The Key is a Strong Foundation
Meow - Challenge Setup
Meow
I connected to their OpenVPN service as I have my own AttackBox locally on my machine.

I then spawned the machine:
We get the IP, and then the questions unlock. Let’s answer the basic ones first, then check the machine.
Task 1

Task 2

Task 3

Task 4

Task 5

Task 6
If you don’t know protocol numbers, you may need to scan the machine to check!
For fun, I ran the scan anyway:

Task 7
This one is easy too ;)

Task 8 (Challenge Flag)
root was the valid and correct login, no password required.
Flag:
