Currently, all my domains are managed using Cloudflare. I wanted to use
ddclient to update the IP addresses of my domains. These are the steps I followed.
If not already installed, you can install it with the following command.
sudo apt install ddclient
You can now change the configuration by changing the configuration file. Open this file using the editor.
sudo vim /etc/ddclient.conf
The configuration for Cloudflare DNS should look something like this:
protocol=cloudflare use=web, web=https://api.ipify.org/ password=YOUR_API_TOKEN zone=example.com vpn.example.com
After making the necessary changes to the configuration file, restart the
ddclient service in order for the changes to take effect.
sudo systemctl restart ddclient.service
We can test our configuration by running the following command.
sudo ddclient -debug -verbose -noquiet
Somewhere near the bottom, you should see a line like this.
SUCCESS: updating vpn.example.com: IPv4 address set to 255.255.255.255