Netcat: Creating a Listening Port

Creating a Listening Port

Having a server that listens is good, but when testing with a firewall and you don't necessarily have the listening port behind it yet, you can simply use the Netcat command.

This command will act as if it were a server-type service that starts listening:

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nc -l numero_du_port

or

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nc -lp numero_du_port

The command varies depending on the version of netcat.

If you want the connection to remain open:

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nc -lk numero_du_port

Then all you need to do is test it:

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nc @IP numero_du_port

Resources

• Netcat: Remote Partition Backup
• Netcat: File Transfer
• Netcat Documentation
• Useful Uses Of netcat