<!doctype html><htmllang=enclass=no-js><head><metacharset=utf-8><metaname=viewportcontent="width=device-width,initial-scale=1"><metaname=descriptioncontent="[Ddclient](https://github.com/ddclient/ddclient) is a Perl client used to update dynamic DNS entries for accounts on Dynamic DNS Network Service Provider. It was originally written by Paul Burry and is now mostly by wimpunk. It has the capability to update more than just dyndns and it can fetch your WAN-ipaddress in a few different ways."><metaname=authorcontent=LinuxServer.io><linkhref=https://docs.linuxserver.io/images/docker-ddclient/rel=canonical><linkhref=../docker-davos/rel=prev><linkhref=../docker-deluge/rel=next><linkrel=iconhref=../../assets/favicon.ico><metaname=generatorcontent="mkdocs-1.6.1, mkdocs-material-9.5.50"><title>ddclient - LinuxServer.io</title><linkrel=stylesheethref=../../assets/stylesheets/main.a40c8224.min.css><linkrel=stylesheethref=../../assets/stylesheets/palette.06af60db.min.css><linkrel=preconnecthref=https://fonts.gstatic.comcrossorigin><linkrel=stylesheethref="https://fonts.googleapis.com/css?family=Roboto:300,300i,400,400i,700,700i%7CRoboto+Mono:400,400i,700,700i&display=fallback"><style>:root{--md-text-font:"Roboto";--md-code-font:"Roboto Mono"}</style><linkrel=stylesheethref=../../stylesheets/extra.css><linkrel=stylesheethref=../../assets/stylesheets/mkdocs_d2_plugin.css><script>__md_scope=newURL("../..",location),__md_hash=e=>[...e].reduce(((e,_)=>(e<<5)-e+_.charCodeAt(0)),0),__md_get=(e,_=localStorage,t=__md_scope)=>JSON.parse(_.getItem(t.pathname+"."+e)),__md_set=(e,_,t=localStorage,a=__md_scope)=>{try{t.setItem(a.pathname+"."+e,JSON.stringify(_))}catch(e){}}</script></head><bodydir=ltrdata-md-color-scheme=defaultdata-md-color-primary=purpledata-md-color-accent=indigo><inputclass=md-toggledata-md-toggle=drawertype=checkboxid=__drawerautocomplete=off><inputclass=md-toggledata-md-toggle=searchtype=checkboxid=__searchautocomplete=off><labelclass=md-overlayfor=__drawer></label><divdata-md-component=skip><ahref=#linuxserverddclientclass=md-skip> Skip to content </a></div><divdata-md-component=announce></div><headerclass=md-headerdata-md-component=header><navclass="md-header__inner md-grid"aria-label=Header><ahref=../..title=LinuxServer.ioclass="md-header__button md-logo"aria-label=LinuxServer.iodata-md-component=logo><imgsrc=../../assets/icon.svgalt=logo></a><labelclass="md-header__button md-icon"for=__drawer><svgxmlns=http://www.w3.org/2000/svgviewbox="0 0 24 24"><pathd="M3 6h18v2H3zm0 5h18v2H3zm0 5h18v2H3z"/></svg></label><divclass=md-header__titledata-md-component=header-title><divclass=md-header__ellipsis><divclass=md-header__topic><spanclass=md-ellipsis> LinuxServer.io </span></div><divclass=md-header__topicdata-md-component=header-topic><spanclass=md-ellipsis> ddclient </span></div></div></div><formclass=md-header__optiondata-md-component=palette><inputclass=md-optiondata-md-color-media="(prefers-color-scheme: light)"data-md-color-scheme=defaultdata-md-color-primary=purpledata-md-color-accent=indigoaria-label="Switch to dark mode"type=radioname=__paletteid=__palette_0><labelclass="md-header__button md-icon"title="Switch to dark mode"for=__palette_1hidden><svgxmlns=http://www.w3.org/2000/svgviewbox="0 0 24 24"><pathd="M12 8a4 4 0 0 0-4 4 4 4 0 0 0 4 4 4 4 0 0 0 4-4 4 4 0 0 0-4-4m0 10a6 6 0 0 1-6-6 6 6 0 0 1 6-6 6 6 0 0 1 6 6 6 6 0 0 1-6 6m8-9.31V4h-4.69L12 .69 8.69 4H4v4.69L.69 12 4 15.31V20h4.69L12 23.31 15.31 20H20v-4.69L23.31 12z"/></svg></label><inputclass=md-optiondata-md-color-media="(prefers-color-scheme: dark)"data-md-color-scheme=slatedata-md-color-primary=purpledata-md-color-accent=indigoaria-label="Switch to light mode"type=radioname=__paletteid=__palette_1><labelclass="md-header__button md-icon"title="Switch to light mode"for=__palette_0hidden><svgxmlns=http://www.w3.org/2000/svgviewbox="0 0 24 24"><pathd="M1218c-.890-1.74-.2-2.5-.55C11.5616.51314.421312s-1.44-4.5-
