60 lines
2.3 KiB
Markdown
60 lines
2.3 KiB
Markdown
# zabbix
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## Setting Up Monitoring for a Postfix Service
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### On the Mail Server
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1. Edit the Zabbix agent configuration file:
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`vim /etc/zabbix/zabbix_agent2.d/postfix.conf`
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2. Add the following line:
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`UserParameter=postfix.running,script /tmp/postfix-script-zabbix.log -qc 'sudo postfix status' | grep -c 'PID'`
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3. Ensure your Zabbix agent is configured for active checks by checking these parameters in your `/etc/zabbix/zabbix_agent2.conf`:
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```
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ServerActive=your_zabbix_server_ip
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HostnameItem=system.hostname
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```
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4. Restart the Zabbix agent:
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`systemctl restart zabbix-agent2`
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5. Check the status of the Zabbix agent:
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`systemctl status zabbix-agent2`
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The mail server's Zabbix agent will now collect the Postfix status using a script command and report that data back to the Zabbix server. The Zabbix server must then be configured to processes this information and handle alerting.
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### In the Zabbix web interface:
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1. Create a new item for your host
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`Data collection -> Hosts -> Items (column next to the desired host) -> Create item (at top right)`
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2. Set the following parameters:
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- Name: `Monitor postfix service`
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- Type: `Zabbix agent (active)`
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- Key: `postfix.running`
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- Type of information: `Text`
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- Description (optional): `Monitor postfix service.`
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3. Click "Add" to save the item
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4. Create a trigger based on the return value
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`Data collection -> Hosts -> Triggers (column next to the desired host) -> Create trigger (at top right)`
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5. Set the following parameters (Replace instances of `mail_server_hostname` with your actual host name in Zabbix):
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- Name: `Postfix service is not running on {HOST.NAME}`
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- Severity: `High`
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- Problem expression: `last(/mail_server_hostname/postfix.running)=0`
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- OK event generation: `Recovery expression`
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- Recovery expression: `last(/mail_server_hostname/postfix.running)>0`
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- PROBLEM event generation mode: `Single`
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- OK event closes: `All problems`
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- Description (optional): `Postfix has stopped running.`
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6. Click "Add" to save the trigger
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This trigger will fire when the Postfix check returns 0 (not running) and will automatically resolve when the check returns a value greater than 0 (running). |