Security 3 (Administration, Authorization and Authentication -, ) , .
, , .
, , . .
, , , .
Security ( , ) , . , .
Computer Associates, Netegrity, RSA Security, Verisign IBM ( Tivoli).
2.2.2. VPN (Firewall/ VPN SW)
Firewall/VPM SW , . , VPN-. , distributed-. - , . VPN- .
( ) . , () , , , , . , ..
( ) . , : Telnet, FTP . , . [7]
, FireWall/VPN-1 Check Point Software Technologies, Symantec Enterprise Firewall VPN Symantec eTrust Firewall Computer Associates. Windows 2.
2 - Windows