</span></code></pre></div></p><h2id=read-only-operation>Read-Only Operation<aclass=headerlinkhref=#read-only-operationtitle="Permanent link">¶</a></h2><p>This image can be run with a read-only container filesystem. For details please <ahref=https://docs.linuxserver.io/misc/read-only/>read the docs</a>.</p><h3id=caveats>Caveats<aclass=headerlinkhref=#caveatstitle="Permanent link">¶</a></h3><p><code>/tmp</code> must also be mounted to tmpfs for this image.</p><h2id=non-root-operation>Non-Root Operation<aclass=headerlinkhref=#non-root-operationtitle="Permanent link">¶</a></h2><p>This image can be run with a non-root user. For details please <ahref=https://docs.linuxserver.io/misc/non-root/>read the docs</a>.</p><h2id=usage>Usage<aclass=headerlinkhref=#usagetitle="Permanent link">¶</a></h2><p>To help you get started creating a container from this image you can either use docker-compose or the docker cli.</p><divclass="admonition info"><pclass=admonition-title>Info</p><p>Unless a parameter is flaged as 'optional', it is <em>mandatory</em> and a value must be provided.</p></div><h3id=docker-compose-recommended-click-here-for-more-info>docker-compose (recommended, <ahref=https://docs.linuxserver.io/general/docker-compose>click here for more info</a>)<aclass=headerlinkhref=#docker-compose-recommended-click-here-for-more-infotitle="Permanent link">¶</a></h3><divclass="language-yaml highlight"><pre><span></span><code><spanid=__span-1-1><aid=__codelineno-1-1name=__codelineno-1-1href=#__codelineno-1-1></a><spanclass=nn>---</span>
</span></code></pre></div><h3id=docker-cli-click-here-for-more-info>docker cli (<ahref=https://docs.docker.com/engine/reference/commandline/cli/>click here for more info</a>)<aclass=headerlinkhref=#docker-cli-click-here-for-more-infotitle="Permanent link">¶</a></h3><divclass="language-bash highlight"><pre><span></span><code><spanid=__span-2-1><aid=__codelineno-2-1name=__codelineno-2-1href=#__codelineno-2-1></a>docker<spanclass=w></span>run<spanclass=w></span>-d<spanclass=w></span><spanclass=se>\</span>
</span></code></pre></div><h2id=parameters>Parameters<aclass=headerlinkhref=#parameterstitle="Permanent link">¶</a></h2><p>Containers are configured using parameters passed at runtime (such as those above). These parameters are separated by a colon and indicate <code><external>:<internal></code> respectively. For example, <code>-p 8080:80</code> would expose port <code>80</code> from inside the container to be accessible from the host's IP on port <code>8080</code> outside the container.</p><h3id=ports-p>Ports (<code>-p</code>)<aclass=headerlinkhref=#ports-ptitle="Permanent link">¶</a></h3><table><thead><tr><thstyle="text-align: center;">Parameter</th><th>Function</th></tr></thead><tbody><tr><td></td><td></td></tr></tbody></table><h3id=environment-variables-e>Environment Variables (<code>-e</code>)<aclass=headerlinkhref=#environment-variables-etitle="Permanent link">¶</a></h3><table><thead><tr><thstyle="text-align: center;">Env</th><th>Function</th></tr></thead><tbody><tr><tdstyle="text-align: center;"><code>PUID=1000</code></td><td>for UserID - see below for explanation</td></tr><tr><tdstyle="text-align: center;"><code>PGID=1000</code></td><td>for GroupID - see below for explanation</td></tr><tr><tdstyle="text-align: center;"><code>TZ=Etc/UTC</code></td><td>specify a timezone to use, see this <ahref=https://en.wikipedia.org/wiki/List_of_tz_database_time_zones#List>list</a>.