his network activity observation should be done via netstat. You$$ll need to continu$-$

ously monitor the output of the netstat command. This must be automated$/$scripted$.$

a$)$ The watch, grep, and netstat commands could be one way to do this.

b$)$ Grab readings every $30$ seconds and filter for socket connections that are in

state ESTABLISHED or LISTEN $($this should all be done with a command

line or bash script $-$ do not filter manually$).$ You will need to find out the

command to use here. Tip: print the current time every $30$ seconds before the

data that you are grabbing so you can distinguish the different time steps.