Bug 53081

Summary:	Installer gets DHCP'ing hostnames wrong
Product:	[Retired] Red Hat Linux	Reporter:	Joshua Jensen <joshua>
Component:	anaconda	Assignee:	Jeremy Katz <katzj>
Status:	CLOSED WONTFIX	QA Contact:	Brock Organ <borgan>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	7.3
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2001-09-05 02:25:39 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 Joshua Jensen 2001-09-03 12:42:58 UTC

Description of Problem:

I've done two installs or RC2 onto two different machines that are DHCP 
clients.  One install was text-based via ftp, the the other a GUI install 
via NFS.  The problems is that I was never prompted for the name of the 
machine, and after an otherwise good installation, the machine reboots 
and is "localhost.localdomain".  /etc/sysconfig/network has 
HOSTNAME=localhost.localdomain, and /etc/hosts only has the one 127.0.0.1 
line.

It's annoying to boot to "localhost" named machines.

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

RC2

How Reproducible:

Install to a DHCP'ing host

Comment 1 Michael Fulbright 2001-09-04 18:36:02 UTC

This is probably a dupe of this issue, it comes up from time to time.

Comment 2 Jeremy Katz 2001-09-04 19:31:31 UTC

Do you have working reverse DNS for your DHCP'd hosts?  With DHCP, we use the
reverse dns given and otherwise fallback to localhost.localdomain.  This is the
most predictable and the most "correct" way to avoid breaking apps

Comment 3 Joshua Jensen 2001-09-05 02:25:35 UTC

Ah... that explains it.  The two IPs that I used to install RC2 did not have reverse 
resolutions.  But many IPs won't have PTR reverse-records... why not prompt for a 
hostname in those cases?  Couldn't you just place the user-supplied hostname on 
the 127.0.0.1 line in /etc/hosts?:
127.0.0.1	localhost hostname localhost.localdomain

My thinking behind this is that we don't always get the same IP if we use DHCP 
(reverse lookups aside),  but we do always have loopback (which is the entire 
point of loopback).

Comment 4 Jeremy Katz 2001-09-05 17:06:28 UTC

This breaks several applications and we've been around this half a dozen other
times.  Answer -- if using dhcp, make dns work, otherwise fix /etc/hosts
yourself and pick up the pieces of the apps that break :)  It's, unfortunately,
the best solution at the present time.