Simple Zabbix POC failing. What's wrong?

[olegus]

I'm trying to setup the simplest Zabbix POC possible -
- Zabbix server in docker
- Zabbix agent on server's host
- Zabbix agent on my desktop

and I could not figure out how to make them talk on each other.

I use official zabbix docs to install server from docker-compose - https://www.zabbix.com/documentation...docker-compose
I installed agent2 by

sudo apt install zabbix-agent2

I run it by

sudo systemctl start zabbix-agent2

I did not change agent conf file as it seems it points correctly to 127.0.0.1 server
My host system is Ubuntu 22.04
I can open Zabbix web at 192.168.x.x/zabbix
Server cannot communicate with agent -



127.0.0.1 can be pinged from docker
but zabbix get returns error



zabbix agent log does not show any errors

2023/12/20 04:07:02.868336 [Modbus] Config is valid
2023/12/20 04:07:02.868413 Plugin communication protocol version is 6.0.13
2023/12/20 04:07:02.868438 Zabbix Agent2 hostname: [Zabbix server]
2023/12/20 04:07:02.868584 starting manager
2023/12/20 04:07:02.868606 [101] starting memory cache
2023/12/20 04:07:02.868700 [101] starting server connector for [127.0.0.1:10051]
2023/12/20 04:07:02.868745 [0] starting listener for '0.0.0.0:10050'
2023/12/20 04:07:02.869278 listening for control connections on /tmp/agent.sock
2023/12/20 04:07:03.869333 [101] In refreshActiveChecks() from [127.0.0.1:10051]
2023/12/20 04:07:03.870597 [101] End of refreshActiveChecks() from [127.0.0.1:10051]
2023/12/20 04:07:03.870618 [101] processing update request (0 requests)
2023/12/20 04:07:03.870633 [101] skipping empty update for unregistered client

ufw is inactive

it looks like it fails to listen on 10050 tcp ?

netstat -na | grep 10051
tcp 0 0 0.0.0.0:10051 0.0.0.0:* LISTEN
tcp6 0 0 :::10051 :::* LISTEN

netstat -na | grep 10050
tcp6 0 0 :::10050 :::* LISTEN

Here is also ss -nltp output

ss -nltp | grep 10050
LISTEN 0 4096 *:10050 *:*

On my windows desktop I installed agent from msi.
zabbix get returns 1 fro this agent
zabbix_get -s 192.168.0.141 -k agent.ping

I added new Host for my desktop , but it shows grey

What to try next?
Also, should I manually add a Host on server after installing agent on machine? Can it be done automatically? We were planning to install Zabbix to monitor ~700 hosts and it will be a real showstopper if we auto onboarding does not work.

[tim.mooney]

All your questions are answered by the Zabbix documentation. You're definitely going to want to be familiar with the documentation and the product's features to get the best configuration for your site, so why not take a look at the documentation now?

Third sentence in the overview for items: "Once you have configured a host, you must add items to get actual data." Items: https://www.zabbix.com/documentation...l/config/items

Automatic host discovery: https://www.zabbix.com/documentation...work_discovery

[olegus]

Thanks for responding and for the links, they give me a hint why my host is grey and how to automate discovery.

I dont see an answer to my main question - how to setup an agent on Host to talk to Server running in docker on the same host? What is wrong with my networking?

Thanks.