[SLL] Slow DNS lookups
stunes at MIT.EDU
Mon Jul 28 17:55:07 EDT 2008
# Generated by net-scripts for interface br0
Derek Simkowiak wrote:
> Can you post your /etc/resolv.conf?
> If they're publicly available, I'll switch to your DNS servers and
> see if I can reproduce the symptoms.
> Mike Stunes wrote:
>> Recently I've been having an issue with name lookups, particularly
>> from Firefox, taking much longer than they used to. Seems like it
>> used to be pretty quick, and now navigating to a different site takes
>> several seconds, usually about four or five. (If I remember right,
>> this has been going on for a few days, maybe a week or so.) Once
>> Firefox gets past "Looking up ...", however, it's a breeze. I can't
>> figure out what might have changed that would cause this--I don't
>> remember having done any major software updates or config changes
>> about the time this started, and /etc/hosts and /etc/resolv.conf look
>> fine. Wireshark shows an interesting story-- first, an AAAA record
>> lookup, followed by an AAAA record lookup on <domain-name> +
>> ".mit.edu", followed by an A record lookup, which finally works.
>> Don't know if it did that before or not. Does anyone have any idea
>> what might be going on? Thanks in advance!
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