How to set up proxy auto config on Ubuntu Desktop

Suppose you are using your Ubuntu Desktop laptop at home and workplace. Assume that when you are at your workplace, the corporate network your laptop is connected to is behind proxy. You then have to turn on/off proxy depending on where you are. Of course you can manually update proxy settings of Ubuntu Desktop every time your network changes, but that's quite cumbersome. That's when proxy auto-config helps.Read more »

How to enable X11 forwarding using ssh

X11 forwarding is a mechanism that allows graphical interfaces of X11 programs running on a remote Linux server to be displayed on a local client machine. Behind the scene, the X11 output of a remotely running program is authorized to be sent to localhost via an X11 connection between client and a remote server. SSH has an option to securely tunnel such X11 connections, so that X11 forwarding sessions are encrypted and encapsulated. If you would like to set up X11 forwarding over SSH, check out this guideline.Read more »

How to install GNOME desktop on CentOS

Suppose you have set up a "minimal" version of CentOS without X-windows on your machine before. Now you wish to install GNOME desktop on the CentOS system in order to run some desktop applications. If you would like to add GNOME desktop to CentOS minimal installation, you can do the following.Read more »