computer port

Port

When referring to a computer or device, a hardware port resembles a plug-in or connection commonly found on the back of a computer. Hardware ports allow computers to have access to external devices such as computer printers. Below is a short listing of the different types of computer ports you may find on a computer.

AT Port (Old Keyboard Port)
Firewire port
LPT Port (Printer Port)
PS/2 Port (Keyboard Port / Mouse Port)
Serial Port
Sound in / Line in
Sound out / Line out
USB Port

Port Protocol Description
0 Reserved
1 TCP TCP Port Service Multiplexer

5 Remote Job Entry
7 TCP, UDP ECHO

9 TCP, UDP Discard
13 TCP, UDP Daytime - RFC 867

17 TCP, UDP Quote of the Day
18 TCP, UDP Message Send Protocol
When referring to a computer or device, a hardware port resembles a plug-in or connection commonly found on the back of a computer. Hardware ports allow computers to have access to external devices such as computer printers. Below is a short listing of the different types of computer ports you may find on a computer.

AT Port (Old Keyboard Port)
Firewire port
LPT Port (Printer Port)
PS/2 Port (Keyboard Port / Mouse Port)
Serial Port
Sound in / Line in
Sound out / Line out
USB Port


Port Protocol Description
0 Reserved
1 TCP TCP Port Service Multiplexer

5 Remote Job Entry
7 TCP, UDP ECHO

9 TCP, UDP Discard
13 TCP, UDP Daytime - RFC 867

17 TCP, UDP Quote of the Day
18 TCP, UDP Message Send Protocol
19 TCP Chargen - RFC 864

20 TCP FTP - Data

21 TCP FTP - Control

22 TCP SSH Remote Login Protocol

22 UDP PCAnywhere
23 TCP Telnet

24 Private e-mail system
25 SMTP

27 TCP ETRN
33 Display Support Protocol
35 Private print server
37 TCP, UDP Time - RFC 868

38 TCP, UDP Route Access Protocol

39 UDP Resource Location Protocol

42 Nameserv (Host Name Server)
43 Whois

47 NI FTP

48 Default Audit Daemon
49 Login
50 Remote Mail Checking Protocol
52 XNS Time Protocol
53 DNS

57 Private terminal access
58 XNS mail
59 Private file service
60 NI mail
63 whois++
65 TACACS-Database Service
66 Oracle SQL*NET

67 Bootstrap Protocol Server, DHCP

68 Bootstrap Protocol Client, DHCP

69 TFTP

70 Gopher

75 Private dial out service
79 Finger

80 HTTP

80 TCP Dungeon Siege game
81 HOSTS2 Name Server
82 XFER Utility
87 Any private terminal link
88 Kerberos

89 SU/MIT Telnet Gateway
92 Network Printing Protocol
93 Device control Protocol
95 SUPDUP
98 TAC news
103 X400

106 3COM-TSMUX

107 Remote Telnet Service
108 SNA Gateway Access Server
109 POP2 (Post Office Protocol version 2)

110 POP3 (Post Office Protocol version 3)

115 Simple File Transfer Protocol
118 SQL Services
119 NNTP

130 CISCO FNATIVE

131 CISCO TNATIVE

132 CISCO SYSMAINT

135 Blaster worm

137 NETBIOS Name Service

138 NETBIOS Datagram Service

139 NETBIOS Session Service

143 IMAP

150 SQL-NET
151 HEMS
152 Background File Transfer Program
153 SGMP
154 NETSC
156 SQL Service
158 PCMail Server
161 SNMP

168 RSVD
179 Border Gateway Protocol

190 Gateway Access Control Protocol
200 AppleTalk Routing Maintenance

202 AppleTalk Name binding

204 AppleTalk Echo

206 AppleTalk Zone information

213 IPX

217 dBase Unix
219 Unisys ARP

220 Interactive Mail Access Protocol v3
256
258 Yak Winsock Personal Chat
263 HDAP
264 BGMP

280 HTTP-mgmt
315 DPSI
321 PIP
349 mftp
363 RSVP tunnel
366 ODMR
377 NEC Corporation
378 NEC Corporation
384 A Remote Network Server System
385 IBM Application

387 AppleTalk Update-Based Routing Protocol

391 SynOptics SNMP Relay Port
396 Novell Netware over IP

397 Multi Protocol Trans. Net.
402 Genie Protocol
406 Interactive Mail Support Protocol
413 SMSP
420 SMPTE
430 UTMPSD
431 UTMPSD
443 HTTPS

444 SNMP

445 Microsoft DS

458 Apple Quick Time

511 PassGo
514 Syslog

515 Spooler
519 Unix time
525 Time server
530 rpc
531 Chat
533 Emergency broadcasts
545 Apple Quick Time Server

546 DHCP Client

547 DHCP Server

563 SNEWS
565 whoami
568 Microsoft shuttle

569 MSN

585 IMAP4+SSL
666 Doom Id Software

711 Cisco TDP

799 ControlIT
989 FTP protocol, data, over TLS/SSL

990 FTP protocol, control, over TLS/SSL

992 Telnet protocol over TLS/SSL

993 IMAP4 protocol over TLS/SSL

994 IRC protocol over TLS/SSL

995 POP3 protocol over TLS/SSL

1025
1026
1080 Socks
1477 Microsoft SNA Server

1502 Shiva
1716 America's Army
1755 Microsoft NetShow

1812 RADIUS

2300 UDP Dungeon Siege game
3783 TCP Gamespy

4000 ICQ

4000 TCP, UDP Battle.net, Diablo, and Diablo II.

5190 AOL (AOL Instant Messenger - AIM)

5191 AOL 1

5192 AOL 2

5193 AOL 3

5631 PCAnywhere
5632 PCAnywhere
5800 TCP VNC

5801 TCP VNC

5900 TCP VNC

5901 TCP VNC

6073 UDP Dungeon Siege game
6112 TCP, UDP Battle.net

6113 TCP, UDP Battle.net

6114 TCP, UDP Battle.net

6115 TCP, UDP Battle.net

6116 TCP, UDP Battle.net

6117 TCP, UDP Battle.net

6118 TCP, UDP Battle.net

6119 TCP, UDP Battle.net

6500 Net2Phone Registration
6667 IRC

6667 TCP Gamespy

6801 Net2Phone
7000 VDOLive
7070 Real Audio

7075 Real Audio

8008 HTTP alternative

8080 HTTP alternative

9000 UDP Asheron's Call game
9000 UDP Asheron's Call game
9000 UDP Asheron's Call game
9000 UDP Asheron's Call game
9000 UDP Asheron's Call game
9000 UDP Asheron's Call game
9000 UDP Asheron's Call game
9000 UDP Asheron's Call game
9000 UDP Asheron's Call game
9000 UDP Asheron's Call game
9010 UDP Asheron's Call game
9011 UDP Asheron's Call game
9012 UDP Asheron's Call game
9013 UDP Asheron's Call game
12345 Port used by Trend Micro antivirus program. Port 12345 is also commonly used by various Trojans such as Netbus.

12468 VXtreme
17770 UDP Battlezone 2 game
17771 TCP,UDP Battlezone 2 game
17772 UDP Battlezone 2 game
26000 Quake game

27015 TCP Half-Life
27900 TCP Gamespy

28900 TCP Gamespy

29900 TCP Gamespy

29901 TCP Gamespy

33334 UDP Empire Earth game
33335 TCP Empire Earth game
43188 ReachOut
47624 TCP Age of Empires game, Baldur's Gate game, and Close Combat game