What do you need to know to consider yourself a Centos admin?

Question

System administration

Good afternoon toasters. Recently, I have been actively fond of the Centos distribution. At work, according to the manual, I raised the 1C server and after that the interest increased even more. Now I'm looking at manuals on how to raise and configure asterisk. Centos itself is very attractive with its capabilities. After that, the question arose how to become a Centos admin? What to do first in line, I mean what roles or settings to tinker with so that the skills develop well. And when can you consider yourself an administrator? Please provide your full opinion when answering.

Answer 1

Everything is the same as for another Linux distribution. Be able to install the OS, make basic settings. And then everything depends on the tasks: you need 1C - to be able to 1C, you need telephony - aster, friswich ... Actually, like in Windows.

Answer 2

Admin is a flexible concept. IT is such a direction where it is unrealistic to study everything, so it all depends on the requirements for the job. Have a task? Can you solve it? It means the job is worthy. If you can't, keep learning.
Asterix is ​​not part of centos, it is IP telephony, if you understand the settings, you can change and configure everything that is necessary for a small company, you can consider yourself an asterix administrator.
If you want to improve the skills of a Linux administrator, then learn the following:
bash / ksh / zsh - programming, scripts, regular expressions
network - routing, firewalls, vpns, ip services (dhcp / dns), monitoring, mail
work with storage media. quickly and easily connect / disconnect partitions, file systems, raids, network drives, boot drives
troubleshooting - how to fix if something is broken, how to search and understand what is broken, how to fix it.
Resource monitoring. Try to learn something like nagios/zabbix, or at least monit/mmonit
This is the minimum set for a beginner admin.

Answer 3

Hello, topic starter.
There are two answers to your question.
1) Suppose you want others to believe that you are a centos admin. Since Centos is a free Redhat, you can do the following: go to RHEL courses (if my memory serves me, this is RH124 RH125), and then take the RHCSA (RedHat Certified System Administrator) exam. The result - you have completed the necessary training and passed the exam, proving your right to be called a Redhat / Centos system administrator.
2) If we are talking about the experience of a system administrator, then given your ... let's say, ignorance, I would advise you to find the notorious redhat courses on torrents and go through them. From these materials, you will learn what core utils are, how to work with disks, how to configure basic services, kernel architecture, performance optimization, thousands and thousands of them!
You will succeed. Good luck.

Answer 4

Once, during an interview, they asked me if I was familiar with Linux, to which I replied that I don’t know how to administer, but I can install nginx, apache, configure virtual hosts, I know cron, I can install mysql, configure a little, I write scripts a little. After listening to all this, they answered me that a lot of people came to them for the admin vacancy to interview with lesser knowledge)

Answer 5

What is CentOS admin?
GNU/Linux administrator I understand. And what is "CentOS admin"?