Limited Visibility

Geoff Austin gaustin at
Sat Jan 24 18:41:56 UTC 2004


I recently set up a couple of DNS servers and had them registered for my 
domain. I use these dns servers to resolve domain addresses and they 
work perfectly. At least half the people I know are able to resolve 
addresses for my domain without problems, the other half cannot. I have 
noticed that those who cannot, MAY, fall into a category, which would be 
  users of large ISPs as they use British Telecom, SwissCom  and Equant. 
However, this may be a red herring.

At one stage Swisscom could not resolve the web server, but was happy 
receiving and sending email. For a few days it worked OK and now it 
cannot resolve any address and mail does not work.

I have fiddled with the DNS settings a number of times and am getting 
nowhere. I have run reports from and similar from and they seem to be happy with the dns. I could really 
use some help from an expert.

I'm running bind 9.2.2-p3 on fedora.
The domain name is
The ip addresses of the two dns servers are: and
Examples of a DNS servers than cannot resolve are:
Examples that can are: and

My intention was to have just two boxes in the DMZ, one a primary dns 
that does only dns (91), and one which is the secondary dns, a web 
server, a mail server and an ftp server(92). These are both set up as 
masters as I was playing with external and internal views of the domain, 
which seems to work from where I'm sitting.

I'm sure it's just a simple newbie problem, any pointers on how I might 
investigate further, would be much appreciated.

Many Thanks,

Geoff Austin

More information about the bind-users mailing list