Bug 1383865

Summary:	Updating systemd package should not modify nsswitch.conf
Product:	Red Hat Enterprise Linux 7	Reporter:	NTT OSS Center OS Team <oss-os-contact>
Component:	systemd	Assignee:	systemd-maint
Status:	CLOSED DUPLICATE	QA Contact:	qe-baseos-daemons
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	7.3	CC:	bblaskov, jruemker, jsynacek, systemd-maint-list
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2016-12-12 20:56:15 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:	1298243, 1383699

Description NTT OSS Center OS Team 2016-10-12 02:20:37 UTC

Description of problem:

Updating systemd package add myhostname to the hosts line of /etc/nsswith.conf by postinstall scriptlet.
I think this script should run only time to install, not run time to upgrade.

Version-Release number of selected component (if applicable):

systemd-219-26.el7.x86_64

How reproducible:

Updating systemd package

Steps to Reproduce:
1. grep '^hosts:' /etc/nsswitch.conf
hosts:      files dns

2. yum update systemd

Actual results:
# grep '^hosts:' /etc/nsswitch.conf
hosts:      files dns myhostname

Expected results:
# grep '^hosts:' /etc/nsswitch.conf
hosts:      files dns

Additional info:

Some users would not like to use nss-myhostname.
These users delete myhostname from the hosts line of /etc/nsswith.conf.
Updating systemd package break this settings.

See also:
Why 'getent' command is resolving ipv6 address only and not ipv4 in Red Hat Enterprise Linux 7 ?
https://access.redhat.com/solutions/1287253

Comment 2 John Ruemker 2016-12-12 20:56:15 UTC

Marking a duplicate of 1368929 already tracking this issue.

*** This bug has been marked as a duplicate of bug 1368929 ***