DNS info not accessible externally

[Jonathan Villa]

First, a little bit about my setup.

Red Hat 8.0 on 3 servers.
Default installation of BIND from RH8.

Server 1: 
Names: PC1(nameserver and machines hostname), PC2(alias), mail(alias)
Serves as DHCP server, DNS Server, and Mail Server

Server 2: 
Names: PC3(hostname)
Serves as CVS Repository, Samba Server, and development platform

Server 3: 
Names: PC4(hostname)
Production

I registered mydomain.com (not literally) with godaddy.com.  They gave
me the option to register nameservers, so I did.  I have
pc1.mydomain.com.  For mydomain.com, the nameservers are
pc1.mydomain.com and something like ns2.dyndns.org.

If I do a whois, I get the correct information.

Internally, I can ping and ssh any machines using the simple hostname,
except for pc1 (which is the hostname of the machine being used as the
dns server, but I can use the aliases).  I can live with not being able
to access the nameserver by it's hostname (but a fix would be helpful).

Now, for my problem.

When I try to ping or ssh into mydomain.com, I cannot.  No response
whatsoever.  However, if I try to ping or ssh into the nameserver,
pc1.mydomain.com, there is a response.

========================================================
$TTL 86400
@       IN      SOA     pc1.mydomain.com.  root.localhost (
                        4 ; serial
                        28800 ; refresh
                        7200 ; retry
                        604800 ; expire
                        86400 ; ttl
                        )


@       IN      NS      pc1.mydomain.com.
pc1 IN      NS      192.168.x.xx


pc3      IN      A       192.168.x.zz
pc2        IN      A       192.168.x.yy
pc1       IN      A       192.168.x.xx
pc1    IN      A       192.168.x.xx

========================================================

Any help would be greatly appreciated...