Nagios monitoring - Revision history

Pio2pio: /* References */

2014-02-23T15:27:21Z

References

← Older revision		Revision as of 17:27, 23 February 2014
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	*[http://nagios.sourceforge.net/docs/3_0/quickstart-fedora.html Fedora Quickstart] rpm based guide and install from sources		*[http://nagios.sourceforge.net/docs/3_0/quickstart-fedora.html Fedora Quickstart] rpm based guide and install from sources
	*[http://ec2-54-194-212-169.eu-west-1.compute.amazonaws.com/nagios/ Nagios on AWS] live example		*[http://ec2-54-194-212-169.eu-west-1.compute.amazonaws.com/nagios/ Nagios on AWS] live example

			[[Category:linux]]

Pio2pio: /* References */

2014-02-02T20:02:02Z

References

← Older revision		Revision as of 22:02, 2 February 2014
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	= References =		= References =
	*[http://nagios.sourceforge.net/docs/3_0/quickstart-fedora.html Fedora Quickstart] rpm based guide and install from sources		*[http://nagios.sourceforge.net/docs/3_0/quickstart-fedora.html Fedora Quickstart] rpm based guide and install from sources
			*[http://ec2-54-194-212-169.eu-west-1.compute.amazonaws.com/nagios/ Nagios on AWS] live example

Pio2pio: /* References */

2014-02-02T19:46:03Z

References

← Older revision		Revision as of 21:46, 2 February 2014
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	= References =		= References =
	*[http://nagios.sourceforge.net/docs/3_0/quickstart-fedora.html Fedora Quickstart] ~~Rpm~~ based ~~quide~~ and install from sources		*[http://nagios.sourceforge.net/docs/3_0/quickstart-fedora.html Fedora Quickstart] rpm based guide and install from sources

Pio2pio: /* Adding host to monitor */

2014-02-02T19:44:14Z

Adding host to monitor

← Older revision		Revision as of 21:44, 2 February 2014
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	sudo htpasswd -c -b /etc/nagios/passwd nagiosadmin ''nagiospassword''		sudo htpasswd -c -b /etc/nagios/passwd nagiosadmin ''nagiospassword''

	=Adding host to ~~monitor~~=		=Adding host to be monitored=
	Create new object to monitor		Create new object to monitor
	sudo vi /etc/nagios/objects/o2box.cfg		sudo vi /etc/nagios/objects/o2box.cfg

Pio2pio: /* Post installation configuration */

2014-02-02T19:43:29Z

Post installation configuration

← Older revision		Revision as of 21:43, 2 February 2014
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	Install SNMP		Install SNMP
	yum install net-snmp-utils net-snmp		yum install net-snmp-utils net-snmp
	= Post installation configuration =		= Post-installation configuration =
	Set up user name and password. A default username is '''nagiosadmin'''		Set up user name and password. A default username is '''nagiosadmin'''
	sudo htpasswd -c -b /etc/nagios/passwd nagiosadmin ''nagiospassword''		sudo htpasswd -c -b /etc/nagios/passwd nagiosadmin ''nagiospassword''

Pio2pio: /* Adding host to monitor */

2014-02-02T19:41:26Z

Adding host to monitor

← Older revision		Revision as of 21:41, 2 February 2014
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	host_name o2box		host_name o2box
	alias Thomson TG585		alias Thomson TG585
	address ~~212~~.77.~~100~~.~~101~~		address 8.8.8.8
	}		}

Pio2pio: /* Adding host to monitor */

2014-02-02T19:40:56Z

Adding host to monitor

← Older revision		Revision as of 21:40, 2 February 2014
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	Restart Nagios		Restart Nagios
	sudo service nagios restart		sudo service nagios restart

			Hosts list should look similar to what we have below
			[[File:Nagios-adding-host.JPG\|none\|left\|Nagios-adding-host]]

	;Troubleshooting		;Troubleshooting

Pio2pio at 19:30, 2 February 2014

2014-02-02T19:30:46Z

← Older revision		Revision as of 21:30, 2 February 2014
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	= References =		= References =
	*[http://nagios.sourceforge.net/docs/3_0/quickstart-fedora.html Fedora Quickstart] Rpm based quide and install from sources		*[http://nagios.sourceforge.net/docs/3_0/quickstart-fedora.html Fedora Quickstart] Rpm based quide and install from sources
	*[http://www.the-tech-tutorial.com/?p=414 Adding Hosts to Nagios]

