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List: fedora-test-list
Subject: Re: DNS resolving problems
From: Jason Vas Dias <jvdias () redhat ! com>
Date: 2006-02-15 19:02:15
Message-ID: 200602151402.15847.jvdias () redhat ! com
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On Wednesday 15 February 2006 19:22, Stelian Iancu <stelian.iancu@gmx.net> wrote:
> Hi all,
>
> First of all, I am not sure this is a problem with rawhide, or it's
> present in FC4 as well, but since I am now running rawhide and I am
> experiencing this issue, I'll post it to this list.
>
> So, to the problem: DNS resolving of any kind takes ages. I've tried
> with the local DNS server of my router and with external ones, and the
> result is the same. There are no problems whatsoever with the internet
> connection, as it works really well after the initial resolving of the
> IP address.
>
> So any ideas about how can I solve this issue?
>
> Many thanks!
>
> With regards,
> Stelian Iancu
>
Hi Stelian -
We'd need some more details to be able to advise :
1. How is your resolver set up ?
Are you using only /etc/resolv.conf and the glibc resolver,
or are you running a local caching-nameserver (named) ?
Are you using NetworkManager ?
Are you using nscd ?
What does your /etc/nsswitch.conf 'hosts:' line say ?
2. Please quantify the problem - send us the /tmp/tcpdump.dns.log created by:
# tcpdump -vvv -ttt -nl -s 8192 -i any port domain >/tmp/tcpdump.dns.log 2>&1 &
# host a.name.that.takes.a.long.time.to.resolve
# pkill tcpdump
NOTE: previous response to this issue:
On Wednesday 15 February 2006 13:53, John Reiser <jreiser@bitwagon.com> wrote:
> Is the code waiting for timeout of non-existent IP6 routing?
> If so, then disable IP6.
This problem has been fixed for a long time in BIND, and should not be
a problem with glibc resolver - do you have any resolv.conf options settings ?
Thanks & Regards,
Jason Vas Dias
BIND package maintainer
Red Hat Inc.
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