Digimer: /* Configuring Nagios */

2011-09-16T04:47:22Z

Configuring Nagios

← Older revision		Revision as of 04:47, 16 September 2011
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	= Configuring Nagios =		= Configuring Nagios =

			== MS Windows ==

			Client Downloads [http://nsclient.org/nscp/downloads found here].

			<span class="code"></span>
	<source lang="text">		<source lang="text">
	</source>		</source>



	= Thanks =		= Thanks =

Digimer: /* Configuring Nagios */

2011-09-08T17:58:38Z

Configuring Nagios

← Older revision		Revision as of 17:58, 8 September 2011
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			= Thanks =

			* Much of the configuration came from [http://www.unixmen.com/linux-tutorials/151-how-to-install-nagios-in-rhel-centos-fedora Unixmen].

	<source lang="bash">		<source lang="bash">

Digimer: /* Install Prerequisites */

2011-09-08T17:57:14Z

Install Prerequisites

← Older revision		Revision as of 17:57, 8 September 2011
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	<source lang="bash">		<source lang="bash">
	yum install httpd php gcc glibc common gd gd-devel		yum install httpd php gcc glibc common gd gd-devel
			chkconfig httpd on
	useradd -m nagios		useradd -m nagios
	groupadd nagcmd		groupadd nagcmd

Digimer: /* Install Nagios Plugins */

2011-09-07T18:14:56Z

Install Nagios Plugins

← Older revision		Revision as of 18:14, 7 September 2011
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	</source>		</source>

	Open a browser and go to <span class="code">http://<hostname>/nagios</span>. Enter the username <span class="code">nagiosadmin</span> and the password you set earlier.		Open a browser and go to <span class="code"><nowiki>http://<hostname>/nagios</nowiki></span>. Enter the username <span class="code">nagiosadmin</span> and the password you set earlier.

	= Configuring Nagios =		= Configuring Nagios =

Digimer: Created page with "{{howto_header}} Clusters have a good, but not perfect ability to monitor their resources. For example, if a Windows-based VM crashes, it will go into an infinite loop which, to..."

2011-09-07T18:13:19Z

Created page with "{{howto_header}} Clusters have a good, but not perfect ability to monitor their resources. For example, if a Windows-based VM crashes, it will go into an infinite loop which, to..."

Páàjì titun

{{howto_header}}

Clusters have a good, but not perfect ability to monitor their resources. For example, if a Windows-based VM crashes, it will go into an infinite loop which, to the cluster, looks like legitimate work. In a case like this, the cluster will not know that something has gone wrong.

This tutorial will introduce a dedicate [http://www.nagios.org Nagios] VM. This VM will watch the actual services and send alerts when things go boom.

= Installing Nagios =

This walks through installing Nagios from source files. Please [http://sourceforge.net/projects/nagios/files/ check for updated versions]. The examples below show the version and file names that were most recent as of Sep. 7, 2011.

== Install Prerequisites ==

<source lang="bash">
yum install httpd php gcc glibc common gd gd-devel
useradd -m nagios
groupadd nagcmd
usermod -a -G nagcmd nagios
usermod -a -G nagcmd apache
passwd nagios
</source>

== Install Nagios Core ==

Download and install Nagios:

<source lang="bash">
cd ~
wget -c http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.3.1.tar.gz
tar -xvzf nagios-3.3.1.tar.gz
cd nagios
./configure --with-command-group=nagcmd
make all
make install
make install-init
make install-config
make install-commandmode
make install-webconf
</source>

Change your contact address.

<source lang="bash">
cp /usr/local/nagios/etc/objects/contacts.cfg /usr/local/nagios/etc/objects/contacts.cfg.orig
vim /usr/local/nagios/etc/objects/contacts.cfg
diff -u /usr/local/nagios/etc/objects/contacts.cfg.orig /usr/local/nagios/etc/objects/contacts.cfg
</source>
<source lang="diff">
--- /usr/local/nagios/etc/objects/contacts.cfg.orig 2011-09-07 13:17:20.000000000 -0400
+++ /usr/local/nagios/etc/objects/contacts.cfg 2011-09-07 13:17:51.000000000 -0400
@@ -32,7 +32,7 @@
use generic-contact ; Inherit default values from generic-contact template (defined above)
alias Nagios Admin ; Full name of user

- email nagios@localhost ; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ******
+ email digimer@alteeve.com ; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ******
}
</source>

Setup apache's .htpasswd:

<source lang="bash">
htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
</source>
<source lang="text">
New password:
Re-type new password:
Adding password for user nagiosadmin
</source>
<source lang="bash">
/etc/init.d/httpd restart
</source>
<source lang="text">
Stopping httpd: [ OK ]
Starting httpd: httpd: apr_sockaddr_info_get() failed for nagios3.iplink.net
httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName
[ OK ]
</source>

== Install Nagios Plugins ==

Download and install Nagios Plugings:

<source lang="bash">
cd ~
wget -c http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.15.tar.gz
tar -xvzf nagios-plugins-1.4.15.tar.gz
cd nagios-plugins-1.4.15
./configure --with-nagios-user=nagios --with-nagios-group=nagios
make
make install
chkconfig --add nagios
chkconfig nagios on
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
/etc/init.d/nagios start
</source>

Open a browser and go to http://<hostname>/nagios. Enter the username nagiosadmin and the password you set earlier.

= Configuring Nagios =

<source lang="text">
</source>

<source lang="bash">
</source>
<source lang="text">
</source>

{{footer}}

Setting up Nagios on EL6 - Revision history

Digimer: /* Configuring Nagios */

Digimer: /* Configuring Nagios */

Digimer: /* Install Prerequisites */

Digimer: /* Install Nagios Plugins */

Digimer: Created page with "{{howto_header}} Clusters have a good, but not perfect ability to monitor their resources. For example, if a Windows-based VM crashes, it will go into an infinite loop which, to..."