I have a linux problem and can't figure out how to do it. It is working with tcpdump and firewalls. Please see below for what to do. It is between 2 VMs (Server SRV IP - 172.16.30.10) (Client CLT IP -172.16.31.10)

capture traffic on server & view data sent to server from client

On the server: Execute tcpdump with useful options: capture traffic on eth1 (network card) from/to your server, display numeric values for hosts and services (port numbers), display ASCII output, display readable time format.

On the server: Start an nc server on port 59999.

On the client: Connect to the nc server using an nc client.

Chat between server & client and view the messages being displayed in clear-text in your tcpdump output.

Store the tcpdump command line (not the tcpdump output) in a text file called tcpdumpMN.cli.