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This article mainly explains "what is the use of Linux nc command". Friends who are interested might as well take a look. The method introduced in this paper is simple, fast and practical. Next, let the editor take you to learn "what is the use of Linux nc commands?"

Server side:

Nc-l 9000 means to listen on the local TCP 9000 port and wait for a connection

Client side:

Nc 127.0.0.1 9000 means that the local TCP 9000 port is connected, and messages can be sent and received by the server.

Nc-z-v-n 127.0.0.1 21-25

The above command can be run in TCP or UDP mode. By default, the TCP,-u parameter is adjusted to udp.

Z parameter tells netcat to use 0 IO, close the connection immediately after the connection is successful, and do not exchange data.

V parameter refers to the detailed output.

The n parameter tells netcat not to use DNS to reverse query the domain name of the IP address.

The above command prints all open ports from 21 to 25.

At this point, I believe you have a deeper understanding of "what is the use of the Linux nc command?" you might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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