I really missed playing chess with someone who know how to play, I am looking for a good program to play chess online from ubuntu computer. Any Ideas?
On ubuntu, you can download Firefox, Chrome, or any other browser of your choice. From within that browser, go to lichess.org, chess.com, or chess24.com, create a free account, and play against others online.
If you'd like a lightweight CLI experience, and you have telnet enabled, try 'telnet freechess.org' on the command line.