Re: [cobalt-developers] Global DNS changes (fwd)

["Steve Werby" <steve-lists@xxxxxxxxxxxx>]

"Peter Dickson" <peter.dickson@xxxxxxxxxxx> wrote:
> We will soon be moving our Cobalt RaQ2 onto a new network with new IP
> address and new host/domainname.
>
> After the move it will be the primary name server for over 100 domains
> (unpublished primary DNS) with secondary NS facilities provided by
> www.granitecanyon.com. It is currently the primary name server for a few
> domains (unpublished primary DNS) with secondary NS facilities provided by
> our current ISP who we are ditching.
>
> There's obviously a lot involved in this move! :)
>
> We are confident with DNS but were wondering if anyone could provide:
>
> a)  location/access to cobalt scripts for doing global DNS changes
> b)  advice on implications of making global DNS changes without using the
> cobalt GUI

The RaQ2 stores all DNS record in /etc/named/records and uses a script
/usr/admserv/cgi-bin/.cobalt/dns/index.cgi to parse the file and build the
zone files used by DNS which are the pri* files in /etc/named/.  I'd suggest
backing up the records file, then editing it and running the script.

> c)  brief checklist to ensure we don't miss anything out! :)

You may want to change the TTL settings in the zone files so that servers
that respect TTL will check back more frequently to check if the DNS records
have changed.  In the RaQ2 I believe you'll either have to edit all of the
pri* files manually to make that change (yes, somewhat cumbersome) or you'll
have to first edit the script I'd advised you run to change the TTL (and any
other SOA variables you need to change, consult a DNS reference) before
running the script.

Hope that gets you started.

--
Steve Werby
President, Befriend Internet Services LLC
http://www.befriend.com/