27/11/09
04:26:30 pm, by richard 
, 1243 words 
Categories: Ubutnu Linux, Installation and Configuration, OS and Systems Administration, Virtualization
HOWTO: Install Ubuntu Server as a VirtualBox Guest
Install VirtualBox
See my short HOWTO: Installing VirtualBox or go to the Downloads page on the VirtualBox site.
If you are running X you will be able to run the GUI for Virtual box. This is probably the simplest way to start with and while you are learning to use VirtualBox. If you want to use the command line interface see my Mini HOWTO.
07/11/09
08:17:06 am, by richard , 12477 words
Categories: HOWTOs, Ubutnu Linux, Installation and Configuration, Network and Connectivity, OS and Systems Administration, Virtualization
Setting up a Professional Quality Mail Server with Ubuntu Karmic Server 9.10.
Introduction
Why I wrote this.
I wrote this HOWTO after following many other HOWTOs for Postfix and Exim and finding that parts did not work or did not explain how things worked. In short I spent many hours installing and reinstalling, playing around with settings and generally having fun. (I need to get a life) I wrote this HOWTO as record of what I did to get my own mail server up and running. I can now and in the future follow these steps again and rebuild my own mail server. I hope it is of use to others too.
30/12/08
02:59:11 pm, by richard , 2695 words
Categories: HOWTOs, Ubutnu Linux, Installation and Configuration, OS and Systems Administration
HOWTO: Convert from single disk to RAID 1 without reinstalling
When I decided it was time to make the file systems on my mail server use RAID 1 I looked around for a HOWTO. I could find loads that were either very old or incomplete or just so verbose I got old reading them. 
So in the spirit of Linux I wrote my own and published it. Here it is.
I have followed this through for both Hardy and Intrepid.
Note. Do not just follow these instructions blindly copy/pasting the commands without reading and understanding why you are doing them. Some of the commands will fail on your system, due to drive device names, unique values such as UUIDs.Now backup your system or better still play around with a virtual copy of your system first!
22/12/08
06:44:13 pm, by richard , 697 words
Categories: HOWTOs, Ubutnu Linux, Installation and Configuration, Network and Connectivity, OS and Systems Administration
HOWTO: Setup apt-cacher, caching service for installation packages
If like me you have multiple machines running Ubuntu Linux and want to take the load off from those updates! You know you need to get the upgraded software and look forward to the new features. But why download the same packages over and over when it could be done just the once
This being Linux someone has already found an answer to the problem and released the software, it is called apt-cacher.
From the man pages, which are a great source of information for this time saving tool,
When choosing where to run the server side. It is more important to have a large disk and good internet connection than high powered CPUs. This puts very little strain on the server machine. The cached packages are store by default in /var/cache/apt-cacher
21/07/08
11:42:59 am, by richard , 338 words
Categories: HOWTOs, Ubutnu Linux, Installation and Configuration, Network and Connectivity, OS and Systems Administration
HOWTO:Set up NFS sharing
The Network File System (NFS) was developed to allow machines to mount a disk partition on a remote machine as if it were a local disk. It allows for fast, seamless sharing of files across a network.
I stopped using NFS for remote file systems. When I got autofs working. See my HOWTO set up Autofs.
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