"Zabbix server is running: No" yet zabbix-serbvice is running. Huh?

[ThumbOne]

I installed Zabbix and its all looking good. I have an agent ad the server running and the UI.

$ service zabbix-server status
● zabbix-server.service - Zabbix Server
     Loaded: loaded (/usr/lib/systemd/system/zabbix-server.service; enabled; preset: enabled)
     Active: active (running) since Thu 2025-05-22 11:23:23 AEST; 1h 53min ago
   Main PID: 2383661 (zabbix_server)
      Tasks: 1 (limit: 38335)
     Memory: 9.8M (peak: 10.5M)
        CPU: 14.426s
     CGroup: /system.slice/zabbix-server.service
             └─2383661 /usr/sbin/zabbix_server -c /etc/zabbix/zabbix_server.conf

May 22 11:23:23 bigfoot systemd[1]: Starting zabbix-server.service - Zabbix Server...
May 22 11:23:23 bigfoot systemd[1]: Started zabbix-server.service - Zabbix Server.

$ service zabbix-agent status
● zabbix-agent.service - Zabbix Agent
     Loaded: loaded (/usr/lib/systemd/system/zabbix-agent.service; enabled; preset: enabled)
     Active: active (running) since Thu 2025-05-22 11:23:23 AEST; 2h 0min ago
   Main PID: 2383647 (zabbix_agentd)
      Tasks: 13 (limit: 38335)
     Memory: 9.4M (peak: 10.1M)
        CPU: 7.322s
     CGroup: /system.slice/zabbix-agent.service
             ├─2383647 /usr/sbin/zabbix_agentd -c /etc/zabbix/zabbix_agentd.conf
             ├─2383648 "/usr/sbin/zabbix_agentd: collector [idle 1 sec]"
             ├─2383649 "/usr/sbin/zabbix_agentd: listener #1 [waiting for connection]"
             ├─2383650 "/usr/sbin/zabbix_agentd: listener #2 [waiting for connection]"
             ├─2383651 "/usr/sbin/zabbix_agentd: listener #3 [waiting for connection]"
             ├─2383652 "/usr/sbin/zabbix_agentd: listener #4 [waiting for connection]"
             ├─2383653 "/usr/sbin/zabbix_agentd: listener #5 [waiting for connection]"
             ├─2383654 "/usr/sbin/zabbix_agentd: listener #6 [waiting for connection]"
             ├─2383655 "/usr/sbin/zabbix_agentd: listener #7 [waiting for connection]"
             ├─2383656 "/usr/sbin/zabbix_agentd: listener #8 [waiting for connection]"
             ├─2383657 "/usr/sbin/zabbix_agentd: listener #9 [waiting for connection]"
             ├─2383659 "/usr/sbin/zabbix_agentd: listener #10 [waiting for connection]"
             └─2383660 "/usr/sbin/zabbix_agentd: active checks #1 [idle 1 sec]"

May 22 11:23:23 bigfoot systemd[1]: Starting zabbix-agent.service - Zabbix Agent...
May 22 11:23:23 bigfoot systemd[1]: Started zabbix-agent.service - Zabbix Agent.

and yet on the UI I see no data anbd instead a warning on the bottom of the page about s server not running and sure enough:


That's a puzzle. I'm guessing there's a misconfiguration at play. Or the server is running but not running, as in running as a systemd service but stuck on something and reporting to queries that it's stuck or not reporting when queried etc.

[ThumbOne]

I have found the issue here. I was using a PostgreSQL cluster on a port other than the default and needed to configure the server with the port number. Doh! I found that in the log. In an ideal world, next the UI feedback there'd be a "Show log" link. And I'd have found it in an instant ;-)

[Verheyden]

I have the same problem. Where do I change the port number?

[cyber]

In server config file most probably... And in UI config file..

ideal world does not exist.. your webserver user most probably cannot read your zabbix server logs and as many people do, those are completely different servers... so reading is impossible..