Pio2pio: /* Adding host to monitor */

2014-02-02T19:30:19Z

Adding host to monitor

← Older revision		Revision as of 21:30, 2 February 2014
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	; This host definition will inherit all variables that are defined		; This host definition will inherit all variables that are defined
	; in (or inherited by) the linux-server host template definition.		; in (or inherited by) the linux-server host template definition.
	host_name ~~google.com~~		host_name o2box
	alias ~~google.com~~		alias Thomson TG585
	address ~~www~~.~~google~~.~~com~~		address 212.77.100.101
	}		}

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	define service{		define service{
	use generic-service ; Name of service template to use		use generic-service ; Name of service template to use
	host_name ~~google.com~~		host_name o2box
	service_description PING		service_description PING
	check_command check_ping!100.0,20%!500.0,60%		check_command check_ping!100.0,20%!500.0,60%
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	define service{		define service{
	use generic-service ; Name of service template to use		use generic-service ; Name of service template to use
	host_name ~~google.com~~		host_name o2box
	service_description HTTP		service_description HTTP
	check_command check_http		check_command check_http
	notifications_enabled 0		notifications_enabled 0
	}		}
			;Define host
			*<tt>'''use linux-server'''</tt>: We use Linux-Server because its the easiest template to use, more on this later
			*host_name <tt>'''o2box'''</tt>: This is the host name, this is how you reference your hosts settings, it doesn’t have to be its address just something meaningful related to the host
			*alias <tt>'''Thomson TG585'''</tt>: This is the long name for the host, this is only used for display purposes
			*address <tt>'''8.8.8.8'''</tt>: This is important, its the actual address for the host, either a DNS name or IP address will work here.

	~~add~~ to /etc/nagios/nagios.cfg ~~follwoing~~ lines in ~~aappropiate~~ sections:		;Define service
			This is were we define the services on each host, for <tt>'''o2box'''</tt> home router we are only going to check if its alive(ping) and check to see if its web server is running (http). We need to two services for this, however the settings are the same for each:

			*<tt>'''use'''</tt> this is the service template, use generic-serivce is the standard template.
			*<tt>'''host_name'''</tt> This is where we reference what host we want the service connected to, use the name of the host defined earlier.
			*<tt>'''service_description'''</tt> This is the name the user will see on the Nagios web page
			*<tt>'''check_command'''</tt> This is the command we are going to run to test if the service is running, more on commands later.

			Add to /etc/nagios/nagios.cfg following lines in appropriate sections:
	cfg_file=/etc/nagios/objects/o2box.cfg		cfg_file=/etc/nagios/objects/o2box.cfg
	Restart Nagios		Restart Nagios
	sudo service nagios restart		sudo service nagios restart

	~~Comment: google host is not responding~~.~~.. wip~~		;Troubleshooting
			If you receive errors after restarting, run verbose mode on the main config
			nagios -v /etc/nagios/nagios.cfg

	= References =		= References =
	*[http://nagios.sourceforge.net/docs/3_0/quickstart-fedora.html Fedora Quickstart] Rpm based quide and install from sources		*[http://nagios.sourceforge.net/docs/3_0/quickstart-fedora.html Fedora Quickstart] Rpm based quide and install from sources
	*[http://www.the-tech-tutorial.com/?p=414 Adding Hosts to Nagios]		*[http://www.the-tech-tutorial.com/?p=414 Adding Hosts to Nagios]

Pio2pio: /* References */

2014-02-02T13:19:05Z

References

← Older revision		Revision as of 15:19, 2 February 2014
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	= References =		= References =
	*[http://nagios.sourceforge.net/docs/3_0/quickstart-fedora.html Fedora Quickstart] Rpm based quide and install from sources		*[http://nagios.sourceforge.net/docs/3_0/quickstart-fedora.html Fedora Quickstart] Rpm based quide and install from sources
			*[http://www.the-tech-tutorial.com/?p=414 Adding Hosts to Nagios]