Port

PS/2 Port1. When referring to a physical device, a hardware port or peripheral port is a hole or connection found on the front or back of a computer that allows computers to access external devices such as computer printers. Below is a short listing of the different computer ports you may find on a computer. The picture shows an example of a type of port on the back of a computer.

Computer port examples

Related pages

2. A port is a term used to describe the process of taking a program that has been written for specific operating systems and moving it to another operating system. For example, taking a program written for Microsoft Windows and moving it to Linux.

3. When referring to a network or to the Internet, a software or network port is a location where information is sent through. A commonly used and accessed port is port 80, which is the http port. A listing of commonly known and used ports can also be found on the below listing. Users running Microsoft Windows can utilize the netstat command to view currently active connections that include ports currently being used.

Users who want to block ports on their computer or network can use a software or hardware firewall. If you are unable to get access to a particular port it's likely that a firewall is already present on the Network or other network settings set by the administrators have been setup.

Port Protocol Description
0 TCP, UDP Reserved (technically illegal to use)
1 TCP, UDP TCP Port Service Multiplexer
5 TCP, UDP Remote Job Entry
7 TCP, UDP ECHO
9 TCP, UDP Discard - RFC 4340 & 4960
12 TCP Dark Ages of Camelot game
13 TCP, UDP Daytime - RFC 867
17 TCP, UDP Quote of the Day
18 TCP, UDP Message Send Protocol
19 TCP, UDP Character Generator (Chargen) - RFC 864
20 TCP, UDP FTP - Data
21 TCP, UDP FTP - Control
22 UDP PCAnywhere
22 TCP, UDP SSH Remote Login Protocol
23 UDP Dungeon Siege II game
23 TCP, UDP Telnet
24 TCP, UDP Private e-mail system
25 UDP Final Fantasy XI game
25 TCP, UDP Simple Mail Transfer Protocol (SMTP)
26 TCP RSFTP
26 UDP Dungeon Siege II game
26 UDP Dungeon Siege II game
27 TCP, UDP NSW User System FE
30 TCP, UDP Games: Battlefield 1942, Ghost Recon 2, Splinter Cell: Chaos Theory, Splinter Cell: Pandora Tomorrow
32 [currently unassigned]
33 TCP, UDP Display Support Protocol
35 TCP, UDP Private print server
37 TCP, UDP Time - RFC 868
38 TCP, UDP Route Access Protocol
39 UDP Resource Location Protocol
40 TCP Midnight Commander (sometimes)
42 TCP City of Heroes game
42 TCP, UDP Nameserv (Host Name Server); Windows Internet Naming Service (WINS)
43 TCP, UDP Whois
47 TCP, UDP NI FTP
48 TCP, UDP Default Audit Daemon
49 TCP, UDP Login Host Protocol (TACACS)
50 TCP Dark Ages of Camelot game, Vodafone Sure Signal
50 TCP, UDP Remote Mail Checking Protocol
52 TCP, UDP Xerox Network Services (XNS) Time Protocol
53 TCP Games: Socom, Socom 2, Twisted Metal Black Online
53 UDP Lineage II
53 TCP, UDP Domain Name Server (DNS)
54 TCP, UDP Xerox Network Services (XNS) Clearinghouse
57 TCP, UDP Private terminal access
58 TCP, UDP XNS mail
