Übersicht bekannter Ports und Protokolle
Die folgende Tabelle listet einige der wohlbekannten und registrierten Portnummern, ihre zugehörigen Transportprotokolle sowie die jeweiligen Dienste oder Anwendungen auf:
| Portnummer | Transportprotokoll | Dienst/Anwendung | Beschreibung |
|---|---|---|---|
| 20 | TCP | ftp-data | File Transfer Protocol — Daten |
| 21 | TCP | ftp | File Transfer Protocol — Kontrolle |
| 22 | TCP | ssh/sftp | Secure Shell / FTP über SSH |
| 23 | TCP | telnet | Telnet |
| 25 | TCP | smtp | Simple Mail Transfer Protocol |
| 53 | TCP/UDP | domain | Domain Name System |
| 67 | UDP | bootps | BOOTP/DHCP Server |
| 68 | UDP | bootpc | BOOTP/DHCP Client |
| 69 | UDP | tftp | Trivial File Transfer Protocol |
| 80 | TCP | http | HyperText Transfer Protocol |
| 110 | TCP | pop | Post Office Protocol |
| 123 | UDP | ntp/sntp | Network Time Protocol / Simple NTP |
| 143 | TCP | imap | Internet Message Access Protocol |
| 161 | UDP | snmp | Simple Network Management Protocol |
| 162 | UDP | snmp-trap | Simple Network Management Protocol Trap |
| 389 | TCP/UDP | ldap | Lightweight Directory Access Protocol |
| 443 | TCP | https | HTTP Secure (SSL/TLS) |
| 445 | TCP | smb | Server Message Block über TCP/IP |
| 514 | UDP | syslog | Syslog |
| 546 | UDP | dhcpv6-client | DHCPv6 Client |
| 547 | TCP | dhcpv6-server | DHCPv6 Server |
| 587 | TCP | smtps | SMTP Secure |
| 636 | TCP | ldaps | LDAP Secure |
| 993 | TCP | imaps | IMAP Secure |
| 995 | TCP | pop3s | POP3 Secure |
| 1433 | TCP | sql-server | Microsoft SQL Server |
| 1521 | TCP | sqlnet | Oracle SQL*Net |
| 3306 | TCP | mysql | MySQL/MariaDB |
| 3389 | TCP | rdp | Remote Desktop Protocol |
| 5004 | UDP | rtp | Real-Time Protocol |
| 5005 | UDP | rtcp | Real-Time Control Protocol |
| 5060 | TCP/UDP | sip | Session Initiation Protocol |
| 5061 | TCP/UDP | sips | SIP Secure |