[TriLUG] Linux DNS Server issues with DOS client

[Jeff The Riffer]

On Fri, 5 Aug 2005, Roy Vestal wrote:
> The problem: When it tries to map this drive, it fails 8 times before it
> finally is able to map the drive.  This happens from ANY network drop I
> have on this private network. And it is exactly 8 failures EVERY time. I
> cannot manually map from the DOS diskette. I've tried to manually do
> this 10 times in a row, so I have to put it in a bat file to make it loop.

Sounds like it's giving up on one resolution method and falling back to
another (i.e. hosts file or something).

> I've run named-checkconf and named-checkzone on my zones. All but 1 seem
> to pass. I'm not sure how to run named-checkzone on named.ca - could
> someone advise on this?

Enable query logging in your named.conf file:

logging {
        # DNS query messages
        channel dnslog_query {
                file "log/dns_query.log";
                severity info;
                print-category yes;
                print-severity yes;
                print-time yes;
        };

	category client { dnslog_query; };
	category queries { dnslog_query; };
	category resolver { dnslog_query; };
}

Restart bind. Then do a tail -f log/dns_query.log and watch it while your
DOS client does it's thing. If you don't see ANYTHING than you've got a
disconnect.

You should probably be doing a tcpdump on port 53 during this time in
another window.


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