I don't know about the other courses but Stephane's course is quite pacy and to the point. I actually did check out your course, specifically the cheat sheets. I think you've made a mistake in the NACL cheat sheet, inbound traffic does not automatically allow outbound traffic.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
I don't know about the other courses but Stephane's course is quite pacy and to the point. I actually did check out your course, specifically the cheat sheets. I think you've made a mistake in the NACL cheat sheet, inbound traffic does not automatically allow outbound traffic.