| port | illustrate |
|---|---|
| 0 | Invalid port, usually used to analyze the operating system |
| 1 | Transmission Control Protocol Port Service Multiplexer Selector |
| 2 | management utility |
| 3 | compression process |
| 5 | Remote job login |
| 7 | echo |
| 9 | throw away |
| 11 | online user |
| 13 | time |
| 17 | daily quote |
| 18 | message sending protocol |
| 19 | character generator |
| 20 | FTP file transfer protocol (default data port) |
| twenty one | FTP File Transfer Protocol (Control) |
| twenty two | SSH remote login protocol |
| twenty three | telnet (terminal emulation protocol), the Trojan Tiny Telnet Server opens this port |
| twenty four | Reserved for personal mail system |
| 25 | The port opened by the SMTP server for sending mail |
…
The post http, https, RTSP, RTMP and other common default ports first appeared on Lenix Blog .
This article is reprinted from https://blog.p2hp.com/archives/9519
This site is for inclusion only, and the copyright belongs to the original author.