| Port |
Protocol |
Description |
Status |
| 0 |
TCP |
|
|
| 0 |
UDP |
Reserved |
Official |
| 1 |
TCP |
TCPMUX
(TCP port service Multiplexer) |
Official |
| 7 |
TCP |
ECHO
protocol |
Official |
| 7 |
UDP |
ECHO
protocol |
Official |
| 9 |
TCP |
DISCARD
protocol |
Official |
| 9 |
UDP |
DISCARD
protocol |
Official |
| 13 |
TCP |
DAYTIME
protocol |
Official |
| 13 |
UDP |
DAYTIME
Protocol |
Official |
| 17 |
TCP |
QOTD
(Quote of the Day) protocol |
Official |
| 19 |
TCP |
CHAR
GEN (Character Generator) protocol |
Official |
| 19 |
UDP |
CHAR
GEN (Character Generator) protocol |
Official |
| 20 |
TCP |
FTP
(File Transfer Protocol) - data port |
Official |
| 21 |
TCP |
FTP
- control (command) port |
Official |
| 22 |
TCP |
SSH
(Secure Shell) - used for secure logins, file transfers (scp,sftp)
and for forwarding |
Official |
| 23 |
TCP |
Telnet
protocol - Unencrypted text communications |
Official |
| 25 |
TCP |
SMTP
(Simple Mail Transfer Protocol) - used for sending emails |
Official |
| 37 |
TCP |
TIME
protocol |
Official |
| 37 |
UDP |
TIME
protocol |
Official |
| 49 |
UDP |
TACACS
protocol |
Official |
| 53 |
TCP |
DNS
(Domain Name Server) |
Official |
| 53 |
UDP |
DNS
- most commonly used |
Official |
| 67 |
UDP |
BOOTP
(BootStrap Protocol) server. Also used by DHCP (Dynamic Host Configuration
Protocol) |
Official |
| 68 |
UDP |
BOOTP
client and DHCP |
Official |
| 69 |
UDP |
TFTP
(Trivial File Transfer Protocol) |
Official |
| 70 |
TCP |
Gopher
protocol |
Official |
| 79 |
TCP |
Finger
protocol |
Official |
| 80 |
TCP |
HTTP
(Hyper Text Transfer Protocol) |
Official |
| 81 |
TCP |
Smoothwall
Web GUI default port |
Unofficial |
| 88 |
TCP |
Kerberos
- Authenticating agent |
Official |
| 109 |
TCP |
POP2
(Post Office Protocol version 2) Email retrieval |
Official |
| 110 |
TCP |
POP3
(Post Office Protocol version 3) Email retrieval |
Official |
| 113 |
TCP |
ident
- Old server identification system, used by IRC to identify users |
Official |
| 119 |
TCP |
NNTP
(Network News Transfer Protocol) - Used to retrieve newsgroup messages |
Official |
| 123 |
UDP |
NTP
(Network Time Protocol) - Used for time synchronization |
Official |
| 139 |
TCP |
NetBIOS |
Official |
| 143 |
TCP |
IMAP4
(Internet Message Access Protocol) Used to retrieve email |
Official |
| 161 |
UDP |
SNMP
(Simple Network Management Protocol) |
Official |
| 179 |
TCP |
BGP
(Border Gateway Protocol) |
Official |
| 194 |
TCP |
IRC
(Internet Relay Chat) |
Official |
| 222 |
TCP |
Smoothwall
SSH |
Unofficial |
| 389 |
TCP |
LDAP
(Lightweight Directory Access Protocol) |
Official |
| 443 |
TCP |
HTTPS
- HTTP over SSL (encrypted transmission) |
Official |
| 445 |
TCP |
Microsoft-DS
(Active Directory, Windows shares, Sasser Worm, Agobot, Zobot Worm) |
Official |
| 445 |
UDP |
Microsoft-DS
SMB file sharing |
Official |
| 465 |
TCP |
SMTP
over SSL - Conflict with registered Cisco protocol |
Unofficial/Confilict |
| 514 |
UDP |
syslog
protocol - Used for system logging |
Official |
| 540 |
TCP |
UUCP
(Unix-to-Unix Copy Protocol) |
Official |
| 542 |
TCP |
commerce
(Commerce applications) |
Official |
| 542 |
UDP |
commerce |
Official |
| 554 |
TCP |
RTSP
(Real Time Streaming Protocol) |
Official |
| 587 |
TCP |
email
message submission (SMTP) - RFC 2476 |
Official |
| 591 |
TCP |
FileMaker
6.0 Web Sharing (HTTP Alternate) |
Official |
| 636 |
TCP |
LDAP
over SSL (encrypted transmission) |
