HOW TO: Change domain IPs without loss of availability during propagation

[IT_Architect]

This procedure allows you to change domain IPs without loss of availability normally experienced during propagation time by having Apache to respond to both the new and the old IP.

- Open the current /usr/local/directadmin/data/users/<username>httpd.conf with a text editor and copy the current vhost information.
- Open /etc/httpd/conf/httpd-includes.conf. Make a section at the end of the file like this:

#############################
# Temporary changes: Delete after 00/00/00
#############################

Paste in the current vhost information here

#############################
# End Temporary changes: Delete after 00/00/00
#############################
and save

- Login into DA as admin, add the new IP address, and give to the reseller for the domain.
- Login into DA as the reseller, change the IP for the user.
- Set a reminder in your planner for 72 hours from now to delete the temporary changes in /etc/httpd/conf/httpd-includes.conf.

Alternatively you could make an httpd-includes.temp to include in the httpd-includes.conf and an empty file named httpd-includes.clear. Then set up a cron to copy httpd-includes.clear over httpd-includes.temp in two days and restart Apache.

 

[floyd]

It might take more than 2 days for all isp's to clear their cache. I know this from experience. Not all isp's follow the rules.

 

[IT_Architect]

It might take more than 2 days for all isp's to clear their cache. I know this from experience. Not all isp's follow the rules.

True. Changed to 72 hours as this is the max I've seen posted around the web. I know that won't cover everything. We had one office in Vancouver where it would take a week or a telephone call.