How to set the hostname according to the DNS name on Ubuntu 9.10?

Posted by tangens on Super User See other posts from Super User or by tangens
Published on 2010-04-09T17:48:10Z Indexed on 2010/04/09 17:53 UTC
Read the original article Hit count: 413

Filed under:

ubuntu-9.10

|

ubuntu

|

hostname

|

dns

|

dhcp

Motivation

I have to manage a lot of virtual machines that I create by copying a template (VmWare image).

Problem

Now I have the problem that in the template the file /etc/hostname contains a given name that I want to change for each copy of the template.

Facts

The network interface is configured by DHCP. DNS entries exist. The system is a Ubuntu 9.10 server.

Question

I wonder if I can configure the template so that on startup it sets its hostname according to its DNS name.

I could create an init script that parses the IP address, makes a DNS lookup and sets the hostname accordingly.

But is there an easier way?

© Super User or respective owner

Related posts about ubuntu-9.10

Installation from Usb

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Want to install ubuntu from usb flash but after i press continue after the install alongside windows button my HP pavillion laptop restarts and boots into vista and starts wubi installer. The wubi installer installation process ends with the following error. 'None Type' object has no attribute… >>> More
Ubuntu 9 & 10 ignore .xinitrc?

as seen on Super User - Search for 'Super User'
In Ubuntu 9.x, 10.x, the .xinitrc file is apparently not used. So, where do you put your xinit stuff? Note: asking this here, answering it myself, in light of http://serverfault.com/questions/87156/ubuntu-karmic-ignores-xinitrc >>> More
Ubuntu Apache 10 second timeout

as seen on Server Fault - Search for 'Server Fault'
Hi, I'm debugging an API I'm building using netcat to send raw HTTP requests. The thing is that Apache closes the connection after 10 seconds, giving me very little time to type. I know that I could pipe a file to nc, or use any other workaround, but I'd like it to work as it's supposed to. The… >>> More
With Ubuntu Linux (10+), how do I connect to remote to my machine from Windows

as seen on Super User - Search for 'Super User'
I tried to to remote into my Ubuntu machine. I enabled the setting on Ubuntu and that side seems to work. But I get a connection time out when I use RealVNC on the Windows box. I believe it is a firewall issue. I disabled the firewall for that application on Windows but I don't know how to check… >>> More
Wireless networking on Gnome on Ubuntu 9 / 10

as seen on Server Fault - Search for 'Server Fault'
So here's my problem: I have some netbooks (ASUS eee, and ACER Aspire Ones) that I've been tasked to set up as kiosk machines, locked up tight for normal users. I am a command-line, server man, so this gnome malarkey is all a bit new to me. I found a lovely 9.04 kiosk livecd that installs and runs… >>> More

Related posts about ubuntu

Cannot update, apt-get cannot fetch index files

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have a fresh install of Ubuntu 11.10 from the iso 'ubuntu-11.10-desktop-amd64.iso'. I installed this in VMWare Fusion 4.1.1 running on OSX 10.7.3. When setting up the VM, I allowed easy install to take care of creating my user and installing VMWare tools. No problems during installation, everything… >>> More
'sudo apt-get update' error on Ubuntu 12.04

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
When I type in 'sudo apt-get update' I get this mohd-arafat-hossain@TUD:~$ sudo apt-get update [sudo] password for mohd-arafat-hossain: Ign http://bd.archive.ubuntu.com precise InRelease Ign http://bd.archive.ubuntu.com precise-updates InRelease Ign http://bd.archive.ubuntu… >>> More
Opening Skype, Opera, OpenOffice logs me off

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Whats common among Skype, Opera, OpenOffice in Ubuntu ? Whenever I open these applications I get logged off and shows back me the login screen. This started happening since the 10.10 upgrade. Forgot to mention : Yes, its x64.Each time I open these applications, the UI shows and then crashes. I… >>> More
Update information outdated

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have a warning triangle that my update information is outdated, the last update was 12 days ago. I use Ubuntu 11.10. A run of sudo apt-get update produces the following output: Ign http://ppa.launchpad.net oneiric InRelease Ign http://de.archive.ubuntu.com oneiric InRelease … >>> More
ubuntu/apt-get update said "Failed to Fetch http:// .... 404 not found"

as seen on Server Fault - Search for 'Server Fault'
Hi all, I'm trying to run apt-get update on ubuntu 9.10 I've configured my proxy server and I can access the internet without any problem: /etc/apt# wget "http://www.google.com" Resolving (...) Proxy request sent, awaiting response... 200 OK Length: 292 [text/html] Saving to: `index.html' 100%[=================================================================================================================================>]… >>> More