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 [email protected] 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. |
|