What should a beginner Linux administrator know?

Question

linux

Good afternoon, I used to work as a Windows administrator, but now I would like to learn how to work with servers (fryakha, ubunta), I would like to learn from those who know. Where can you start learning? There are initial skills of working with tench (was ubuntu 8.04). Well, what are the standard requirements for Linux admins. That is, for example, the standard stack for Windows: AD, Exchange, DNS, MSSql. What are the standard stacks for Linux?
If there are sensible courses, then I would very much like to hear about such ones (gikbrains - xs too conflicting reviews)

Answer 1

Kirill Semaev should be suitable for a start.

Answer 2

Here is an example of a standard stack for Windows: AD, Exchange, DNS, MSSql.

A mixture of a toad and a motorcycle is not a stack. DNS is a part of AD, and a very significant one, but knowledge of DNS separate from AD is useless for a Windows admin.
In Linux, you need to know exactly as much as is necessary to solve the problem. And a little more :)
- Why distribution A is better / worse than distribution B (the wrong choice of distribution seriously complicates life :) )
- How the system starts and how to enter it if you forgot the root password, but you need to
- What are the file systems, why are they better or worse than each other, why was LVM invented and how to manage it
- What is iptables and why is it. And also how to configure it, at least through webmin. That is, it is not necessary to immediately be able to write rules manually, but you need to know how they work
- How to load a kernel module, remove it, register it in autoload
- How to add/remove a service to startup
- How to install/remove/check for a package, how to install a kernel/package update/bald trait
- What is sudo, what is it for, how is it different from su
- Why you can't log into the system as root , but only when full .opa)
- What is ssh, why is it better to use a public key rather than a password
- What is NAT, why is it and why it is impossible to connect two machines behind nat without an intermediary server
- What is VPN, why is it and what they are (Hint - VPN - not necessarily PPTP, as in Windows)
And this is not counting the questions on setting up the services that the server itself carries - apache, samba, mail, VCS, thousands of them ...

Answer 3

It is necessary to know actually how the system is loaded and works.
Access rights, bash, iptables, LVM, work with repositories of a specific distribution.
Read Unix and Linux. System Administrator's Guide
Authors: Evi Nemeth, Garth Snyder, Trent R. Hein, Ben Whaley
There is no standard "stack" for Linux, because Linux is very diverse in the server environment.
It hosts web servers, databases, various developer tools and CI tools, application servers, virtual machines, containers ...
Well, you can navigate to www.lpi.org
And yes, it is nearby, but do not confuse Linux and fryahu.

Answer 4

Evi Nemeth "Unix and Linux System Administrator's Guide"

Answer 5

In principle, the requirements for *nix admin are the same as for Windows.
Those. be able to deliver, configure, maintain and monitor.
But there is no standard "stack".
There are a lot of solutions from vendors, besides this, there are a lot of open source solutions, and the Cartesian product of their combinations.
Those. basic things for all * nix are more or less the same.
But the details can be very different.
For example, in Yntyrprize, Redhat / CentOS is popular.
But you can also stumble upon ubuntu/debian.
Therefore, only practice will help you :-)