Why the labs doesn't always follow the course?

Why the course speak about nginx and the lab is about squid?
Before you change the content of the course, you’ve already done that with ufw:
Aaron were showing ufw and the labs was about firewalld, and now it’s only ufw

There is a difference between the udemy course and the kodekloud course?
This is messy and it doesn’t make me feel confident about the course

The course was very recently updated – within the last week or so – but the Udemy and KodeKloud versions of the course are updated in sync.

As for the labs – we do put material in the labs that supplement what’s in the lectures, as a means of reinforcing the points we’re trying to get across in the lectures. So you will see things in the labs that aren’t in the lectures. And that’s a good thing.