Bug 824053

Summary:	dhclient-script should honor PEERDNS on quit
Product:	[Fedora] Fedora	Reporter:	Fabian Deutsch <fdeutsch>
Component:	dhcp	Assignee:	Jiri Popelka <jpopelka>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	16	CC:	jpopelka
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	824622 (view as bug list)		Environment:
Last Closed:	2012-05-23 15:24:57 UTC	Type:	Bug
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:	824622

Description Fabian Deutsch 2012-05-22 16:13:47 UTC

Description of problem:
If /etc/resolv.conf is changed while dhclient is running (with PEERDNS=yes), /etc/resolv.conf get's overwritten even if PEERDNS was set to "no" befor it was shutdown.

How reproducible:
Always

Steps to Reproduce:
See bug #822930
  
Actual results:
/etc/resolv.conf is empty (or contains previous data)


Expected results:
/etc/resolv.conf is not touched

Additional info:
This is just a problem if dhclient started with PEERDNS=yes and quits with PEERDNS=no (so the user expects dhclient no to touch resolv.conf)

Comment 1 Jiri Popelka 2012-05-23 15:24:57 UTC

(In reply to bug #822930, comment #7)
> The network is configured using DHCP, dhclient creates a copy of the
> original (a) /etc/resolv.conf in e.g. (b)
> /var/lib/dhclient/resolv.conf.predhclient.breth0 .
> When dhclient is shut down, it overwrites /etc/resolv.conf with (b), thus,
> any changes that happened during the lifetime of dhclient to
> /etc/resolv.conf are lost.

I already removed this /etc/resolv.conf backup&restore part of dhclient-script in F-17:
http://pkgs.fedoraproject.org/gitweb/?p=dhcp.git;a=commitdiff;h=1e3f54a9ec3e1610b8ad4920c6c6b0c4c80a1e22

I'm closing as fixed in rawhide. Feel free to reopen if you need to have this fixed in F-16.