TCP UDP Ports
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Some common TCP and UDP port numbers, for a more complete list see http://www.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers
| Port | Transport | Application | Notes / Comments |
|---|---|---|---|
| 20 | TCP | FTP | Data transfer |
| 21 | TCP | FTP | Control |
| 22 | TCP | SSH | |
| 23 | TCP | Telnet | |
| 25 | TCP | SMTP | |
| 53 | UDP | DNS | |
| 67 | UDP | DHCP | |
| 80 | TCP | HTTP | |
| 110 | TCP | POP3 | |
| 123 | TCP | NTP | |
| 143 | TCP | IMAP | |
| 161 | UDP | SNMP | Gets (polling), initiated to managed device |
| 162 | UDP | SNMP | Traps, initiated from managed device |
| 389 | TCP | LDAP | |
| 443 | UDP | HTTPS | HTTP over SSL or TLS |
| 445 | TCP | SMB | |
| 903 | TCP | VMware | VM remote console on ESX host |
| 989 | TCP | FTPS | FTP data over SSL or TLS |
| 990 | TCP | FTPS | FTP control over SSL or TLS |
| 993 | TCP | IMAP | Over SSL |
| 1433 | TCP | MS SQL | |
| 3260 | TCP | iSCSI | |
| 3306 | TCP | MySQL | |
| 3389 | TCP | RDP | |
| 5900 | TCP | VNC | |
| 6501 | TCP | VMware | Auto Deploy |
| 6502 | TCP | VMware | Auto Deploy |