ISN (International Social Networking Services - Interactive Apps and Websites)



How to change the primary IP addres of a WHM/cPanel server (Centos/Rhel)



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:

  1. Edit /etc/sysconfig/network-scripts/ifcfg-eth0
    • Change the IPADDR and GATEWAY lines to match the new IP and Gateway for the new ip
  2. Edit /etc/sysconfig/network
    • Change the GATEWAY line here if it does not exist in the ifcfg-* file.
  3. 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 ::
  4. Edit /var/cpanel/mainip
    • Replace the old primary IP with the new primary IP
  5. Edit /etc/hosts
    • Replace the old primary IP with the new one if needed. The hostname's dns will need to be updated too
  6. 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.
  7. Restart the ipaliases script to bring up the additional IPs
    • service ipaliases restart
  8. Run ifconfig and make sure all IPs show up correctly
  9. Update the cpanel license to the new primary IP
  10. Verify you can still log in to WHM and there is no license warning
sdds
By continuing to use this site, you agree to the use of cookies to personalize content and advertisements, to provide social media functionality, to analyze our traffic using Google services like Analytics and Adsense.

Google Adsense and its partners may use your data for advertising personalization and cookies may be used for personalized and non-personalized advertising. How does Google use my data?
Please use the following button to see the list of Google partners as well as all the details regarding cookies.
See detailsI Accept
These cookies are mandatory for the operation of isn-services.com, if you do not accept them please quit this site.
You have the right to refuse cookies and leave the site or to change the parameters.