This test requires two machines on the same subnet. Each machine must have the same path setup for the test, i.e. if Machine A has "/testcases/mc_commo" for the files, then Machine B must also have the same path setup. Machine B would be exported as the RHOST on Machine A, i.e. 'export RHOST=<Machine B hostname>'. If this is not done, the test will use itself as the RHOST, which isn't very useful. Also, the machine specified as the RHOST must have a ".rhosts" file in root's home directory with the hostname of the local machine that's running the test. This is to allow the script to execute it's rsh calls.