CentOS: Fixes Hints Tweaks and Tips

Network Card Change From DHCP to Fixed IP Address: How To
In the terminal type:

system-config-network

Select 'Edit Devices' by pressing 'Enter' on your keyboard

Select the network card you wish to edit by pressing 'Enter' on your keyboard. If you system only has one wired network card the name will most likely be 'eth0'.

Use the arrow key to move the cursor do to 'Use DHCP' section; then press the 'space' to clear the asterix

Arrow down to 'Static IP' and input the address you want to use

Arrow down to 'Netmask' and fill in

Arrow down to 'Default gateway IP' and fill in

Tab to 'OK' and press 'Enter' on your keyboard

Tab to 'Save'

Tab to 'Save&Quit' and press 'Enter' on your keyboard

Reboot the system