Guide to firewalls and network security with intrusion detection and VPNs - Whitman, Michael E. 1964- (Clifton Park, N.Y. Course Technology/Cengage Learning, 2009)
Keywords: Computer networks -- Security measures; Computer networks -- Security measures -- Problems, exercises, etc; Extranets (Computer networks); Firewalls (Computer security); Firewalls (Computer security) -- Problems, exercises, etc