59 TCP, UDP Private file service
60 [currently unassigned]
63 TCP, UDP whois++
64 TCP, UDP Communications Integrator (CI)
65 TCP, UDP TACACS-Database Service
66 TCP, UDP Oracle SQL*NET
67 UDP Apple NetBoot
67 TCP, UDP Bootstrap Protocol Server, DHCP
68 UDP Apple NetBoot
68 TCP, UDP Bootstrap Protocol Client, DHCP
69 TCP, UDP Trivial File Transfer Protocol (TFTP)
70 TCP, UDP Gopher
75 TCP, UDP Private dial out service
79 TCP, UDP Finger
80 TCP Games: Age of Empires III, Battlefield 2, Battlefield 2142, Call of Duty: World at War, Command & Conquer Generals/Red Alert 3/Zero Hour, Guild Wars, Lineage II, Need for Speed Carbon/Hot Pursuit 2/Most Wanted, Rainbow Six 3 Raven Shield/Lockdown/Vegas, Worms 4: Mayhem and others
80 TCP, UDP HTTP
81 TCP HTTP
81 TCP, UDP HOSTS2 Name Server
82 TCP, UDP XFER Utility
84 TCP, UDP Common Trace Facility
87 TCP, UDP Any private terminal link
88 UDP Xbox Live 360; NCAA 07 Football game
88 TCP, UDP Kerberos
89 TCP, UDP SU/MIT Telnet Gateway
90 TCP, UDP DoD Network Security for Information Exchange (DNSIX) Securit Attribute Token Map
92 TCP, UDP Network Printing Protocol
93 TCP, UDP Device Control Protocol
95 TCP, UDP SUPDUP
98 TCP linuxconf
98 TCP, UDP TAC news
103 TCP, UDP Genesis Point-to-Point Trans Net; X.400 Email
106 TCP, UDP 3COM-TSMUX
107 TCP, UDP Remote Telnet Service
108 TCP, UDP SNA Gateway Access Server
109 TCP, UDP POP2 (Post Office Protocol version 2)
110 TCP, UDP POP3 (Post Office Protocol version 3)
113 TCP, UDP IDENT Authentication Service
115 TCP, UDP Simple File Transfer Protocol (SFTP)
118 TCP, UDP SQL Services
119 TCP, UDP Network News Transfer Protocol (NNTP)
120 TCP, UDP CFDPTKT
123 UDP Network Time Procol (NTP)
130 TCP, UDP CISCO FNATIVE
131 TCP, UDP CISCO TNATIVE
132 TCP, UDP CISCO SYSMAINT
135 TCP, UDP Blaster worm
137 TCP, UDP NETBIOS Name Service
138 TCP, UDP NETBIOS Datagram Service
139 TCP, UDP NETBIOS Session Service
143 TCP, UDP Internet Message Access Protocol (IMAP)
150 TCP, UDP SQL-NET
151 TCP, UDP HEMS
152 TCP, UDP Background File Transfer Program )BFTP)
153 TCP, UDP Simple Gateway Monitoring Protocol (SGMP)
154 TCP, UDP NETSC
156 TCP, UDP SQL Service
158 TCP, UDP PCMail Server
161 TCP, UDP Simple Net Management Protocol (SNMP)
168 TCP, UDP RSVD
179 TCP, UDP Border Gateway Protocol (BGP)
190 TCP, UDP Gateway Access Control Protocol
200 TCP, UDP IBM System Resource Controller
201 TCP, UDP AppleTalk Routing Maintenance
202 TCP, UDP AppleTalk Name binding
204 TCP, UDP AppleTalk Echo
206 TCP, UDP AppleTalk Zone information
213 TCP, UDP IPX
217 TCP, UDP dBase Unix
219 TCP, UDP Unisys ARP
220 TCP, UDP Interactive Mail Access Protocol (IMAP) v3
256 TCP, UDP RAP
258 TCP, UDP Yak Winsock Personal Chat
263 TCP, UDP HDAP
264 TCP, UDP Border Gateway Multicast Protocol (BGMP)
280 TCP, UDP HTTP-mgmt
315 TCP, UDP DPSI
321 TCP, UDP PIP
349 TCP, UDP mftp
363 TCP, UDP RSVP tunnel
366 TCP, UDP On-Demand Mail Relay (ODMR)
376 TCP, UDP Amiga Envoy Network Inquiry Protocol
377 TCP, UDP NEC Corporation
378 TCP, UDP NEC Corporation
384 TCP, UDP A Remote Network Server System
