="contributor" title="email: hengyunabc@gmail.com">hengyunabc</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: hengyunabc@users.noreply.github.com">hengyunabc</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: i@fatpandac.com">Fatpandac</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: anrun388@gmail.com">SiuHui</span><!----><!--]--><!--]--></span></div></footer><nav class="page-nav right-menu-padding" data-v-fdd717e0><p class="inner"><span class="prev"><a href="/3.x/en/doc/web-console.html" class="" aria-label="Web Console"><!--[--><!--]--> Web Console <!--[--><!--]--></a></span><span class="next"><a href="/3.x/en/doc/idea-plugin.html" class="" aria-label="IDEA Plugin"><!--[--><!--]--> IDEA Plugin <!--[--><!--]--></a></span></p></nav><!--[--><!--]--></main><!--]--></div><!----><!--]--></div>
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