Setup Guide for Icinga2 Agents

Requirements

Before setting up Icinga2 agents, the following requirements must be met:

The Icinga 2 master must be properly set up and running.
The Icinga 2 agent packages must be installed on the target system.
The Icinga 2 agents must be able to communicate with the master.

Installation

Install the Icinga 2 agent packages using the appropriate package manager.
```
# apt-get install icinga2
```
Generate a secure ticket for the Icinga 2 agent.
```
# icinga2 pki ticket --cn <FQDN>
```
Copy the ticket file to the Icinga 2 master.
Configure the Icinga 2 master to accept the agent connection.
```
# icinga2 node setup --ticket <ticket-id> --endpoint <FQDN>
```
Restart the Icinga 2 master service.
```
# systemctl restart icinga2
```

Enable and start the Icinga 2 agent service.

# systemctl enable icinga2
# systemctl start icinga2

Conclusion

Once the setup is complete, the Icinga 2 agent should be able to communicate with the Icinga 2 master and you should be able to monitor the target system.