Bug 58852

Summary:	/etc/hosts entries not honoured before DNS lookups
Product:	[Retired] Red Hat Linux	Reporter:	Jeremy Laidman <jlaidman>
Component:	glibc	Assignee:	Jakub Jelinek <jakub>
Status:	CLOSED DUPLICATE	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	7.2	CC:	fweimer
Target Milestone:	---
Target Release:	---
Hardware:	i686
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2002-01-25 21:24:11 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:

Description Jeremy Laidman 2002-01-25 21:24:06 UTC

From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows 98)

Description of problem:
Using telnet or ssh to a host which is named in /etc/hosts causes the
client to perform a DNS lookup for the name.  This includes
"localhost".  host.conf says "order hosts, bind"; nsswitch.conf says
for hosts: "files nisplus dns".  /etc/hosts says
"127.0.0.1 localhost.localdomain localhost".  strace and ltrace tell
me that it's using lib_files, then lib_nisplus, then lib_dns.

When I take dns out of nsswitch, it resolves quickly.


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


How reproducible:
Always

Steps to Reproduce:
1.type "telnet localhost" - takes a long time to respond
2.copy telnet from (say) mandrake 7.2, same command comes back straight away
3.
	

Actual Results:  slow lookup with DNS traffic for entries in /etc/hosts

Expected Results:  instant lookup for entries in /etc/hosts

Additional info:

Comment 1 Jakub Jelinek 2002-01-27 10:25:08 UTC


*** This bug has been marked as a duplicate of 57998 ***