== 4.0 Server Installation (using yum utility)==

Make sure you've installed the following packages on your Fedora 13 installation before continuing.

'''4.3 Configure the Web Interface'''

<code>htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin </code>

Type the password: (your password is here)

<code>cfg_file=/etc/nagios/objects/linux-romania.cfg</code>

2. Open nrpe.cfg and edit it with your favourite editor.

<code>vi /etc/nagios/nrpe.cfg</code>

<pre>

Note: In the nrpe.cfg the following lines can be modified to meet the current system needs

</pre>

<code>command[check_users]=/usr/lib64/nagios/plugins/check_users -w 5 -c 10</code>

and add the following definition to the file:

<code>define command{</code>

</pre>

'''4.7 Contacts Configuration File'''

}

</pre>

<code>ScriptAlias /nagios/cgi-bin/ "/usr/local/sbin/"</code>

<code># SSLRequireSSL</code>

<code>Alias /nagios "/usr/share/nagios/html"</code>

<code># SSLRequireSSL</code>

<code>vi /etc/nagios/nrpe.cfg</code>

comment out the line:

2. Change ownership on the plugins directory to reflect ownership to nagios.

<code>chown nagios.nagios /usr/lib64/nagios/plugins</code>

== 5.0 Setting up the Remote Host (using yum utility) ==

1. To install the nrpe daemon and nagios plugins run the following commands.

<code>yum -y install Nagios-plugins-all</code>

Add an allowed_hosts IP Address to nrpe.cfg file eg. 142.204.133.123 (chile’s IP Address):

3. Test the nrpe daemon locally using the command:

<pre>Note: The output of the command should look something like this:

4. Add a firewall rule to the INPUT chain

5. Save the firewall settings so it survives reboot

<code>/etc/nrpe.d</code> -> contains the daemon

<code>/usr/share/docs/nrpe-2.12</code> -> contains the related README, Changelog files and .pdf etc

</pre>

6. Check to make sure the NRPE daemon is functioning properly. To accomplish this, run the check_nrpe plugin that was installed for testing purposes. The directory make be different depending OS.

Or

7. Some of these commands can be executed on the Remote host for testing daemon functionality

<pre>Note: please keep in mind this was done on Fedora 13 with Nagios 3.2.3 and NagIRCBot 0.0.30.</pre>

[[File:IrcBot.png|400px|thumb|centre|Nagios IRC Bot]]

SSH to Iraq machine (142.204.133.98) and issue the following commands:

<code>make install-plugin</code>

<pre>

<code>service xinetd start</code>

1. Create a forlder ~/Nagios/Nagios_NRPE.

<code>cd nrpe-2.12</code>

1. Install NRPE:

<code>make install-xinetd</code>

1. Edit Xinetd NRPE entry:

<code>service xinetd restart</code>

1. Check NRPE daemon is running and listening on port 5666:

<pre>NRPE v2.12</pre>

<pre>Note: Make sure to open port 5666 on the firewall of the remote server so that the Nagios monitoring server can access the NRPE daemon.

<code>service iptables save</code>

Congratulations! You have successfully completed the configuration of the Nagios Server/Client setup.