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Port Number

Protocol Port numbers

ProtocolPortFunction
FTP 20 Data Transport
FTP 21 Provides flow control
SSH 22 Executes commands and moves files (remote login)
Telnet 23 connects remote computer to server
SMTP 25 Delivers email to email servers
DNS 53 Translates IPs to hostnames
TFTP 69 Transfers data (simple FTP and uses UDP)
HTTP 80 web page connection
POP3 110 Delivers email from a mailserver to a client
NNTP 119 Views and writes news articles for newsgroups
NTP 123 sets computers to sync up time
IMAP4 143 downloads email or email headers; stores, search newsgroups
HTTPS 443 Allows browsers and servers to sign, authenticate, and encrypt HTTP network packets using SSL
SFTP 22 Secure File Transfer Protocol is FTP over SSH
L2TP 1701 Layer Tunneling Secure protocol
WINS 1512 Windows Internet Naming Service
SNMP 161 Simple Network Protocol
LDAP 389 Lightweight Directory Access Protocol
Netbios 137 Netbios Naming service
PPTP 1723 Point to Point tunneling Protocol
Created by: digitalman30
Popular Computers sets

 

 



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