The default port number of HTTP is 25,80,1024,80.

HTTP server, the default port number is 80/tcp (Trojan actuator opens this port);

Https (Secure Transfer Web Page) server, with the default port number of 443/TCP 443/UDP;

Telnet (Unsecured Text Transfer), the default port number is 23/tcp (the port opened by the mini Telnet server).

Extended data:

According to different service modes, ports can be divided into "TCP protocol ports" and "UDP protocol ports". Because computers generally use these two communication protocols to communicate with each other. The "connection mode" mentioned above is a direct connection with the receiver. After sending the information, you can confirm whether the information has arrived. This mode mostly adopts TCP protocol.

The other is to send information online without direct connection with the receiver, regardless of whether the information arrives or not, which is the "connectionless mode" introduced earlier. This way mostly adopts UDP protocol, and IP protocol is also a connectionless way. Ports provided by services using the above two communication protocols are also divided into "TCP protocol ports" and "UDP protocol ports".

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