Official |
| 666 |
TCP |
id Software's
Doom Multiplayer game (number of the beast) |
Official |
| 873 |
TCP |
rsync
- File synchronization protocol |
Official |
| 901 |
TCP |
SWAT
(Samba Web Administration Tool) |
Unofficial |
| 981 |
TCP |
SofaWare
Technologies Remote HTTPS management for firewall devices running
embedded Checkpoint Firewall-1 |
Unofficial |
| 993 |
TCP |
IMAP4
over SSL (encrypted transmission) |
Official |
| 995 |
TCP |
POP3
over SSL (encrypted transmission) |
Official |
| 1080 |
TCP |
SOCKS
proxy |
Official |
| 1099 |
TCP |
RMI
Registry |
Official |
| 1099 |
UDP |
RMI
Registry |
Official |
| 1194 |
UDP |
OpenVPN |
Official |
| 1214 |
TCP |
Kazaa
default |
Official |
| 1223 |
TCP |
TGP
(Truly Global Protocol) |
Official |
| 1337 |
TCP |
WASTE
Encrypted File Sharing Program |
Unofficial/Conflict |
| 1352 |
TCP |
IBM
Lotus Notes/Domino RCP |
Official |
| 1387 |
TCP |
Computer
Aided Design Software Inc LM |
Official |
| 1387 |
UDP |
Computer
Aided Design Software Inc LM |
Official |
| 1414 |
TCP |
IBM
MQSeries |
Official |
| 1433 |
TCP |
Microsoft
SQL database system |
Official |
| 1434 |
TCP |
Microsoft
SQL Monitor |
Official |
| 1434 |
UDP |
Microsoft
SQL Monitor |
Official |
| 1494 |
TCP |
Citrix
MetaFrame ICA Client |
Official |
| 1521 |
TCP |
Oracle
database default listener - Conflict with registered use: nCube License
Manager |
Unofficial/Conflict |
| 1547 |
TCP |
Laplink |
Official |
| 1547 |
UDP |
Laplink |
Official |
| 1718 |
TCP/UDP |
H.323 Gate Discovery |
|
| 1719 |
TCP/UDP |
H.323 Gate Stat |
|
| 1720 |
TCP/UDP |
H.323 Host Call (VoIP) |
|
| 1723 |
TCP |
Microsoft
PPTP VPN |
Official |
| 1723 |
UDP |
Microsoft
PPTP VPN |
Official |
| 1731 |
TCP |
Audio Call Control |
|
| 1761 |
TCP |
Novell
Zenworks Remote Control Utility - Conflict with registered use: cft-0 |
Unofficial/Conflict |
| 1863 |
TCP |
MSN
Messenger |
Official |
| 1900 |
UDP |
Microsoft
SSDP - Enabled discovery of UPnP devices |
Official |
| 1984 |
TCP |
Big
Brother - network monitoring tool |
Official |
| 2000 |
TCP |
Cisco
SCCP (Skinny) |
Official |
| 2000 |
UDP |
Cisco
SCCP (Skinny) |
Official |
| 2030 |
|
Oracle
Services for Microsoft Transaction Server |
Unofficial |
| 2082 |
TCP |
CPanel's
default port - Conflict with registered use: Infowave Mobility Server |
Unofficial/Conflict |
| 2083 |
TCP |
CPanel's
default port for SSL connection |
Unofficial |
| 2086 |
TCP |
WebHost
Manager's default port - Conflict with registered use: GNUnet |
Unofficial/Conflict |
| 2087 |
TCP |
WebHost
Manager's default port for SSL connections |
Unofficial |
| 2095 |
TCP |
CPanel's
default port for webmail connections |
Unofficial |
| 2096 |
TCP |
CPanel's
default port for webmail connections via SSL |
Unofficial |
| 2181 |
TCP |
EForward
- document transport system |
Official |
| 2181 |
UDP |
EForward
- document transport system |
Official |
| 2222 |
TCP |
DirectAdmin's
default port |
Unofficial |
| 2427 |
UDP |
Cisco
MGCP |
Official |
| 2447 |
TCP |
ovwdb
- OpenView Network Node Manager (NNM) daemon |
Official |
| 2447 |
UDP |
ovwdb
- OpenView Network Node Manager (NNM) daemon |
Official |
| 2517 |
TCP/UDP |
H.323 Annex E call signaling transport |
|
| 2710 |
TCP |
XBT
Bittorrent Tracker |
Unofficial |
| 2710 |
UDP |
XBT
Bittorrent Tracker experimental UDP tracker extension |
Unofficial |
| 3050 |
TCP |
gds_db |
Official |
| 3050 |
UDP |
