[Nagios-users] Getting Started with Nagios
Hi Everyone
I have just installed Nagios Core 3.2.3 with nagios-plugins-1.4.15 on CentOS
5.6 with SE Linux Disabled by following the Fedora Quick start guide (so
nagios is installed from source rather than an RPM)
And from the default install perspective everything looks good. But I have
just to add my first remote host and things dont seem to be working as I
expect.
I created a new file /usr/local/nagios/etc/objects/cms-core.cfg owner nagios
group nagios with the appropriate permissions and added
cfg_file=/usr/local/nagios/etc/objects/cms-core.cfg to
/usr/local/nagios/etc/nagios.cfg
I then added the following content to the file
define hostgroup{
hostgroup_name core-servers
alias Infrastructure
members inf1
}
define host{
host_name inf1
alias inf1.cms.waikato.ac.nz
address 130.217.208.181
check_command check-host-alive
check_interval 5
retry_interval 1
max_check_attempts 5
check_period24x7
process_perf_data 1
retain_nonstatus_information1
contact_groups admins
notification_interval 30
notification_period 24x7
notification_optionsd,u,r
}
define service{
use generic-service
hostgroup_name core-servers
service_description PING
contact_groups admins
check_command check_ping!500.0,20%!800.0,60%
}
I then run the config test command
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
The output is below
Nagios Core 3.2.3
Copyright (c) 2009-2010 Nagios Core Development Team and Community
Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 10-03-2010
License: GPL
Website: http://www.nagios.org
Reading configuration data...
Read main config file okay...
Processing object config file
'/usr/local/nagios/etc/objects/commands.cfg'...
Processing object config file
'/usr/local/nagios/etc/objects/contacts.cfg'...
Processing object config file
'/usr/local/nagios/etc/objects/timeperiods.cfg'...
Processing object config file
'/usr/local/nagios/etc/objects/templates.cfg'...
Processing object config file
'/usr/local/nagios/etc/objects/localhost.cfg'...
Processing object config file
'/usr/local/nagios/etc/objects/cms-core.cfg'...
Read object config files okay...
Running pre-flight check on configuration data...
Checking services...
Checked 9 services.
Checking hosts...
Checked 2 hosts.
Checking host groups...
Checked 2 host groups.
Checking service groups...
Checked 0 service groups.
Checking contacts...
Checked 1 contacts.
Checking contact groups...
Checked 1 contact groups.
Checking service escalations...
Checked 0 service escalations.
Checking service dependencies...
Checked 0 service dependencies.
Checking host escalations...
Checked 0 host escalations.
Checking host dependencies...
Checked 0 host dependencies.
Checking commands...
Checked 24 commands.
Checking time periods...
Checked 5 time periods.
Checking for circular paths between hosts...
Checking for circular host and service dependencies...
Checking global event handlers...
Checking obsessive compulsive processor commands...
Checking misc settings...
Total Warnings: 0
Total Errors: 0
Things look okay - No serious problems were detected during the pre-flight
check
I then restart the web server, expecting to see a new host inf1
But the host count has not increased and I can't see any reference to the
host. I also can not see the new host group I defined.
So obviously I am missing something fundamental.
Thanks for any incite you care to share :)
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Re: [Nagios-users] Getting Started with Nagios
I then restart the web server, expecting to see a new host inf1 But the host count has not increased and I can't see any reference to the host. I also can not see the new host group I defined. So obviously I am missing something fundamental. Thanks for any incite you care to share :) I then restart the web server... If you mean that literally, as in you restarted Apache, that won't change anything for Nagios. Apache only provides the web server for the UI, it has nothing to do with Nagios. The Nagios daemon is the one you need to restart (or more accurately, you can send it a SIGHUP signal) to pick up on your configuration file changes. Now, if you *did* restart Nagios and your changes aren't appearing in the web interface, do the following: 1) Stop the Nagios daemon 2) Now, go stop the *other* Nagios daemon(s) It is a *very* common problem, especially when people are just starting out, to accidentally start more than one Nagios daemon. Changes are made, *one* of the Nagios daemons are restarted, while the other continues to happily run the old configuration (and show up in the web interface). Benny -- You were doing well until everyone died. -- God, Futurama -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
Re: [Nagios-users] Getting Started with Nagios
Sorry for the noise and thank you for the prompt. I was silly enough that I didn't restart the nagios service. On Tue, May 31, 2011 at 2:52 PM, C. Bensend be...@bennyvision.com wrote: I then restart the web server, expecting to see a new host inf1 But the host count has not increased and I can't see any reference to the host. I also can not see the new host group I defined. So obviously I am missing something fundamental. Thanks for any incite you care to share :) I then restart the web server... If you mean that literally, as in you restarted Apache, that won't change anything for Nagios. Apache only provides the web server for the UI, it has nothing to do with Nagios. The Nagios daemon is the one you need to restart (or more accurately, you can send it a SIGHUP signal) to pick up on your configuration file changes. Now, if you *did* restart Nagios and your changes aren't appearing in the web interface, do the following: 1) Stop the Nagios daemon 2) Now, go stop the *other* Nagios daemon(s) It is a *very* common problem, especially when people are just starting out, to accidentally start more than one Nagios daemon. Changes are made, *one* of the Nagios daemons are restarted, while the other continues to happily run the old configuration (and show up in the web interface). Benny -- You were doing well until everyone died. -- God, Futurama -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
Re: [Nagios-users] Getting Started with Nagios
- Original Message - From: C. Bensend be...@bennyvision.com Now, if you *did* restart Nagios and your changes aren't appearing in the web interface, do the following: 1) Stop the Nagios daemon 2) Now, go stop the *other* Nagios daemon(s) Nicely played. :-) Cheers, -- jra -- Jay R. Ashworth Baylink j...@baylink.com Designer The Things I Think RFC 2100 Ashworth Associates http://baylink.pitas.com 2000 Land Rover DII St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274 -- Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
