[SLL] Slow DNS lookups

Jeremy C. Reed reed at reedmedia.net
Mon Jul 28 15:01:40 PDT 2008


> 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!

Remove the domain and/or search lines from your resolv.conf unless you 
really need them.

Also in firefox see about:config for the network.dns.disableIPv6 option.

I don't know if glibc has any configuration to stop AAAA lookups first 
with generic getaddrinfo.


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