On 11/28/11 1:58 PM, Alan McKay wrote:
man dig
man nslookup man whois man traceroute
Clearly you've never used DNSstuff.com
actually, i have, and its failed to identify issues with stale and lame NS records that I was able to easily find by hand with the 'hosts' command which I use instead of dig and nslookup.
the key is to query all the authoritative zone servers as identified via whois AND as seen via `hosts -t NS domainname dnsserverip` and verify that all the authoritative servers have the same SOA serial # and NS data.