TECH.ROOM

   Home | PCHelper.com Est 1996 | HostCheetah.net | ParagonHost.net | LiquidLayer.net | RamNode | News | Products | Blog | Video | Crawler.Search | Helpdesk

How to change the primary IP address of a WHM/cPanel server

https://my.hostking.co.za/knowledgebase/201204592/How-to-change-the-primary-IP-address-of-a-WHMorcPanel-server.html

How to change the primary IP address of a WHM/cPanel server

This is for CentOS/RHEL based servers.

Steps in WHM:

  • Log into WHM and go to Basic cPanel & WHM Setup
  • Change the Primary IP here with the option that says " The IP address (only one address) that will be used for setting up shared IP virtual hosts "
  • Note: This might not actually be necessary.

Log in to SSH, and do the following:

  • Edit /etc/sysconfig/network-scripts/ifcfg-eth0

    • Change the IPADDR and GATEWAY lines to match the new IP and Gateway for the new ip
  • Edit /etc/sysconfig/network

    • Change the GATEWAY line here if it does not exist in the ifcfg-* file.
  • Edit /etc/ips

    • Remove the new primary IP from this file if it is present
    • Add the old primary IP to this file with the format ::
  • Edit /var/cpanel/mainip

    • Replace the old primary IP with the new primary IP
  • Edit /etc/hosts

    • Replace the old primary IP with the new one if needed. The hostname’s dns will need to be updated too
  • Restart the network service to make the new IP the primary

    • service network restart
    • Note: You’re probably going to be disconnected at this point, and have to log in to ssh using the new primary ip.
  • Restart the ipaliases script to bring up the additional IP

    • service ipaliases restart
  • Run ifconfig and make sure all IPs show up correctly

  • Update the cpanel license to the new primary IP

https://my.hostking.co.za/knowledgebase/201204592/How-to-change-the-primary-IP-address-of-a-WHMorcPanel-server.html