... Exposed: Network Security Secrets and Solutions ecause the biggest hurdle of any security assessment is understanding what systems are running on your networks, an accurate listing of ports and their ... NetBIOS, 76–83 networks, 13–22, 76–87, 106 107 Novell NetWare, 100 105 , 277–282 null sessions and, 74–76 scripts, 99, 666 SNMP, 83–521 UNIX, 106 –113 users, 87–95, 107 109 Windows 2000, 72–99, 226–229 ... Of course, it is only as good as the policy or 651 652 Hacking Exposed: Network Security Secrets and Solutions sandbox security parameters it runs under, which are still configured by those darned...