Wednesday, March 24, 2010

Well-Known TCP Port Numbers

 

In TCP/IP and UDP networks, a port is an endpoint to a logical connection and the way a client program specifies a specific server program on a computer in a network. Some ports have numbers that are pre assigned to them by the IANA, and these are known as well-known ports (specified in RFC 1700). Port numbers range from 0 to 65536, but only ports numbers 0 to 1024 are reserved for privileged services and designated as well-known ports. This list of well-known port numbers specifies the port used by the server process as its contact port.

 Port Num Server room

 

 

 

 

 

 

 

 

 

 

 

Port Number

Description

1

TCP Port Service Multiplexer ( TCPMUX )

5

Remote Job Entry ( RJE )

7

ECHO

18

Message Send Protocol ( MSP )

20

FTP Data

21

FTP Control

22

SSH Remote Login Protocol

23

Telnet

25

Simple Mail Transfer Protocol ( SMTP )

29

MSG ICP

37

Time

42

Host Name Server ( Name server )

43

WhoIS

49

Login Host Protocol ( Login )

53

Domain Name Server ( DNS )

69

Trivial File Transfer Protocol ( TFTP )

70

Gopher Services

79

Finger

80

HTTP

103

X.400 Standard

108

SNA Gateway Access Server

109

POP2

110

POP3

115

Simple File Transfer Protocol ( SFTP )

118

SQL Services

119

Newsgroup ( NNTP )

137

NetBIOS Name Service

139

NetBIOS Datagram Service

143

Interim Mail Access Protocol ( IMAP )

150

NetBIOS Session Service

156

SQL Server

161

SNMP ( Simple Network Message Protocol )

179

BGP ( Border Gateway Protocol )

190

Gateway Access Control Protocol ( GACP )

194

Internet Relay Chat ( IRC )

197

Directory Location Service ( DLS )

389

Lightweight Directory Access Protocol ( LDAP )

396

Novell Netware Over IP

443

HTTPS

444

Simple Network Paging Protocol ( SNPP )

445

Microsoft – DS

458

Apple QuickTime

546

DHCP Client

547

DHCP Server

563

SNEWS

569

MSN

1080

Socks

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