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DoTheEvolution
90 lines
2.3 KiB
Markdown
90 lines
2.3 KiB
Markdown
# DDclient in docker
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###### guide by example
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# Purpose & Overview
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Automatic DNS entries update.
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* [Official site](https://sourceforge.net/p/ddclient/wiki/usage/)
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* [Github](https://github.com/ddclient/ddclient)
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* [DockerHub](https://hub.docker.com/r/linuxserver/ddclient)
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DDclient is a Perl client used to update dynamic DNS records.</br>
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Useful if not having a static IP from ISP, so that if you reset your router,
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or have power outage, and you get a new public IP assigned,
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this IP gets automaticly set in the DNS records for your domains.
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In this setup it works by checking every 10 minutes
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[checkip.dyndns.org](http://checkip.dyndns.org/),
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and if the IP changed from the previous one, it updates the DNS records.
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# Files and directory structure
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```
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/etc/
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└── ddclient/
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└── ddclient.conf
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```
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# Installation
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Install ddclient from your linux official repos.
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After configuration enable the service</br>
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`sudo systemctl enable --now ddclient`
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# Configuration
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Official ddclient config example
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[here](https://github.com/ddclient/ddclient/blob/master/sample-etc_ddclient.conf).
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This setup assumes the DNS records are managed Cloudflare.</br>
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Make sure all subdomains in the config have A-records.
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`ddclient.conf`
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```bash
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daemon=600
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syslog=yes
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mail=root
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mail-failure=root
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pid=/var/run/ddclient.pid
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ssl=yes
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use=web, web=checkip.dyndns.org/, web-skip='IP Address'
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##
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## CloudFlare (www.cloudflare.com)
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##
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protocol=cloudflare, \
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zone=blabla.org, \
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ttl=1, \
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login=bastard.blabla@gmail.com, \
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password=global-api-key-goes-here \
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blabla.org,*.blabla.org,subdomain.blabla.org
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##
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protocol=cloudflare, \
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zone=blobloblo.net, \
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ttl=1, \
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login=bastard.blobloblo@gmail.com, \
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password=global-api-key-goes-here \
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blobloblo.net,*.blobloblo.net,whatever.blobloblo.org
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```
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# Update
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During host linux packages update.
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# Backup and restore
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#### Backup
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Using [borg](https://github.com/DoTheEvo/selfhosted-apps-docker/tree/master/borg_backup)
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that makes daily snapshot of the /etc directory which contains the config files.
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#### restore
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Replace the content of the config files with the one from the backup.
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