Bug 486602

Summary: only IPv6 nameservers in /etc/resolv.conf
Product: [Fedora] Fedora Reporter: Oleg Ponomarev <oleg>
Component: glibcAssignee: Andreas Schwab <schwab>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 10CC: detlef.graef, drepper, jakub, pb, pmuller, redhat-bugzilla, rgm, sander
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2009-11-22 19:33:17 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 516995    

Description Oleg Ponomarev 2009-02-20 15:36:59 UTC
Description of problem: resolution does not work in F10-i386, when there are only IPv6 nameservers listed in /etc/resolv.conf


Version-Release number of selected component (if applicable): glibc-2.9-3.i686
not in x86_64, already fixed in glibc-2.9.90-2.i686

How reproducible:

$ cat /etc/resolv.conf
nameserver 2001:708:140:220::3
$ ping6 ipv6.google.com
unknown host

$ cat /etc/resolv.conf
nameserver 2001:708:140:220::3
nameserver 1.2.3.4 # just any IPv4 address
$ ping6 ipv6.google.com
PING ipv6.google.com(2001:4860:0:1001::68) 56 data bytes

Comment 1 Robert Moskowitz 2009-02-20 17:59:31 UTC
I am running an all IPv6 environment, only a gateway system has an IPv4 address, and am adding a couple FC10 systems.

Please let me know when this is fixed in fedora10 updates so I can remove this rather backwards work around.

Comment 2 Sander Hoentjen 2009-04-22 08:55:08 UTC
I see the same problem on x86_64, With the default F10 install it was ok, but it broke after updates. F11-rawhide also has this same problem.

Comment 3 Detlef Graef 2009-04-22 17:29:07 UTC
I have the same problem on:

Linux robin.homeunix.net 2.6.27.21-170.2.56.fc10.x86_64 #1 SMP Mon Mar 23 23:08:10 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux

With the first install of Fedora 10 x86_64 it was ok, after some updates it doesn't work.

With this configuration it doesn't work:

[root@robin ~]# cat /etc/resolv.conf
# Generated by NetworkManager
search homeunix.net
nameserver 2a01:198:16::5253
nameserver 2001:4f8:0:2::14

With this configuration it works:

[root@robin ~]# cat /etc/resolv.conf
# Generated by NetworkManager
search homeunix.net
nameserver 2a01:198:16::5253
nameserver 2001:4f8:0:2::14
nameserver 192.168.1.1

The IPv6 nameserver is used:
(output from "tcpdump port 53")

19:20:09.829374 IP6 2a01:198:273:0:a09f:c789:2cf:36a6.42204 > 2a01:198:16::5253.domain: 395+[|domain]
19:20:09.888880 IP6 2a01:198:16::5253.domain > 2a01:198:273:0:a09f:c789:2cf:36a6.42204: 395 1/3/0 (107)
19:22:35.413096 IP6 2a01:198:273:0:a09f:c789:2cf:36a6.43344 > 2a01:198:16::5253.domain: 54495+[|domain]
19:22:35.476040 IP6 2a01:198:16::5253.domain > 2a01:198:273:0:a09f:c789:2cf:36a6.43344: 54495 0/1/0 (81)
19:22:35.476507 IP6 2a01:198:273:0:a09f:c789:2cf:36a6.50717 > 2a01:198:16::5253.domain: 45796+[|domain]
19:22:35.536079 IP6 2a01:198:16::5253.domain > 2a01:198:273:0:a09f:c789:2cf:36a6.50717: 45796 NXDomain[|domain]
19:22:35.536706 IP6 2a01:198:273:0:a09f:c789:2cf:36a6.50407 > 2a01:198:16::5253.domain: 59764+[|domain]
19:22:35.596228 IP6 2a01:198:16::5253.domain > 2a01:198:273:0:a09f:c789:2cf:36a6.50407: 59764 1/3/0 (107)
19:26:42.035846 IP6 2a01:198:273:0:a09f:c789:2cf:36a6.41821 > 2a01:198:16::5253.domain: 20835+[|domain]
19:26:42.113180 IP6 2a01:198:16::5253.domain > 2a01:198:273:0:a09f:c789:2cf:36a6.41821: 20835[|domain]
19:26:42.113390 IP6 2a01:198:273:0:a09f:c789:2cf:36a6.59995 > 2a01:198:16::5253.domain: 38190+[|domain]
19:26:42.188320 IP6 2a01:198:16::5253.domain > 2a01:198:273:0:a09f:c789:2cf:36a6.59995: 38190[|domain]

Comment 4 Peter Bieringer 2009-05-21 13:18:25 UTC
This bug hits me too,

F10 with all updates didn't work

# rpm -q glibc
glibc-2.9-3.i686

Upgrading to current glibc from rawhide solves this problem.

# rpm -q glibc
glibc-2.10.1-1.i686

Pls. port back to F10

Comment 5 Bug Zapper 2009-11-18 09:11:00 UTC
This message is a reminder that Fedora 10 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
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Comment 6 Ulrich Drepper 2009-11-22 19:33:17 UTC
Should be fixed in F12 and according to comment #4 also in F11.  I don't think F10 will get an update.  Just use any of the new releases.