Changes

In OPS235, you learned how to configure a virtual private network for the '''centos1''', '''centos2''' and '''centos3''' virtual machines. All of the virtual machines in this the OPS335 course for labs and assignments will be CLI (or "text-based), " (just as centos3 was CLI in for your OPS235 labs). All of the services that we are configuring in this course '''require a working network connection'''; therefore, it is very important that you know how to configure a network connection for your VMs, whether via command line for trouble-shooting purposes, or to create a persistent (permanent) network connection that uses static IP address (as opposed to DHCP).