Configuring ddclient to update your dynamic DNS at is one of the few dynamic DNS free services that are reliable to use. If you have, like in my situation, a RaspberryPi connected to your home DSL and you want it to be always reachable without knowing the current IP address (the IP could change if you have a normal DSL service at home), you need a dynamic DNS service.

To update the one you just need ddclient a tool that is available in Raspbian/Debian repository. You can install it with this command:

sudo apt-get install ddclient

then you just need to edit /etc/ddclient.conf

use=web,, web-skip='IP Address'

and restart the client:

sudo /etc/init.d/ddclient restart

That's all! Please remember that free accounts have a limitation: they need to be confirmed every 30 days (you will receive an email and you need to click on the link contained to update your DNS).

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