</td></tr></tbody></table><h3id=volume-mappings-v>Volume Mappings (<code>-v</code>)<aclass=headerlinkhref=#volume-mappings-vtitle="Permanent link">¶</a></h3><table><thead><tr><thstyle="text-align: center;">Volume</th><th>Function</th></tr></thead><tbody><tr><tdstyle="text-align: center;"><code>/config</code></td><td>Persistent config files</td></tr></tbody></table><h4id=miscellaneous-options>Miscellaneous Options<aclass=headerlinkhref=#miscellaneous-optionstitle="Permanent link">¶</a></h4><table><thead><tr><thstyle="text-align: center;">Parameter</th><th>Function</th></tr></thead><tbody><tr><tdstyle="text-align: center;"><code>--read-only=true</code></td><td>Run container with a read-only filesystem. Please <ahref=https://docs.linuxserver.io/misc/read-only/>read the docs</a>.</td></tr><tr><tdstyle="text-align: center;"><code>--user=1000:1000</code></td><td>Run container with a non-root user. Please <ahref=https://docs.linuxserver.io/misc/non-root/>read the docs</a>.</td></tr></tbody></table><h2id=environment-variables-from-files-docker-secrets>Environment variables from files (Docker secrets)<aclass=headerlinkhref=#environment-variables-from-files-docker-secretstitle="Permanent link">¶</a></h2><p>You can set any environment variable from a file by using a special prepend <code>FILE__</code>.</p><p>As an example:</p><divclass="language-bash highlight"><pre><span></span><code><spanid=__span-3-1><aid=__codelineno-3-1name=__codelineno-3-1href=#__codelineno-3-1></a>-e<spanclass=w></span><spanclass=nv>FILE__MYVAR</span><spanclass=o>=</span>/run/secrets/mysecretvariable
</span></code></pre></div><p>Will set the environment variable <code>MYVAR</code> based on the contents of the <code>/run/secrets/mysecretvariable</code> file.</p><h2id=umask-for-running-applications>Umask for running applications<aclass=headerlinkhref=#umask-for-running-applicationstitle="Permanent link">¶</a></h2><p>For all of our images we provide the ability to override the default umask settings for services started within the containers using the optional <code>-e UMASK=022</code> setting. Keep in mind umask is not chmod it subtracts from permissions based on it's value it does not add. Please read up <ahref=https://en.wikipedia.org/wiki/Umask>here</a> before asking for support.</p><h2id=user-group-identifiers>User / Group Identifiers<aclass=headerlinkhref=#user-group-identifierstitle="Permanent link">¶</a></h2><p>When using volumes (<code>-v</code> flags), permissions issues can arise between the host OS and the container, we avoid this issue by allowing you to specify the user <code>PUID</code> and group <code>PGID</code>.</p><p>Ensure any volume directories on the host are owned by the same user you specify and any permissions issues will vanish like magic.</p><p>In this instance <code>PUID=1000</code> and <code>PGID=1000</code>, to find yours use <code>id your_user</code> as below:</p><divclass="language-bash highlight"><pre><span></span><code><spanid=__span-4-1><aid=__codelineno-4-1name=__codelineno-4-1href=#__codelineno-4-1></a>id<spanclass=w></span>your_user
