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Bug 708352 - SSSD's async resolver only tries the first nameserver in /etc/resolv.conf
Summary: SSSD's async resolver only tries the first nameserver in /etc/resolv.conf
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: sssd
Version: 6.1
Hardware: Unspecified
OS: Unspecified
urgent
urgent
Target Milestone: rc
: ---
Assignee: Stephen Gallagher
QA Contact: Chandrasekar Kannan
URL:
Whiteboard:
Depends On: 703624 748835
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-05-27 11:43 UTC by RHEL Program Management
Modified: 2015-01-04 23:48 UTC (History)
10 users (show)

Fixed In Version: sssd-1.5.1-34.el6_1.1
Doc Type: Bug Fix
Doc Text:
When the first DNS entry defined in the /etc/resolv.conf file was unreachable, the sssd utility failed to try to connect to any subsequent DNS server to resolve the SRV record. This caused sssd to permanently operate in offline mode. This bug has been fixed and sssd is now able to connect to an alternate server if the primary server is down.
Clone Of:
Environment:
Last Closed: 2011-06-02 17:36:48 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2011:0849 0 normal SHIPPED_LIVE sssd bug fix update 2011-06-02 17:36:43 UTC

Description RHEL Program Management 2011-05-27 11:43:32 UTC 
This bug has been copied from bug #703624 and has been proposed
to be backported to 6.1 z-stream (EUS).
Comment 4 Kaushik Banerjee 2011-05-30 06:59:56 UTC 
1. Tested with 2 unreachable nameservers at the beginning in /etc/resolv.conf.
2. Enable debug logs and restart SSSD.
3. Enumeration and auth works fine.
# time ssh -l puser1 localhost
puser1@localhost's password: 
Last login: Mon May 30 06:40:45 2011 from localhost
Could not chdir to home directory /export/puser1: No such file or directory
-sh-4.1$ logout
Connection to localhost closed.

real	0m24.577s
user	0m0.004s
sys	0m0.023s
Comment 6 Kaushik Banerjee 2011-05-30 07:06:22 UTC 
Verified in version:
# rpm -qi sssd | head
Name        : sssd                         Relocations: (not relocatable)
Version     : 1.5.1                             Vendor: Red Hat, Inc.
Release     : 34.el6_1.1                    Build Date: Fri 27 May 2011 06:04:19 PM IST
Install Date: Mon 30 May 2011 05:58:13 AM IST      Build Host: x86-012.build.bos.redhat.com
Group       : Applications/System           Source RPM: sssd-1.5.1-34.el6_1.1.src.rpm
Size        : 3463155                          License: GPLv3+
Signature   : (none)
Packager    : Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>
URL         : http://fedorahosted.org/sssd/
Summary     : System Security Services Daemon
Comment 7 Tomas Capek 2011-06-01 09:45:15 UTC 
    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
When the first DNS entry defined in the /etc/resolv.conf file was unreachable, the sssd utility failed to try to connect to any subsequent SRV record. This caused sssd to permanently operate in offline mode. This bug has been fixed and sssd is now able to connect to an alternate server if the primary server is down.
Comment 8 Stephen Gallagher 2011-06-01 11:50:37 UTC 
(In reply to comment #7)
>     Technical note added. If any revisions are required, please edit the
> "Technical Notes" field
>     accordingly. All revisions will be proofread by the Engineering Content
> Services team.
> 
>     New Contents:
> When the first DNS entry defined in the /etc/resolv.conf file was unreachable,
> the sssd utility failed to try to connect to any subsequent SRV record. This
> caused sssd to permanently operate in offline mode. This bug has been fixed and
> sssd is now able to connect to an alternate server if the primary server is
> down.

"failed to try to connect to any subsequent SRV record" should be replaced by "failed to try to connect to any subsequent DNS server to resolve the SRV record"
Comment 9 Tomas Capek 2011-06-01 12:00:08 UTC 
    Technical note updated. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    Diffed Contents:
@@ -1 +1 @@
-When the first DNS entry defined in the /etc/resolv.conf file was unreachable, the sssd utility failed to try to connect to any subsequent SRV record. This caused sssd to permanently operate in offline mode. This bug has been fixed and sssd is now able to connect to an alternate server if the primary server is down.+When the first DNS entry defined in the /etc/resolv.conf file was unreachable, the sssd utility failed to try to connect to any subsequent DNS server to resolve the SRV record. This caused sssd to permanently operate in offline mode. This bug has been fixed and sssd is now able to connect to an alternate server if the primary server is down.
Comment 10 errata-xmlrpc 2011-06-02 17:36:48 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-0849.html
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