Monitoring service via Zabbix Agent

[new2zabbix925]

Hello, I've installed and been using Zabbix 3.4 for the past 2 days. I am trying to create a simple trigger that alerts whenever a service is down on a server that has Zabbix Agent installed.

I have configured the UserParameter in the Zabbix Agent configuration file:
UserParameter=testing,systemctl is-active nginx

On the Zabbix server side, I've configured the template, the item (with the key set to "testing" and Type of information set to "Text"), and a trigger of {template:testing.regexp(inactive)}=0

I simulated the process by stopping the service and it triggers as expected (Dashboard showing the status 'PROBLEM') but when I start the service again, it should be showing the status 'RESOLVED'.

Am I doing something wrong here? Please enlighten. Thank you and have a nice day.

[Pitons]

Hi

Open triger and find:
OK event generation put it on "Recovery expression"
{template:testing.regexp(inactive)}=[VALUE of OK state]

should work then!

[kaspars.mednis]

Your trigger expression is wrong, because your function

{template:testing.regexp(inactive)}=0

means to fire a trigger when *inactive is not found*, i wonder how you get it working...
regexp returns:1 - found 0 - otherwise

change it to

template:testing.regexp(inactive)}=1

or

template:testing.str(inactive)}=1

you dont need a recovery expression there

tested on Centos 7.4, both triggers works like a charm

P.S

you can make your user parameter more universal, by changing it to

UserParameter=testing[*],systemctl is-active $1

then you can check every systemctl supported service by using

testing[service_name]

Regards,
Kaspars

[new2zabbix925]

@Pitons: Thank you!

@Kaspars: Ah maybe I was doing too much changes that I get confused. Thank you!

Cheers