The exercises of course called "Linuxin keskitetty hallinta" in Haaga-Helia University of Applied Sciences, autumn 2017. The exercises and a lot of the basic guides used in my answers can be found at our teacher's site: http://terokarvinen.com/
The course is in Finnish and so all my answers will be in Finnish also.
1.11.2017 H1 grumbles
The usual struggles of dusting old laptop and scouring the mind about things that it has not used in a while. The only way is up, silver linings and all that...