This tutorial will show you how to change the IP address for Zentyal Server. I am using Zentyal version 3.4 on this tutorial. I was installing Zentyal Server using DHCP automatic configuration. In this case, my Zentyal Server IP address was assigned by the DHCP server on my network. This IP address keep changing all the time everytime I restart Zentyal. So I need to assign a static one.
To assign a static IP address on Zentyal, we need to go to the Network|Interfaces tab on the web administration.
Change the Method from DHCP to Static. And now we need to type the new static IP address for the server.
Click Change and Save button
Next we need to re-login using the new IP address.