Taking a trip on the net.
The graphical user interface is very easy, but if you are to be a real computer administrator, you will need to use the command line at one point or another. This is especially true with virtual systems where memory is at a premium. Here were are going to take a trip on the network, all from the keyboard without even leaving our desk. The other systems could be right next to us or a zillion miles away. We will log into two additional computers and then perform some testing on a forth system. Sometimes this is known as pen testing. NOTICE: YOU MUST HAVE THE PERMISSIONS TO PEN TEST ANOTHER SY STEM IN ADVANCE!! The real world pen testers make their clients sign a detailed agreement relieving them of any liability ahead of the events. What we are about to do is for educational purposes and no damage or illegal entry actions will be performed. Let's log into the first system. [eddie@oedt01 ~]$ ssh robopet Linux robopet 2.6.12-9-386 #1 Mon Oct 10 13:14:36 B...