Virtual Private Networks (VPNs)
NT 4.0 and, 34
connections costs, 652
connectivity design overview, 423425
connectivity overview, 446
DNS and, 451
extranet infrastructure design, 443
IAS and, 665
L2TP in, 433438
PPTP in, 425433
protocols overview, 425
Remote Access Policies and, 439442
remote access with, 445
routing design between internal networks, 442
securing, overview of, 410
security vs. dial-up, 447
Server 2003 features, 438439
tunnels, 446
viruses
clients and, 630, 672
Network Access Quarantine Control and, 670
overview of, 1819
risk analysis and, 510511