<

Network Port List

  Service 

Port

Protocol    Description 
 ftp-data

 20

 TCP  File Transfer Protocol (FTP) (default data)
 ftp

 21

 TCP  FTP (control)
 telnet

 23

 TCP  Telnet
 smtp

 25

 TCP  Simple Mail Transfer Protocol (SMTP) (email)
 nicname

 43

 TCP  whois  Internet directory service
 nicname

 43

 UDP  whois  Internet directory service
 domain

 53

 TCP  Domain Name System (DNS)
 domain

 53

 UDP  DNS
 tftp

 69

 UDP  Trivial File Transfer Protocol (TFTP)
 gopher

 70

 TCP  Gopher
 gopher

 70

 UDP  Gopher
 finger

 79

 TCP  Finger Protocol
 finger

 79

 UDP  Finger Protocol
 www-http

 80

 TCP  World Wide Web Hypertext Transfer Protocol (HTTP)
 kerberos

 88

 TCP  Kerberos authentication
 kerberos

 88

 UDP  Kerberos authentication
 pop3

 110

 TCP  Post Office Protocol (POP) version 3
 sunrpc

 111

 TCP  SUN Remote Procedure Call (RPC)
 sunrpc

 111

 UDP  SUN RPC
 auth

 113

 TCP  Authentication service
 auth

 113

 UDP  Authentication service
 nntp

 119

 TCP  Network News Transfer Protocol (NNTP)
 ntp

 123

 TCP  Network Time Protocol (NTP)
 ntp

 123

 UDP  NTP
 snmp

 161

 TCP  Simple Network Management Protocol (SNMP)
 snmp

 161

 UDP  SNMP
 snmptrap

 162

 TCP  SNMP system management messages
 snmptrap

 162

 UDP  SNMP system management messages
 imap3

 220

 TCP  Interactive Mail Access Protocol (IMAP) version 3
 imap3

 220

 UDP  IMAP version 3
 exec

 512

 TCP  Remote process execution
 login

 513

 TCP  Remote login
 who

 513

 UDP  Remote who  daemon (rwhod )
 cmd

 514

 TCP  Remote command (rsh )
 syslog

 514

 UDP  System log facility
 printer

 515

 TCP  Line printer daemon (LPD) spooler
 talk

 517

 TCP  Terminal-to-terminal chat
 talk

 517

 UDP  Terminal-to-terminal chat
 ntalk

 518

 TCP  Newer version of Terminal-to-terminal chat
 router

 520

 UDP  Routing Information Protocol (RIP)
 uucp

 540

 TCP  UNIX-to-UNIX Copy Protocol (UUCP)
 uucp

 540

 UDP  UUCP
 uucp-rlogin

 541

 TCP  Variant of UUCP/TCP
 uucp-rlogin

 541

 UDP  Variant of UUCP/IP
 klogin

 543

 TCP  Kerberized login
 klogin

 543

 UDP  Kerberized login
 pmd

 1642

 TCP  PortMaster daemon in.pmd 
 pmconsole

 1643

 TCP  PortMaster Console Protocol
 radius

 1645

 UDP  Remote Authentication Dial-In User Service (RADIUS)
 radacct

 1646

 UDP  RADIUS accounting
 choicenet

 1647

 UDP  ChoiceNet
 l2tp

 1701

 UDP  Layer 2 Tunneling Protocol
       
       Interdevice Net File System Protocol
       Device Network Protocol
       Chip Network Protocol