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  / _ \
\_\(_)/_/
 _//"\\_  JOHLEM.net
  /   \	  https://johlem.net/
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Usefull netcat command to know:

    Port scanning: nc -v -n -z -w 1 <IP address> 1-65535
    File transfer: nc -l -p <port> > <file> (to receive) and nc <IP address> <port> < <file> (to send)
    Remote shell: nc -l -p <port> -e /bin/bash (to start a listener) and nc <IP address> <port> (to connect and get a shell)
    Network sniffing: nc -l -p <port> | tee <file>
    Port redirection: nc -l <local port> -c <command> and nc <IP address> <local port>
    Chatting: nc -l <port> (to start a listener) and nc <IP address> <port> (to connect and chat)
    Checking a service availability: nc -v <IP address> <port>
    HTTP requests: nc <IP address> <port> (then type the request and press enter twice)

Note: netcat is a powerful and versatile command-line tool that can be used for a wide range of network-related tasks. 
The commands listed above are just examples of what you can do with netcat, but it has many more capabilities.