</span></code></pre></div><h2id=docker-mods>Docker Mods<aclass=headerlinkhref=#docker-modstitle="Permanent link">¶</a></h2><p><ahref="https://mods.linuxserver.io/?mod=ddclient"title="view available mods for this container."><imgalt="Docker Mods"src="https://img.shields.io/badge/dynamic/yaml?color=94398d&labelColor=555555&logoColor=ffffff&style=for-the-badge&label=ddclient&query=%24.mods%5B%27ddclient%27%5D.mod_count&url=https%3A%2F%2Fraw.githubusercontent.com%2Flinuxserver%2Fdocker-mods%2Fmaster%2Fmod-list.yml"></a><ahref="https://mods.linuxserver.io/?mod=universal"title="view available universal mods."><imgalt="Docker Universal Mods"src="https://img.shields.io/badge/dynamic/yaml?color=94398d&labelColor=555555&logoColor=ffffff&style=for-the-badge&label=universal&query=%24.mods%5B%27universal%27%5D.mod_count&url=https%3A%2F%2Fraw.githubusercontent.com%2Flinuxserver%2Fdocker-mods%2Fmaster%2Fmod-list.yml"></a></p><p>We publish various <ahref=https://github.com/linuxserver/docker-mods>Docker Mods</a> to enable additional functionality within the containers. The list of Mods available for this image (if any) as well as universal mods that can be applied to any one of our images can be accessed via the dynamic badges above.</p><h2id=support-info>Support Info<aclass=headerlinkhref=#support-infotitle="Permanent link">¶</a></h2><ul><li><p>Shell access whilst the container is running:</p><divclass="language-bash highlight"><pre><span></span><code><spanid=__span-6-1><aid=__codelineno-6-1name=__codelineno-6-1href=#__codelineno-6-1></a>docker<spanclass=w></span><spanclass=nb>exec</span><spanclass=w></span>-it<spanclass=w></span>ddclient<spanclass=w></span>/bin/bash
</span></code></pre></div></li><li><p>To monitor the logs of the container in realtime:</p><divclass="language-bash highlight"><pre><span></span><code><spanid=__span-7-1><aid=__codelineno-7-1name=__codelineno-7-1href=#__codelineno-7-1></a>docker<spanclass=w></span>logs<spanclass=w></span>-f<spanclass=w></span>ddclient
</span></code></pre></div></li><li><p>Container version number:</p><divclass="language-bash highlight"><pre><span></span><code><spanid=__span-8-1><aid=__codelineno-8-1name=__codelineno-8-1href=#__codelineno-8-1></a>docker<spanclass=w></span>inspect<spanclass=w></span>-f<spanclass=w></span><spanclass=s1>'{{ index .Config.Labels "build_version" }}'</span><spanclass=w></span>ddclient
</span></code></pre></div></li><li><p>Image version number:</p><divclass="language-bash highlight"><pre><span></span><code><spanid=__span-9-1><aid=__codelineno-9-1name=__codelineno-9-1href=#__codelineno-9-1></a>docker<spanclass=w></span>inspect<spanclass=w></span>-f<spanclass=w></span><spanclass=s1>'{{ index .Config.Labels "build_version" }}'</span><spanclass=w></span>lscr.io/linuxserver/ddclient:latest
</span></code></pre></div></li></ul><h2id=updating-info>Updating Info<aclass=headerlinkhref=#updating-infotitle="Permanent link">¶</a></h2><p>Most of our images are static, versioned, and require an image update and container recreation to update the app inside. With some exceptions (noted in the relevant readme.md), we do not recommend or support updating apps inside the container. Please consult the <ahref=#application-setup>Application Setup</a> section above to see if it is recommended for the image.</p><p>Below are the instructions for updating containers:</p><h3id=via-docker-compose>Via Docker Compose<aclass=headerlinkhref=#via-docker-composetitle="Permanent link">¶</a></h3><ul><li><p>Update images:</p><ul><li><p>All images:</p><divclass="language-bash highlight"><pre><span></span><code><spanid=__span-10-1><aid=__codelineno-10-1name=__codelineno-10-1href=#__codelineno-10-1></a>docker-compose<spanclass=w></span>pull
</span></code></pre></div></li></ul></li><li><p>You can also remove the old dangling images:</p><divclass="language-bash highlight"><pre><span></span><code><spanid=__span-14-1><aid=__codelineno-14-1name=__codelineno-14-1href=#__codelineno-14-1></a>docker<spanclass=w></span>image<spanclass=w></span>prune
