TLDR
Enter a command. For example: tac, rapper, sleep, docker build.

nc

 
Netcat is a versatile utility for working with TCP or UDP data. More information: https://nmap.org/ncat.
 
  • Listen on a specified port and print any data received:
     
    nc -l {{port}}
     
  • Connect to a certain port:
     
    nc {{ip_address}} {{port}}
     
  • Set a timeout:
     
    nc -w {{timeout_in_seconds}} {{ipaddress}} {{port}}
     
  • Keep the server up after the client detaches:
     
    nc -k -l {{port}}
     
  • Keep the client up even after EOF:
     
    nc -q {{timeout}} {{ip_address}}
     
  • Scan the open ports of a specified host:
     
    nc -v -z {{ip_address}} {{port}}
     
  • Act as proxy and forward data from a local TCP port to the given remote host:
     
    nc -l {{local_port}} | nc {{hostname}} {{remote_port}}

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