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Firewall Overview 551
Table 619 Mnemonic Symbol of the Port Number
Protocol Mnemonic Symbol Meaning and Actual Value
TCP bgp
chargen
cmd
daytime
discard
domain
echo
exec
finger
ftp
ftp-data
gopher
hostname irc
chat
klogin
kshell
login
lpd
nntp
pop2
pop3
smtp
sunrpc
syslog
tacacs
talk
telnet
time
uucp
whois
www
Border Gateway Protocol (179)
Character generator (19)
Remote commands (rcmd, 514)
Daytime (13)
Discard (9)
Domain Name Service (53)
Echo (7)
Exec (rsh, 512)
Finger (79)
File Transfer Protocol (21)
FTP data connections (20)
Gopher (70)
NIC hostname server (101)
Internet Relay Chat (194)
Kerberos login (543)
Kerberos shell (544)
Login (rlogin, 513)
Printer service (515)
Network News Transport Protocol (119)
Post Office Protocol v2 (109)
Post Office Protocol v3 (110)
Simple Mail Transport Protocol (25)
Sun Remote Procedure Call (111)
Syslog (514)
TAC Access Control System (49)
Talk (517)
Telnet (23)
Time (37)
Unix-to-Unix Copy Program (540)
Nicname (43)
World Wide Web (HTTP, 80)