Table 9-1.
Well-known TCP Ports
Application
Border Gateway Protocol (BGP)
Daytime server
Domain Name System (DNS)
FTP
Hostname
Internet Relay Chat (IRC)
Kerberos login
Kerberos shell
Microsoft directory services (such
as Active Directory)
Network News Transfer Protocol
(NNTP)
Protocol Independent Multicast
(PIM) Rendezvous Point (RP)
Post Office Protocol (POP)2
POP3
Secure Shell (SSH)
Simple Mail Transfer Protocol
(SMTP)
Simple Network Time Protocol
(SNTP)
Sun Remote Procedure Call (RPC)
Syslog
Terminal Access Controller Access
Control System (TACACS)
Talk
Telnet
Trivial File Transfer Protocol (TFTP) 69
Unix to Unix Copy (UUCP)
Configuring Network Monitoring
TCP Port
179
13
53
21
101
194
543
544
445
119
496
109
110
22
25
37
111
514
49
517
23
520
Network Monitoring
9-13