TTL's and authority (long post)

[Pete Ehlke]

Gareth Hastings (ghastings at sc.rr.com) said, on [010904 15:57]:
> 
> 1. Why do I get this error when using nslookup to check for MX record
> for my domain
> 
> ]# nslookup
> > set query=mx
> > www.gshock.co.uk
> Server:         194.168.8.100
> Address:        194.168.8.100#53
> 
> Non-authoritative answer:
> www.gshock.co.uk        canonical name = gshock.co.uk.
> 
> Authoritative answers can be found from:
> gshock.co.uk
>         origin = uk2net.com.
>         mail addr = hostmaster.gshock.co.uk.
>         serial = 2001090222
>         refresh = 43200
>         retry = 3600
>         expire = 604800
>         minimum = 86400
> 
What error? www.gshock.co.uk is a cname for gshock.co.uk, as nslookup
has told you. It thus cannot have an MX record associated with it.

> 2. If I add a new sub domain like files.gshock.co.uk on both name
> servers, restart them why can't people resolve this ? They get NXDOMAIN
> errors but any machine on my LAN can resolve them fine.
> 
Sounds like you added the zone to named.conf but did not delegate it
from gshock.co.uk. Add an NS record for files.gshock.co.uk.

I do note that your two listed name servers report different serial
numbers for gshock.co.uk. You'll need to fix your delegation problems
before anything will work reliably.

-Pete