zabbix_agent.conf vs zabbix_agentd.conf

[pmatsinopoulos]

Hello,

Can somebody explain to me the difference between these two files:

1) zabbix_agent.conf
2) zabbix_agentd.conf

And if I want to define UserParameter which file should I define it to?

Thanks in advance
Panayotis

[jan.garaj]

You can run Zabbix agent as:
1.) standalone daemon -> zabbix_agentd

https://www.zabbix.com/documentation/1.8/manual/processes/zabbix_agentd

OR
2.) Inetd service -> zabbix_agent

https://www.zabbix.com/documentation/1.8/manual/processes/zabbix_agent

If you run agent as standalone daemon (service zabbix_agentd start) than use zabbix_agentd.conf. Otherwise use zabbix_agent.conf.

Userparameters:
You can define userparameters in zabbix_agent(d).conf, but better option is if you create new <my_userparameters>.conf file. Then this file you include (Include directive) in your standard zabbix agent config.
Keep in mind some notes about include:

https://www.zabbix.com/documentation/2.2/manual/appendix/config/special_notes_include