Re: [Sonic #652230] DNS lookups

[http://dummy.us.eu.org/robert (Robert)]

 > From: "Sonic.net Tech Support" <http://www.sonic.net/~support>
 > Date: Tue, 15 Jun 2004 15:17:37 -0700
 >
 > > I don't know if it's me, but I'm having problems with your DNS servers:
 > > 
 > > 208.201.224.11
 > > 208.201.224.33
 > > 
 > > A DNS query will fail (with a negative reply for the domain query) and
 > > then a few moments later, the same query will succeed.
 > > 
 > > The replies (both positive and negative) are coming back quite fast, which
 > > makes me think that the timeouts for the queries aren't large enough when
 > > the master is queried.
 > > 
 > > If I'm the only one with this problem, forget about it.
 > > 
 > > Thanks!
 > 
 > Robert,
 > 
 > You have been the only one to report it. What is your subnet mask configured 
 > for? It should be 255.255.255.0, unless you have reason for it to be something 
 > else. That can potentially cause this problem.

The masks on my outer firewall, inner firewall, Windows machine, and Linux
machines are all 255.255.255.0.  I don't think this is the problem.

 > Are you having a problem 
 > reaching other DNS servers?

I haven't tried.  Could you suggest a server?

 > Ask somebody on a different network for their DNS 
 > IP, and query that. Are you going through a router that could be relaying 
 > incorrectly or be misconfigured?

That's possible.  Perhaps it's just the hot weather :-).  Seriously, I use
Linksys and have had problems with it in the past.  Maybe it's finally
starting to die and perhaps needs to be replaced.

In any case, as a workaround, I modified my local caching DNS server so it
times out negative replies faster and it seems to be behaving better.

 > Josh
 > 
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