Bug#709867: libc6: sometimes cannot resolve hostname
Package: libc6
Severity: important
Dear Maintainer,
I'm suffering from exactly this issue in a forum post:
http://forums.debian.net/viewtopic.php?f=10&t=91558
It says:
"There is something wrong with networking in Wheezy but I can't identify it. I
first experienced a problem shortly after updating a mixed Squeeze/Wheezy box
almost one year ago. Suddenly Kmail refused to connect to my email service
provider claiming the host could not be found. I could ping the host, but Kmail
insisted it didn't see it. I submitted a bug report which as far as I know has
never been addressed. The problem remains. And it's not just Kmail.
Sometime after an update of Iceweasel, Iceweasel began having issues DNS
issues. Sometimes it hits, sometimes it doesn't, though it seems to be the same
sites that repeatedly miss (mostly news sites, and my email provider). Oddly
enough, installing Tor solved the problem. Then Tor broke and I had to remove
it. I was desperate so I tried using Konqueror. Same problem (among others).
So I did what any experienced Windows user would, I wiped the HD and
reinstalled a fresh copy of Wheezy. I still have the same problem. Neither
Konqueror nor Iceweasel will connect to certain sites, though they connect to
others (it's about 50/50). "Unknown host" and "Server not found" respectively.
I tried Kmail again after nearly a year to see if it had been fixed. Same
problem. I finally decided to try out Chromium. Guess what? Chromium has no
issues whatsoever. Been using it for several months now painlessly.
I am, and have been, using KDE exclusively. I have "no proxy" selected under
network settings. /etc/resolve.conf is automagically configured to my ISPs
router address 192.168.1.1. I have tried networking using both Network Manager
and the traditional /etc/network/interfaces methods. I'm using the latter now
as I seem to have fewer issues with it. Network Manager is installed but
disabled. (I did purge it once while trying to solve this problem without any
effect)."
Then he is told to disable IPv6, however, my machine is running inside an IPv6
network so I can do NOTHING! I NEED IPV6 FOR NETWORK CONNECTIVITY!
More details about my machine:
Debian wheezy, KDE desktop, bind9 installed locally.
/etc/resolv.conf:
domain miklcct.csproject.org
search miklcct.csproject.org
nameserver ::1
nameserver 127.0.0.1
nameserver 2001:470:20::2
nameserver 74.82.42.42
There is no network-manager. Absolutely not. local bind9 is configured to serve
dns64 in my local network. My machine is a gateway. This issue occurs
everywhere including kmail, konqueror, iceweasel, or even aptitude! but not
chromium, so I believe this is a library problem. And please don't ever tell me
to upgrade my system to testing/unstable. I NEED A ROCK SOLID SYSTEM WHICH DOES
NOT BREAK FOR AT LEAST 2 YEARS. I am happy to issue workarounds on my system.
Regards,
Michael
-- System Information:
Debian Release: 7.0
APT prefers stable
APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.2.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_HK.UTF-8, LC_CTYPE=en_HK.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
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