Common TCP / UDP Ports List

Posted By Chris Stinson in General on June 7, 2007

Here are a few TCP / UDP Ports you might come across. It is useful when applying TCP/IP Filtering to make sure all your services continue working

Port	Protocol	Description
20	TCP	FTP (File Transfer Protocol) – data port
21	TCP	FTP – control (command) port
22	TCP	SSH (Secure Shell) – used for secure logins, file transfers (scp,sftp) and for forwarding
23	TCP	Telnet protocol – Unencrypted text communications
25	TCP	SMTP (Simple Mail Transfer Protocol) – used for sending emails
53	TCP	DNS (Domain Name Server)
70	TCP	Gopher protocol
79	TCP	Finger protocol
80	TCP	HTTP (Hyper Text Transfer Protocol)
88	TCP	Kerberos – Authenticating agent
110	TCP	POP3 (Post Office Protocol version 3) Email retrieval
119	TCP	NNTP (Network News Transfer Protocol) – Used to retrieve newsgroup messages
123	UDP	NTP (Network Time Protocol) – Used for time synchronization
139	TCP	NetBIOS
143	TCP	IMAP4 (Internet Message Access Protocol) Used to retrieve email
161	UDP	SNMP (Simple Network Management Protocol)
179	TCP	BGP (Border Gateway Protocol)
194	TCP	IRC (Internet Relay Chat)
389	TCP	LDAP (Lightweight Directory Access Protocol)
443	TCP	HTTPS – HTTP over SSL (encrypted transmission)
445	TCP	Microsoft-DS (Active Directory, Windows shares, Sasser Worm, Agobot, Zobot Worm)
445	UDP	Microsoft-DS SMB file sharing
514	UDP	Syslog Protocol – Used for system logging
540	TCP	UUCP (Unix-to-Unix Copy Protocol)
554	TCP	RTSP (Real Time Streaming Protocol)
636	TCP	LDAP over SSL (encrypted transmission)
993	TCP	IMAP4 over SSL (encrypted transmission)
995	TCP	POP3 over SSL (encrypted transmission)
1080	TCP	SOCKS proxy
1194	UDP	OpenVPN
1433	TCP	Microsoft SQL database system
1434	TCP	Microsoft SQL Monitor
1434	UDP	Microsoft SQL Monitor
1521	TCP	Oracle database default listener
1723	TCP	Microsoft PPTP VPN
1723	UDP	Microsoft PPTP VPN
1863	TCP	MSN Messenger
2082	TCP	CPanel’s default port
2083	TCP	CPanel’s default port for SSL connection
2086	TCP	WebHost Manager’s default port
2087	TCP	WebHost Manager’s default port for SSL connections
2095	TCP	CPanel’s default port for webmail connections
2096	TCP	CPanel’s default port for webmail connections via SSL
3306	TCP	MySQL Database System
3389	TCP	Microsoft Terminal Server (Remote Desktop, RDP), Windows Based Terminal (WBT)
5190	TCP	AOL and AOL Instant Messenger
5222	TCP	XMPP/Jabber – client connection
5223	TCP	XMPP/Jabber – default port for SSL Client Connection
5269	TCP	XMPP/Jabber – server connection
5432	TCP	Postgre SQL database system
5517	TCP	Setiqueue Proxy server client for SETI@Home project
5800	TCP	VNC remote desktop protocol – for use over HTTP
6667	TCP	IRC
6668	TCP	IRC
6669	TCP	IRC
6891-6900	TCP/UDP	MSN Messenger (File Transfer)
6901	TCP/UDP	MSN Messenger (Voice)
8000	TCP	iRDMI (used for internet radio streams)
8080	TCP	HTTP Alternate
31337	TCP	Back Orifice – remote administration tool (often a trojan)
49152-65535	TCP/UDP	Dynamic Port Range.

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4. Block IP Addresses using IP Security Policy in Windows Server 2003
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2 Responses to “Common TCP / UDP Ports List”

1. IIS Hacks | Server Resources » TCP / IP Filtering For Windows

   June 7, 2007 at 4:32 pm

   [...] Link to enabling TCP/IP Filtering on Windows[...]

   Reply
2. 

   m4gus

   August 4, 2007 at 8:11 pm

   I find it interesting that you put port 5800 for VNC over HTTP but not the accompanying port of 5900 which is the direct VNC port.

   Reply