Following this procedure will also change the DHCP server's address and range AND the gateway address to your network. As with all changes to networking configuration, have a good knowledge of what you are doing and plan your changes carefully.
*Open a terminal window (AKA command prompt).
*Login as root by typing: su
*You'll be asked for a password. This is the first password you created when installing your Amahi server, NOT the password you added later and usually use to login. (If it will not accept your password, boot your server off of the installation DVD or the first CD into rescue mode ([https://docs.fedoraproject.org/en-US/Fedora/13/html/Installation_Guide/s1-rescuemode-boot.html) htmlrescue mode ] and use the passwd command to change the root password {[https://www.rackaid.com/helpdesk/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=17}root password ]).)
*Type hda-change-gw 192.168.x.x and press Enter. For the first x, enter any number you like between 1 and 255. The second x should be the gateway address of your network, which is usually 1.
*You will get "Network settings were successfully applied. Your HDA services have been restarted....It is strongly recommended that you reboot all systems on your network at this point."
*Reboot the Amahi server FIRST. Then reboot any other computers on your network that are running - or you can release and renew their IP addresses if you know how to do that.
If you run the ifconfig command from a terminal window after the Amahi server reboots, it will give you the server's new IP address. The address will typically be 192.168.x.200 where x is the number between 1 and 254 that you entered in the third octet (numbered section) when you entered the hda-change-gw command.