Hint for HELP

Type your comment> @shadow1warrior said:

When I run a Nmap scan (nmap -sV -sC -oA nmap 10.10.10.121) the result I get is:
“PORT STATE SERVICE VERSION
25/tcp open tcpwrapped
|_smtp-commands: Couldn’t establish connection on port 25”

I also tried “enum4linux” but didn’t get anything.
How should I proceed from here? Need some help/guidance…

I think you should start by studying and learning. There are lots of videos with walkthroughs, check for example ippsec channel wich absolutely great. Also read writeups.
You have to build a base of knowledge.