Well-known Ports and Services

For well-known port and service quick reference, use the charts in Tables B.1-B.2. Both TCP and UDP ports and services are posted for expediency and handiness. The ports listed in these tables are compatible with all Internet standardized port watchers, blockers, firewalls, and sniffers.



Table B.1 Well-Known TCP Ports and Services



PORT NUMBER


SERVICE

7


echo

9


discard

11


systat

13


daytime

15


netstat

17


qotd

19


chargen

20


FTP-Data

21


FTP

23


telnet

(continues)

Table B.1 Well-Known TCP Ports and Services (Continued)

PORT NUMBER SERVICE



25 SMTP

37 time

42 name

43 whoIs
53 domain
57 mtp

77 rje

79 finger

80 http

95 supdup

101 hostnames

102 iso-tsap

103 dictionary

104 X400-snd

105 csnet-ns



109 pop

110 pop3

111 portmap
113 auth

115 sftp

117 path

119 nntp

139 nbsession

144 news

158 tcprepo

170 print-srv

175 vmnet

400 vmnet0





Table B.1 Well-Known TCP Ports and Services (Continued)

PORT NUMBER SERVICE

512 exec

513 login

514 shell

515 printer

520 efs

526 tempo

530 courier

531


conference

532


netnews

540


uucp

543


klogin

544


kshell

556


remotefs

600


garcon

601


maitrd

602


busboy

750


kerberos

751


kerberosmast

754


krb_prop

888


erlogin

Table B.2 Well-Known UDP Ports and Services

PORT NUMBER SERVICE

7 echo 9 discard 13 daytime

17 qotd

19 chargen

(continues)

Table B.2 Well-Known UDP Ports and Services (Continued)

PORT NUMBER SERVICE



37 time



39 rlp

42 name

43 whoIs
53 dns
67 bootp

69 tftp

111 portmap

123 ntp

137 nbname

138 nbdatagram
153 sgmp



161 snmp

162 snmp-trap
315 load

500 sytek

512 biff

513 who

514 syslog

515 printer



517 talk

518 ntalk
520 route
525 timed

531 rvd-control

533 netwall

550 new- rwho

560 rmonitor

561 monitor



700 acctmaster

701 acctslave

702 acct

703 acctlogin

704 acctprimter

705 acctinfo

706 acctslave2

707 acctdisk



750 kerberos

751 kerberos_mast

752 passwd_server

753 userreg_serve