CODEWITHSUNDEEP
opennms
Hiren Thakor
Hiren Thakor

Reputation: 1

the centreon 18 is not working with remote polller and remote servers. why?

I have been trying to install distributed monitoring environment on my network for very long time using Centreon but whenever I install the remote poller or remote server, either it can't even show there or nothing happen. If someone had tried this, please let me know the step-by-step process.

Note: I had try every single document from he centreon but it's not working for me.

Upvotes: 0

Views: 1080

Answers (1)

Rom
Rom

Reputation: 76

1 Network flows opening

From: Poller To: NTP server Protocol: NTP Port: UDP 123 Application: Synchronization of the system clock

From: Poller To: DNS server Protocol: DNS Port: UDP 53 Application: Domain name resolution

From: Poller To: SMTP server Protocol: SMTP Port: TCP 25 Application: Notification via email

From: Poller To: Repository Protocol: HTTP (FTP) Port: TCP 80 (FTP 20,21) Application: Repository for system and application packages

From: Central server To: Poller Protocol: SSH Port: TCP 22 Application: Export of Centreon configuration

2 Poller setup

Use the ISO Linux based on CentOS distribution or RPM packages available for CentOS distribution.

Online documentation on poller installation: https://documentation.centreon.com/docs/centreon/en/19.04/installation/from_iso.html

3 Exchanging SSH keys

The communication between the central server and a poller server is done via SSH. You must exchange the SSH keys between the two servers.

If you don’t have any private SSH keys on the central server for the centreon user:

# su - centreon
$ ssh-keygen -t rsa

Copy this key to the new server:

# su - centreon
$ ssh-copy-id -i .ssh/id_rsa.pub centreon@IP_POLLER

The password of the centreon user is centreon. It can be easily changed using the passwd command.

4 Configure the poller in Centreon web interface

Go to the Configuration > Pollers menu and click on Add server with the wizard to configure a new poller.

Select Add a Centreon Poller and click on Next. Type in the name, the IP address of the poller and IP address of the Central Server.

Then click on Apply to register this new poller in Centreon.

It takes a few seconds for the wizard to configure your new poller in the system.

5 Monitor your host from this new poller

In the Configuration > Host page, you now have this poller entry in the Monitored from list field. Select it for each host.

According to the kind of monitoring protocol you are using for each dedicated host, don't forget to open/configure the network flow between the poller and the host (ICMP, SNMP, HTTP, ..)

Upvotes: 1

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