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Well-Known Ports
Well-known TCP/IP Services and Port Numbers
Service | TCP/IP Port Number |
---|---|
DNS | 53 |
DHCP | 67 |
FTP (Data) | 20 |
FTP (Control) | 21 |
HTTP | 80 |
IMAP (Internet Message Access Protocol) | 143 |
LDAP (Lightweight Directory Access Protocol) | 389 |
NNTP (Network News Transfer Protocol) | 119 |
NTP (Network Time Protocol) | 123 |
POP3 | 110 |
SMTP | 25 |
SNMP (Simple Network Management Protocol) | 161 |
SSH (Secure Shell) | 22 |
Telnet | 23 |