A computer system and method is disclosed that aids in training system
administrators. Users can access the system administrator tool over a
secure network, and through the system administrator tool can initiate
various offensive and defensive operations against training computers on
an isolated network. The system allows one or more users to remotely
administer real applications and operating systems on the isolated
training network to acquire experience and skills to secure a network
from attack. Multiple users, such as a student and an instructor, can
establish a communication link to communicate with each other during the
simulated attack and defense of the test network.