</span></code></pre></div></li></ul><h3id=via-docker-run>Via Docker Run<aclass=headerlinkhref=#via-docker-runtitle="Permanent link">¶</a></h3><ul><li><p>Update the image:</p><divclass="language-bash highlight"><pre><span></span><code><spanid=__span-15-1><aid=__codelineno-15-1name=__codelineno-15-1href=#__codelineno-15-1></a>docker<spanclass=w></span>pull<spanclass=w></span>lscr.io/linuxserver/ddclient:latest
</span></code></pre></div></li><li><p>Stop the running container:</p><divclass="language-bash highlight"><pre><span></span><code><spanid=__span-16-1><aid=__codelineno-16-1name=__codelineno-16-1href=#__codelineno-16-1></a>docker<spanclass=w></span>stop<spanclass=w></span>ddclient
</span></code></pre></div></li><li><p>Delete the container:</p><divclass="language-bash highlight"><pre><span></span><code><spanid=__span-17-1><aid=__codelineno-17-1name=__codelineno-17-1href=#__codelineno-17-1></a>docker<spanclass=w></span>rm<spanclass=w></span>ddclient
</span></code></pre></div></li><li><p>Recreate a new container with the same docker run parameters as instructed above (if mapped correctly to a host folder, your <code>/config</code> folder and settings will be preserved)</p></li><li><p>You can also remove the old dangling images:</p><divclass="language-bash highlight"><pre><span></span><code><spanid=__span-18-1><aid=__codelineno-18-1name=__codelineno-18-1href=#__codelineno-18-1></a>docker<spanclass=w></span>image<spanclass=w></span>prune
</span></code></pre></div></li></ul><h3id=image-update-notifications-diun-docker-image-update-notifier>Image Update Notifications - Diun (Docker Image Update Notifier)<aclass=headerlinkhref=#image-update-notifications-diun-docker-image-update-notifiertitle="Permanent link">¶</a></h3><divclass="admonition tip"><pclass=admonition-title>Tip</p><p>We recommend <ahref=https://crazymax.dev/diun/>Diun</a> for update notifications. Other tools that automatically update containers unattended are not recommended or supported.</p></div><h2id=building-locally>Building locally<aclass=headerlinkhref=#building-locallytitle="Permanent link">¶</a></h2><p>If you want to make local modifications to these images for development purposes or just to customize the logic:</p><divclass="language-bash highlight"><pre><span></span><code><spanid=__span-19-1><aid=__codelineno-19-1name=__codelineno-19-1href=#__codelineno-19-1></a>git<spanclass=w></span>clone<spanclass=w></span>https://github.com/linuxserver/docker-ddclient.git
</span></code></pre></div><p>The ARM variants can be built on x86_64 hardware and vice versa using <code>lscr.io/linuxserver/qemu-static</code></p><divclass="language-bash highlight"><pre><span></span><code><spanid=__span-20-1><aid=__codelineno-20-1name=__codelineno-20-1href=#__codelineno-20-1></a>docker<spanclass=w></span>run<spanclass=w></span>--rm<spanclass=w></span>--privileged<spanclass=w></span>lscr.io/linuxserver/qemu-static<spanclass=w></span>--reset
</span></code></pre></div><p>Once registered you can define the dockerfile to use with <code>-f Dockerfile.aarch64</code>.</p><p>To help with development, we generate this dependency graph.</p><detailsclass=info><summary>Init dependency graph</summary><divclass=d2><divclass=d2-light><svgd2version=v0.6.8preserveaspectratio="xMinYMin meet"viewbox="0 0 719 2870"role=imgaria-label=Diagram><svgid=d2-svgclass=d2-46a9e95ce8a245d4b9e73410f2537a87width=719height=2870viewbox="11 11 719 2870"><rectx=11.000000y=11.000000width=719.000000height=2870.000000rx=0.000000fill=#FFFFFFstroke-width=0class=" fill-N7"/><styletype=text/css>
