Unable to look up zone sencia.ca.

[Jeff Wark]

This morning we received a call from a customer [we're a small ISP].  They said that people from our ISP were unable to lookup 
domains on their name servers.  The domain is 'sencia.ca'.

Sure enough, when I did a simple 'host sencia.ca', the connection timed out.  I then issued the 'dumpdb' command from the ndc 
prompt.  This is the resulting information:

*snip*
$ORIGIN ca.

sencia  1473    IN      NS      ns2.s7host.net. ;Cr=addtnl [129.33.164.73]
         1473    IN      NS      ns1.s7host.net. ;Cr=addtnl [129.33.164.73]


$ORIGIN NET.
s7host  1400    IN      NS      ns1.s7host.net. ;Cr=addtnl [192.5.6.30]
         1400    IN      NS      ns2.s7host.net. ;Cr=addtnl [192.5.6.30]

$ORIGIN s7host.NET.
ns2     1400    IN      A       24.109.252.254  ;NT=134 Cr=answer [192.5.6.30]
ns1     1400    IN      A       216.211.21.143  ;NT=20401 Cr=answer [192.5.6.30]
*snip*

It seems as though we had all the information required to lookup the A record for sencia.ca, but it didn't do it.  Interestingly 
enough, after the database dump, both of our name servers looked up the host without problem.

We are running BIND 8.4.6-1 which is the version number in Debian Sarge.
Does anyone have any ideas as to why this problem may be occurring?  Any input would be appreciated.


Jeff Wark
TBayTel Internet