Task:
From your host at 10.0.0.1, listen on port 31337 for a connection from the remote host at 10.0.0.2.

🧠 Understanding the Challenge

In networking, one host listens on a port, and the other connects to it. This challenge tests your ability to set up a listener using netcat, allowing a remote host to connect to you.

  • This is the reverse of the usual connection setup.
  • Once the connection is established, it becomes bidirectional (both sides can send/receive data).

🛠️ Solution with Netcat

We use the -l option to make nc listen on the given port.

✅ Command:

nc -l 31337

This command makes your system listen for incoming TCP connections on port 31337.

Example Output

root@ip-10-0-0-1:~# nc -l 31337
pwn.college{0h540UntOHZbNDCltCqzci-c4YR.QXwYzMzwSM0IzMyEzW}
root@ip-10-0-0-1:~#