385 TCP, UDP IBM Application
387 TCP, UDP AppleTalk Update-Based Routing Protocol
389 TCP Microsoft NetMeeting 2.0 to 3.01
389 TCP, UDP Lightweight Directory Access Protocol (LDAP)
391 TCP, UDP SynOptics SNMP Relay Port
396 TCP, UDP Novell Netware over IP
397 TCP, UDP Multi Protocol Trans. Net. (MPTN)
402 TCP, UDP Genie Protocol
406 TCP, UDP Interactive Mail Support Protocol (IMSP)
413 TCP, UDP Storage Management Services Protocol (SMSP)
420 TCP, UDP SMPTE
427 TCP, UDP Service Location Protocol (SLP)
430 TCP, UDP UTMPSD
431 TCP, UDP UTMPCD
443 TCP, UDP Hypertext Transfer Protocol over TL/SSL (HTTPS)
443 TCP Playstation Network; Games: Battlefield 2142, Call of Duty: World at War, Medal of Honor: Rising Sun, Socom, Socom 2
443 UDP Google Talk; Final Fantasy XI game
444 TCP, UDP Simple Network Paging Protocol (SNPP)
445 TCP, UDP Microsoft DS
458 TCP, UDP Apple Quick Time
464 TCP, UDP Kerberos (Set & Change password)
465 TCP Playstation Network, SCEA Game Servers
465 UDP IGMP over UDP for SSM
465 TCP, UDP SMTP protocol over TLS/SSL
511 TCP, UDP PassGo
514 UDP Syslog
515 TCP, UDP Spooler (printer)
519 TCP, UDP Unix time
525 TCP, UDP Time server
530 TCP, UDP Remote Procedure Call (RPC)
531 TCP, UDP Chat
533 TCP, UDP Emergency broadcasts
545 TCP Kerberos encrypted remote shell
545 TCP, UDP Apple Quick Time Server
546 TCP, UDP DHCPv6 Client
547 TCP, UDP DHCPv6 Server
554 TCP, UDP Real Time Streaming Protocol (RTSP)
563 TCP, UDP NNTP protocol over TSL/SSL (NNTPS); SNEWS
565 TCP, UDP whoami
568 TCP, UDP Microsoft shuttle
569 UDP Delta Force II game
584 TCP, UDP Key Server
585 TCP, UDP IMAP4+SSL (de-registered on April 26, 2006)
587 TCP SMTP
587 TCP, UDP Submission - RFC 4409
619 TCP, UDP Compaq EVM, Digital EVM
636 TCP, UDP Lightweight Directory Access Protcol over TLS/SSL (LDAPS)
666 TCP, UDP Doom Id Software
687 TCP, UDP asipregistry
711 TCP, UDP Cisco TDP
799 TCP ControlIT
902 TCP self documenting Telnet Door, VMware Server Console, Ideafarm Chat, ISS RealSecure Sensore
989 TCP, UDP FTP protocol, data, over TLS/SSL
990 TCP, UDP FTP protocol, control, over TLS/SSL
992 TCP, UDP Telnet protocol over TLS/SSL
993 TCP, UDP IMAP4 protocol over TLS/SSL
994 TCP, UDP IRC protocol over TLS/SSL
995 POP3 protocol over TLS/SSL
1001 UDP Tom Clancy's H.A.W.X. game
1010 TCP, UDP surf; Mac OS X RPC-based services
1025 TCP ShopPro accounting software; IIS; NFS
1025 UDP Windows RPC, network blackjack
1026 TCP, UDP Calendar Access Protocol
1027 TCP ICQ; IIS
1027 UDP IPv6 behind NAT44 CPEs
1060 TCP, UDP POLESTAR
1080 TCP, UDP Socks Proxy
1352 TCP, UDP Lotus Notes
1433 TCP Video Insight IP Video Surveillance Server
1433 TCP, UDP Microsoft SQL Server
1468 TCP, UDP CSDM
1477 TCP, UDP Microsoft SNA Server
1484 TCP, UDP Confluent License Manager
1502 TCP, UDP Shiva
1701 TCP, UDP Layer 2 Tunneling Protocol (L2TP)
1716 UDP America's Army game
1723 TCP, UDP Point-to-Point Tunneling Protocol (PPTP); Mac OS X Server VPN service
1755 TCP, UDP Microsoft NetShow & Media Server
1800 TCP, UDP Snom 320 SIP Phone; ANSYS-License manager
1812 TCP, UDP RADIUS
1817 TCP, UDP RKB-OSCS
1855 TCP, UDP Fiorano RtrSvc
1863 TCP, UDP MSN Messenger
1900 UDP Xbox 360 Media Center
1900 TCP, UDP SSDP; Universal PnP
1985 TCP, UDP Hot Standby Router Protocol (HSRP)
1995 TCP, UDP Cisco Perf-port
1999 TCP, UDP Cisco Identification port
2000 TCP Remote Anywhere; ICUII; iSpQ VideoChat; Lineage game
2000 UDP Cisco Identification port
2000 TCP, UDP Cisco SCCP; Remotely Anywhere
2077 UDP Internet Radio Linking Project (IRLP)
2077 TCP, UDP Tivoli Storage Manager; TrelliSoft Agent
2082 UDP Internet Radio Linking Project (IRLP)
2082 TCP, UDP Infowave Mobility Server
2256 TCP, UDP PCC MFP
2300 UDP Dungeon Siege game
2556 TCP Bagle backdoor virus (W32.Beagle)
2556 TCP, UDP nicetec-nmsvc
2701 TCP KnowShowGo P2P
2701 TCP, UDP SMS RCINFO
2723 TCP KnowShowGo P2P
2723 TCP, UDP WatchDog NT Protocol
2900 UDP Dungeons & Dragons Online and Lord of the Rings Online games
3001 TCP web100 Network Diagnostic Tool (NDT)
3001 TCP, UDP VidPhone
3039 TCP, UDP Cogitate, Inc.
3050 TCP, UDP Borland Interbase database (gds_db)
3052 TCP, UDP APC 3052, Powerchute
3061 TCP, UDP cautcpd
3074 TCP, UDP XBOX 360
3090 UDP Rainbow Six: Vegas game
3090 TCP, UDP Senforce Sessions Services (stss); Rappore Session Services (rtss)
3101 TCP Blackberry Enterprise Server (BES)
3101 UDP Rainbow Six: Vegas game
3101 TCP, UDP HP PolicyXpert PIB Server
3128 TCP Active API Server Port, Proxy server port, Known Trojan and backdoor port
3306 TCP Caesar IV game
3306 TCP, UDP MySQL database server
3350 UDP Settlers 3 game
3350 TCP, UDP FINDVIATV
3389 TCP, UDP Remote Desktop; Microsoft Terminal Services
3525 TCP, UDP EIS Server port
3783 TCP Gamespy
3784 TCP, UDP Ventrilo; BFD Control Protocol
4000 TCP Battle.net, Diablo and Diablo II.
4000 UDP ICQ
4000 TCP, UDP Games: Command & Conquer: Tiberian Sun, Dune 2000
4006 TCP, UDP pxc-spvr
4062 TCP, UDP Ice Location Service (SSL)
4373 TCP, UDP Remote Authenticated Command Service
4567 TCP Verizon Actiontec Routers (firmware monitoring and upgrading by Verizon FiOS)
4915 [currently unassigned]
4918 [currently unassigned]
4926 [currently unassigned]
5000 TCP DINA DVR Server; Dwyco Video Conferencing
5000 TCP, UDP Universal Plug and Play (UPnP); AIM Video IM; Yahoo Messenger Voice Chat
5037 [currently unassigned]
5190 TCP America Online; AOL Instant Messenger (AIM); ICQ
5190 UDP MSN Messenger
5191 UDP Neverwinter Nights 2 game
5191 TCP, UDP AOL 1; AOL Instant Messenger; ICQ
5192 UDP Neverwinter Nights 2 game
5192 TCP, UDP AOL 2; AOL Instant Messenger; ICQ
5193 UDP Neverwinter Nights 2 game
5193 TCP, UDP AOL 3; AOL Instant Messenger; ICQ
5200 TCP Echolink
5200 UDP Neverwinter Nights 2 game
5200 TCP, UDP TARGUS GetData
5252 UDP Neverwinter Nights 2 game
5252 TCP, UDP Movaz SSC
5314 TCP, UDP opalis-rbt-ipc
5353 UDP iChat; MultiCast DNS; Mac OS X Bonjour/Zeroconf port
5445 UDP Cisco Unified Video Advantage (not verified)
5445 TCP, UDP Server Message Block over Remote Direct Memory Access (Microsoft)
5500 TCP HotLine Peer-to-Peer (P2P) file sharing; Medal of Honor: Allied Assault (MOHAA) MatchWatch & Reverend; Virtual Network Computing (VNC)
5500 UDP SecurID
5631 TCP, UDP PCAnywhere
5632 TCP Medal of Honor: Allied Assault (MOHAA) Reverend
5632 UDP PCAnywhere
5678 TCP Medal of Honor: Allied Assault (MOHAA) Reverend
5678 UDP iChat
5678 TCP, UDP Linksys Cable/DSL Routers Remote Administration
5687 TCP Medal of Honor: Allied Assault (MOHAA) Reverend
5749 [currently unassigned]
5800 TCP VNC
5801 TCP VNC
5900 TCP VNC
5901 TCP VNC
6000 UDP Playstation 3; Games: Everquest, Madden NFL 2005, Medal of Honor: Rising Sun
6000 TCP, UDP X Window
6062 TCP, UDP X Windows System
6073 UDP Dungeon Siege game
6084 TCP Peer to Peer Infrastructure Protocol
6086 TCP, UDP PDTP P2P
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
6421 TCP, UDP NIM_WAN
6500 TCP GameSpy Arcade; Net2Phone Registration
6500 TCP, UDP Games: Black & White, Civilization III, Civilization IV, Star Wars: Battlefront, Star Wars: Empire at War
6542 TCP irccd.exe service
6553 [currently unassigned]
6667 TCP Gamespy; IRC; Games: Black & White, Civilization III, Civilization IV, Command & Conquer series, Warhammer 4000: Dawn of War, Worms 4: Mayhem
6667 UDP Games: Neverwinter Nights, Raindbow Six 3: Raven Shield
6667 TCP, UDP MSN Game Zone; Star Wars: Empire at War game
6801 TCP, UDP Net2Phone; ACNet Control System Protocol
7000 TCP Games: Command & Conquer series, Dune 2000, Emperor: Battle for Dune, Everquest, Everquest 2
7000 UDP Real Audio; QuickTime 4 server; Playstation 3
7070 TCP Real Audio
7070 UDP Games: City of Heroes, City of Villains
7075 UDP Real Audio; Games: City of Heroes, City of Villains
7900 TCP, UDP Multicast Event
8000 TCP WinAmp Audio Streaming; X-Lite; Icecast; Internet radio streams using SHOUTcast
8000 UDP Aliens vs. Predator game
8000 TCP, UDP iRDMI
8008 TCP, UDP HTTP alternative
8080 TCP EvoCam; Pirate Radio, WebcamXP; Unreal Tournament game
8080 TCP, UDP HTTP alternative
8081 TCP HTTP alternative; BlackICE ICEcap user console
8081 TCP, UDP Dreambox 8000
8084 TCP IBM Lotus Sametime server; Apache Tomcat server
8090 TCP HTTP alternative; WebcamXP
8118 TCP Privoxy
8443 TCP, UDP PCsync HTTPS; PCSync SSL; SW Soft Plesk Control Panel; Apache Tomcast SSL; iCal service
8547 [currently unassigned]
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
9090 TCP Zeus admin server
9090 TCP, UDP WebSM
9092 TCP, UDP Xml-Ipc Server Reg; Championship Manager 4
9432 [currently unassigned]
12345 TCP Port used by Trend Micro antivirus program. Port 12345 is also commonly used by various Trojan viruses such as Netbus.
12468 TCP VXtreme; WebTheater
17770 UDP Battlezone 2 game
17771 TCP,UDP Battlezone 2 game
17772 UDP Battlezone 2 game
26000 TCP, UDP Games: Quake, Elite Force, Empire Earth 2; QuakeWorld Master Server
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 TCP, UDP REACHOUT
47624 TCP Games: Age of Empires, Baldur's Gate, Close Combat

Related pages

Also see: Controller, Externet Port, Firewall, Interface, Input/output port, Operating system terms, Port bar, Port forwarding, Port scanner, Uplink