04 18-2018--netcat port-80_blue
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To listen for connections on port 80 on the blue VM using netcat: 1. Log into the blue VM as the root user and execute the command "nc -lvp 80" to listen on port 80 using netcat in listening mode. 2. On the red VM as root, execute "nc -nv 10.0.2.12 80" to connect to port 80 on the IP address 10.0.2.12 of the blue VM. 3. Any text entered on the red VM will appear on the blue VM, demonstrating the connection. Terminating netcat on the red VM will also terminate the listener on the blue VM.
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04 18-2018--netcat port-80_blue
- 1. How do I use netcat to listen for connections on port 80 on blue?
- 2. 1. Turn on red and blue VM’s. Log onto root for blue. • Execute the following command : ‘nc –lvp 80’ • ‘nc’ is the netcat command • -l is the listening flag where it will listen to a specified port ( -p ) • -v is the verbose flag where output is generated onto the terminal. • -p is the port command, where we specify a port to do a task on ( in this case we are listening to port 80 ) • ‘80’ is the specified port
- 3. 2. Execute ‘nc –lvp 80’
- 4. You are now listening on port 80 on blue! • Go onto red and execute the following as root : ‘nc –nv 10.0.2.12 80’ • -n is a flag. This is used to stop a DNS lookup. • -v is verbose, where output is printed. • We are connecting to ‘10.0.2.12’ and port ‘80’ on that machine. • Once executed, type some text to test the connection. You should see the text written on red appear on blue!
- 5. Output on both machines :
- 6. Once we cancel netcat on the connecting machine ( red).. Blue stops to listen :