dgs_db |
Official |
| 3128 |
TCP |
HTTP
used by web caches and Squid cache default port |
Official |
| 3306 |
TCP |
MySQL
Database System |
Official |
| 3389 |
TCP |
Microsoft
Terminal Server (RDP) officially registered as Windows Based Terminal
(WBT) |
Official |
| 3396 |
TCP |
Novell
NDPS Printer Agent |
Official |
| 3689 |
TCP |
DAAP
Digital Audio Access Protocol used by Apple's ITunes |
Official |
| 3690 |
TCP |
Subversion
version control system |
Official |
| 3784 |
TCP |
Ventrilo
VoIP program |
Official |
| 3785 |
UDP |
Ventrilo
VoIP program |
Official |
| 4662 |
TCP |
eMule
- Port often used |
Unofficial |
| 4672 |
UDP |
eMule |
Unofficial |
| 4894 |
TCP |
LysKOM
Protocol A |
Official |
| 4899 |
TCP |
RAdmin
remote administration tool (Often trojan horse) |
Official |
| 5000 |
TCP |
UPnP
- Windows Network device interoperability; Conflict with registered
use: commplex-main |
Unofficial/Conflict |
| 5060 |
TCP/UDP |
SIP (VoIP) |
|
| 5061 |
TCP/UDP |
SIP TLS (VoIP) |
|
| 5121 |
|
Neverwinter
Nights and its mods, such as Dungeon Eternal X |
Unofficial |
| 5190 |
TCP |
AOL
and AOL Instant Messenger |
Official |
| 5222 |
TCP |
XMPP/Jabber
- client connection |
Official |
| 5223 |
TCP |
XMPP/Jabber
- default port for SSL Client Connection |
Unofficial |
| 5269 |
TCP |
XMPP/Jabber
- server connection |
Official |
| 5432 |
TCP |
Postgre
SQL database system |
Official |
| 5517 |
TCP |
Setiqueue
Proxy server client for SETI@Home project |
Unofficial |
| 5800 |
TCP |
VNC
remote desktop protocol - for use over HTTP |
Unofficial |
| 5900 |
TCP |
ARD/VNC
remote desktop protocol - regular port |
Unofficial |
| 6000 |
TCP |
X11
- used for X-windows |
Official |
| 6112 |
UDP |
Blizzard's
Battle.net gaming service - Clonflict with registered use: dtspcd |
Unofficial/Conflict |
| 6346 |
TCP |
Gnutella
Filesharing |
Official |
| 6347 |
UDP |
Gnutella |
Official |
| 6600 |
TCP |
mpd
- default port that mpd listens on |
Unofficial |
| 6667 |
TCP |
IRC |
Unofficial |
| 6668 |
TCP |
IRC |
Unofficial |
| 6669 |
TCP |
IRC |
Unofficial |
| 6881 |
TCP |
BitTorrent
|
Unofficial |
| 6882 |
TCP |
BitTorrent |
Unofficial |
| 6891-6900 |
TCP/UDP |
MSN
Messenger (File Transfer) |
Official |
| 6901 |
TCP/UDP |
MSN
Messenger (Voice) |
Official |
| 7312 |
UDP |
Sibelius
License Server |
Unofficial |
| 8000 |
TCP |
iRDMI
(Often unofficially used for internet radio streams) |
Official |
| 8010 |
TCP |
XMPP/Jabber
file transfers |
Unofficial |
| 8080 |
TCP |
HTTP
Alternate |
Official |
| 8118 |
TCP |
Privoxy
web proxy |
Official |
| 11371 |
|
OpenPGP
HTTP Keyserver |
Official |
| 11576 |
|
IPStor
Server Management Communication |
Official |
| 20720 |
TCP |
Symantec
i3 Web GUI server |
Unofficial |
| 22136 |
TCP |
MXM endpoint administration |
|
| 27000-27006 |
UDP |
id Sofware's
QuakeWorld Master server |
Unofficial |
| 27010 |
|
Half-Life
and its mods |
Unofficial |
| 27015 |
|
Half-Life
and its mods |
Unofficial |
| 27374 |
|
Sub7's
default port. Most script kiddies do not change. |
Unofficial |
| 27500-27900 |
UDP |
id Software's
QuakeWorld |
Unofficial |
| 27960-27969 |
UDP |
id Software's
Quake III Arena and Quake III derived games |
Unofficial |
| 31337 |
TCP |
Back
Orifice - remote administration tool (often a trojan horse) ("31337"
is the leet speak version of "Elite") |
Unofficial |
| 49152-65535 |
TCP/UDP |
Dynamic
Port Range. No Official Registrations. |
|
