If you are trying to run an enterprise in Linux, one of the key components needed is a way to automatically deploy and configure Linux on the desktop. With this you can also make a memory test utility available over the network.

Enter LinuxPXE.

With LinuxPXE and Ubuntu you can easily push desktop installs out over the network to computers without CD drives, and have it preconfigure most of your common settings.

You'll need the following components on a server:

tftpd-hpa  (TFTP Server)
A DHCP Server
An Ubuntu Jaunty Alternate CD ISO Image file

Notice I said "tftpd-hpa" - the openbsd-tftpd server will not work for this.

You'll also need an Ubuntu Jaunty desktop with:

system-config-kickstart

I'm going to assume a rather high level of network design knowledge in this and not tell you silly things like "you can only have one DHCP server on the network at a time" - wait, I just told you that. Anyway, if you aren't already familiar with configuring an Enterprise grade network then this may go a bit fast for you.

TFTP

First, configure your TFTP server. You must edit /etc/default/tftpd-hpa to enable it:

#Defaults for tftpd-hpa
RUN_DAEMON="yes"
OPTIONS="-l -s /var/lib/tftpboot"

Now start it with: