[SLL] Slow DNS lookups

Derek Simkowiak dereks at realloc.net
Mon Jul 28 14:53:20 PDT 2008


    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.

--Derek

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!
>
> Mike



More information about the linux-list mailing list