Modifying all DNS records

[zeromtrx]

I will be moving clients from an old server to a new server this week and I want to update all the DNS records after I move the data so the customers will "see" the new server in 4 hours instead of 24-72 hours. Is there an easy way to do this? I thought I could just search and replace the bind config but alas all the zone entries are separate files. I will do them all by hand if I must but certainly there must be an easier way to accomplish this.

Thanks in advance!

 

[ciphervendor]

Be sure to make backups & also be sure that the last octet in your customers' IPs remain the same.

Once the above is completed, you can use something like this to modify all zone files:

replace 10.10.10 20.20.20 -- /var/named/namedb/*

Note that 10.10.10 is the IP your clients currently have & 20.20.20 is the IP they should have. Again, the last octet of their IP address should remain the same between allocations in order to facilitate this renumbering process.

 

[zeromtrx]

Actually all these accounts are sharing one IP so I won't have to bother with trying to match up old IPs to new IPs.

Thanks for the help!