Postfix Configuration Parameters

http://www.postfix.org/postconf.5.html

How to clear CLI history

Type: history - to list all history

Type: history - c to clear all history

KIll process in Linux

To kill a process in Linux, do the following:

ps aux

Find the process ID to kill, and type:

kill PID (process ID)

Lost video in Ubuntu?

I recently lost my gui while playing with different drivers. Here is how I got around it.

During the GRUB's boot process press and chose a different kernel to boot from.

At the command prompt, type and login with your user account.

Now type the following:

sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf.custom
sudo sh -c 'md5sum /etc/X11/xorg.conf > /var/lib/x11/xorg.conf.md5sum'
sudo dpkg-reconfigure xserver-xorg

This will run the script to setup the hardware. Just select the proper driver
and you should be all set.

Thanks to help.ubuntu.com

VI cheat sheet

http://www.lagmonster.org/docs/vi.html

IE on Linux

http://www.tatanka.com.br/ies4linux/page/Installation