i- installation of any Linux OS on your Server
ii- Troubleshooting of any issue related to Linux server
iii- installation and setup of any software on Linux server
iv- shell/bash scripting to automate the process on your Linux server
I am also working on Fiverr. The link to my Fiverr profile is mentioned below you can check customer reviews there.
https://www.fiverr.com/users/nomi04_549