Easiest Way to change Address of Master and Slave DNS's

Barry Finkel b19141 at achilles.ctd.anl.gov
Wed May 17 13:32:05 UTC 2006

Martin McCormick wrote, in part:

>> 	Due to some network reorganization, there are some who 
>> would like to change the IP addresses of our master and slave 
>> domain name servers.  We haven't changed these
>> A records in twelve years.  Since then, we have expanded from supporting one
>> forward zone and a couple of reverse zones to 77 forward zones
>> registered by almost as many different people through many companies.  
>> 	If we must do this, is there any elegant way to
>> keep from having to handle these domains one at a time?  I am 98%
>> certain the answer is no, but I will ask anyway.

and Mark Andrews <Mark_Andrews at isc.org> replied:

>	Well if the nameservers only have single names each (which
>	is why NS records take names not IP addresses) you only
>	need to change the host records for the nameservers.

There also is the problem of clients that have the IP addresses of
the name servers buried inside TCP/IP configurations, and those
name servers are referenced by IP address.  All of the local clients
of the DNS servers whose IP addresses are changing will have to
change the IP addresses in the TCP/IP configurations.
Barry S. Finkel
Computing and Information Systems Division
Argonne National Laboratory          Phone:    +1 (630) 252-7277
9700 South Cass Avenue               Facsimile:+1 (630) 252-4601
Building 222, Room D209              Internet: BSFinkel at anl.gov
Argonne, IL   60439-4828             IBMMAIL:  I1004994

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