Gothcas of changing the IP Address of an Authoritative DNS Server

Wed Dec 14 15:19:53 UTC 2005

On 14-Dec-05, at 10:02 AM, Joe Abley wrote:
>
> You also want to check all the registries which are superordinate  
> to zones your server is authoritative for, and check that any IP  
> addresses stored in those registries for your nameserver are  
> updated, otherwise you will experience either immediate or future  
> glue madness.
>
> A conservative approach to this kind of transition is to arrange  
> for your nameserver (or different nameservers hosting the same  
> data) to respond on both the old and new addresses, and to continue  
> in that mode until you see no queries directed at the old address  
> for some safe-seeming interval (bearing in mind TTLs and cached  
> records, alluded to by Steven and Sam).

If you have access customers (Dial/Broadband/etc) make sure they know  
the IP for your DNS server is changing incase they hardcode IP of  
your DNS server into their PCs.