What parts of linux, nuances do you need to know in order to administer nginx?

Question

linux

What do you need to know about linux besides systemctl to keep your web server up and running?

Answer 1

The most important thing is not to be lazy to make a backup of the nginx configuration every time before making changes.
Well, actually, you need to start with the basic network concepts. The ability to use Linux utilities is achieved with a single man command or the --help option for each utility.
Well, no one canceled Google. If you think that Linux gurus remember all the commands by heart, you are mistaken.

Answer 2

to start the server, you can not even know systemctl - poke buttons in the windows.
but when something abnormal happens (and it will happen without fail), then recovery may require a variety of knowledge, starting from assembling the kernel, knowledge of all network utilities, etc. and so on