[Cialug] Inconsistent consistently long DNS lookup times
Colin Burnett
cmlburnett at gmail.com
Tue Mar 9 21:40:49 CST 2010
What I've discovered thus far is that ping uses gethostbyname(3) and
wget uses getaddrinfo(3). I think it's tied to IPv6 lookup. Doing a
`wget --inet4-only http://www.google.com` yields immediate results
then doing it without --inet4-only yields the 5 second delay (it's
clearly not being cached).
ifconfig shows ipv4 & ipv6 addresses. Is there a way to disable ipv6
support in gentoo without going through the whole recompiling the
kernel without it? Outright deleting the ipv6 addresses on eth0 & lo
using ifconfig doesn't have the hoped/desired effect.
Colin
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