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4.7. Remote Authentication Dial-In User Service
RADIUS (Remote Authentication Dial-In User Service) is a client/server protocol that enables
remote access servers to communicate with a central server to authenticate dial-in users and
authorize their access to the requested system or service.
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4.8. SOCKet Secure v4
Socks 4 is an authentication protocol.
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4.9. SOCKet Secure v5
Socks 5 is an authentication protocol.
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4.10. Terminal Access Controller Access-Control System
Plus
TACACS+ (Terminal Access Controller Access-Control System Plus) is a Cisco Systems proprietary
protocol which provides access control for routers, network access servers and other networked
computing devices via one or more centralized servers.
Authentication
ppp
18
3
Network Utilities
Server Applications
Authentication
udp
17
4
Network Utilities
Information Leaking
Server Applications
Tunneling
tcp
18
5
Non-business Related
Masquerading Tunnels
Tunneling
tcp
18
5
Non-business Related
Masquerading Tunnels
101
Chapter 4: Authentication