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Line 55: − <code>tar xzf smeserver-nagios-complete-1.0.0.tgz<br>+ − + − <code>cd smeserver-nagios-complete-1.0.0<br>+ − + Line 68:
Line 68: − <code>cd smeserver-nagios-complete-1.0.0<br>+ − + − <code>/usr/lib/nagios/plugins/check_nrpe -H IPADDRESS</code><br>+ − + − + − + − <code>service nagios restart</code><br>+ − + − <code>service nrpe restart</code>+ − + − <code>+ − + − + − + − + − + − + − + − + − </code>
Please stop using extensive html codes <code></code> and <br> tags are not neccesarry
=== Installation ===
=== Installation ===
Download and unpack the tarball on your central Nagios server and on all other SME Servers you want to monitor:<br>
Download and unpack the tarball on your central Nagios server and on all other SME Servers you want to monitor:<br>
tar xzf smeserver-nagios-complete-1.0.0.tgz
cd smeserver-nagios-complete-1.0.0<br></code>
cd smeserver-nagios-complete-1.0.0
Edit install.sh and set the variable NAGIOS_CENTRAL_SERVER to the IP address of your central Nagios server. Use the local IP if you check the servers over the local network or over a VPN, otherwise use the WAN IP.
Edit install.sh and set the variable NAGIOS_CENTRAL_SERVER to the IP address of your central Nagios server. Use the local IP if you check the servers over the local network or over a VPN, otherwise use the WAN IP.
==== Central Nagios server installation ====
==== Central Nagios server installation ====
cd smeserver-nagios-complete-1.0.0
./install.sh central </code><br>
./install.sh central
Test the installation by pointing your browser to <code>https:<b></b>//nagios_central_server_ip/nagios/</code><br>
Test the installation by pointing your browser to <code>https:<b></b>//nagios_central_server_ip/nagios/</code><br>
Basic login in as admin.
Basic login in as admin.
==== NRPE installation on the servers to monitor ====
==== NRPE installation on the servers to monitor ====
cd smeserver-nagios-complete-1.0.0
./install.sh nrpe</code><br>
./install.sh nrpe
If the server is behind a firewall, you must forward port 5666/tcp to the server.<br>
If the server is behind a firewall, you must forward port 5666/tcp to the server.<br>
Test the installation by running this command on the central Nagios server:<br>
Test the installation by running this command on the central Nagios server:<br>
/usr/lib/nagios/plugins/check_nrpe -H IPADDRESS
Expected result: <code>NRPE v2.5.1</code>
Expected result:
NRPE v2.5.1
=== Configuration ===
=== Configuration ===
It is strongly recommended to read the [http://www.nagios.org/docs/ Nagios and NRPE documentation] to understand the principles of operation before you start to configure Nagios.
It is strongly recommended to read the [http://www.nagios.org/docs/ Nagios and NRPE documentation] to understand the principles of operation before you start to configure Nagios.
When changes to the nagios configuration were made, the service must be restarted:<br>
When changes to the nagios configuration were made, the service must be restarted:
service nagios restart
When nrpe.cfg was changed the nrpe service must be restarted:<br>
When nrpe.cfg was changed the nrpe service must be restarted:
service nrpe restart
==== Hints ====
==== Hints ====
* place all your configuration files in /etc/nagios/, the Logfile /var/log/nagios/nagios.log, the Log-Archives in /var/log/nagios/archives/ and the status file in /var/log/nagios/status.dat. These are the default settings. Leave them unchanged. The smeserver-nagios-backup RPM requires these settings to work properly.
* place all your configuration files in /etc/nagios/, the Logfile /var/log/nagios/nagios.log, the Log-Archives in /var/log/nagios/archives/ and the status file in /var/log/nagios/status.dat. These are the default settings. Leave them unchanged. The smeserver-nagios-backup RPM requires these settings to work properly.
* Set the following in /etc/nagios/cgi.cfg to grant full accces to the user admin:<br>
* Set the following in /etc/nagios/cgi.cfg to grant full accces to the user admin:
use_authentication=1
use_authentication=1<br>
authorized_for_system_information=admin
authorized_for_system_information=admin<br>
authorized_for_system_commands=admin
authorized_for_system_commands=admin<br>
authorized_for_configuration_information=admin
authorized_for_configuration_information=admin<br>
authorized_for_all_hosts=admin
authorized_for_all_hosts=admin<br>
authorized_for_all_host_commands=admin
authorized_for_all_host_commands=admin<br>
authorized_for_all_services=admin
authorized_for_all_services=admin<br>
authorized_for_all_service_commands=admin
authorized_for_all_service_commands=admin<br>
* On the NRPE Server you find a /etc/nagios/nrpe.cfg with many predefined commands. Modify them to fit your needs.
* On the NRPE Server you find a /etc/nagios/nrpe.cfg with many predefined commands. Modify them to fit your needs.
* It is a good idea to make your Nagios server as independent as possible from the infrastructure it monitors. That means use a dedicated hardware, network, firewall and internet connection if possible. Consider to setup a second Nagios somewhere inside your network, which monitors your central Nagios server.
* It is a good idea to make your Nagios server as independent as possible from the infrastructure it monitors. That means use a dedicated hardware, network, firewall and internet connection if possible. Consider to setup a second Nagios somewhere inside your network, which monitors your central Nagios server.