How to set up SNMP for zabbix server and linux host?

Question

linux

Good afternoon.
After reading and consulting with the guys from the forum, I decided to install Zabbix on my Linux server to monitor my hosts. I actually finished with the installation and with the basic configurations of zabbix-a,
figured out and installed zabbix agents on Linux and Windows machines, and it's time to move on to configuring SNMP for devices that do not support zabbix agents.
The question actually concerns how to install and configure snmp on the server and on the host (as an example, consider a Linux machine as a host).
As far as I understand, SNMP is not pre-installed with zabbix and it needs to be installed externally using install snmp, install snmpd (this is a daemon if I'm not mistaken) and so on.
I would like to learn from you in more detail how snmp is on the server and the Linux host.
More than once I write to the toaster with questions regarding network monitoring systems and often get quite valuable advice. It was the toaster that helped me move forward. Thanks guys. This is my first work, I hope everything will work out :)
Thank you in advance

Answer 1

SNMP is by default in the vast majority of network devices (switches, routers, some gateways), so you need to pull out or already know the necessary OIDs for monitoring characteristics (sometimes they are hidden in the bowels of the vendor's website or pulled out with tongs from the techpod). As an example, taking a Linux machine as a host is not a very good option - not the easiest one, in fact. Take some switch and go through it with the snmpwalk utility. The most regular OID - 1.3.6.1.2.1.1.3 - shows uptime. Must be on all pieces of iron and softins that support monitoring.
In zabbix, indicate that you need to get the desired oid, open monitoring on the pieces of iron (usually closed and may require authorization, as in the case of snmpv3) and look in zabbix.