[ICSI_CPT]Testing Finger service for User Enumeration in Unix-like

Suppose the target is 192.168.0.10:

# finger @192.168.0.10

# finger '1 2 3 4 5 6 7 8 9 0'@192.168.0.10

# finger 0@192.168.0.10

# finger .@192.168.0.10

# finger **@192.168.0.10

# finger user@192.168.0.10

# finger test@192.168.0.10