Lairds Computer Services

The Dig DNS tool is a very useful tool for testing nameservers.  You can even use it to retrieve all of the DNS entries for a zone by using it to do a zone transfer.

This only works if the target domain allows zone transfers.

dig @nameserver targetdomain AXFR

Where nameserver is the address of the nameserver you want to query, and targetdomain is the domain name that you want to retrieve the records for.

If zone transfers are allowed, this will retrieve all of the zone records.