Zabbix-agent is not available for 3m docker

Question

I have installed zabbix-agent on a Linux server. Changed IP address and hostname. Then restart zabbix-agent. Seems to run

 zabbix-agent.service - Zabbix Agent
     Loaded: loaded (/usr/lib/systemd/system/zabbix-agent.service; enabled; vendor preset: disabled)
     Active: active (running) since Wed 2022-09-21 16:43:09 CEST; 16min ago
    Process: 511720 ExecStart=/usr/sbin/zabbix_agentd -c $CONFFILE (code=exited, status=0/SUCCESS)
   Main PID: 511722 (zabbix_agentd)
      Tasks: 6 (limit: 97584)
     Memory: 3.8M
        CPU: 339ms
     CGroup: /system.slice/zabbix-agent.service
             ├─511722 /usr/sbin/zabbix_agentd -c /etc/zabbix/zabbix_agentd.conf
             ├─511723 "/usr/sbin/zabbix_agentd: collector [idle 1 sec]"
             ├─511724 "/usr/sbin/zabbix_agentd: listener #1 [waiting for connection]"
             ├─511725 "/usr/sbin/zabbix_agentd: listener #2 [waiting for connection]"
             ├─511726 "/usr/sbin/zabbix_agentd: listener #3 [waiting for connection]"
             └─511727 "/usr/sbin/zabbix_agentd: active checks #1 [idle 1 sec]"

Sep 21 16:43:09 localhost.localdomain systemd[1]: Starting Zabbix Agent...
Sep 21 16:43:09 localhost.localdomain systemd[1]: Started Zabbix Agent.

but the agent does not connect to the server. I get this

could someone help ??? thanks strong text

Answer 1

The Host name is Zabbix server (case sensitive), in otherwords, there is a Zabbix Agent running in you Zabbix Server to monitoring it. You can see it in your image or in Data collection - Hosts.

This Host Name MUST the same that in Hostname line in zabbix_agentd.conf (or ZBX_HOSTNAME if you use a Zabbix Agent docker container). These need to match. So, in this file do:

1. Configure Server line to:

Server=127.0.0.1 # or Zabbix Server IP/hostname

2. Configure Hostname line to:

Hostname=Zabbix server # literal

and restart the Zabbix Agent service.

If this doesn't work, in Zabbix Web Interface:

1. go to Data collection - Hosts
2. click in the Name of host
3. configure the Dns name to your host name (the hostname that Zabbix Agent knows) and select DNS
4. You can see more details in Zabbix forum