Nagios Support Forum

I want put my own configuration in the Nagios Core 4.3.4.

I have the following setting in Nagios:

• /usr/local/nagios/etc/nagios.cfg

cfg_file=/usr/local/nagios/etc/objects/newhost.cfg
cfg_dir=/usr/local/nagios/etc/servers

• /usr/local/nagios/etc/servers/ubuntu_host.cfg

define host {
use linux-server
host_name ubuntu_host
alias Ubuntu Host
address 192.168.1.10
register 1
}

• /usr/local/nagios/etc/objects/newhost.cfg

# Define a host for the local machine
define host{
use linux-server
host_name google.com
alias google.com
address http://www.google.com
}

# Define a service to "ping" the local machine
define service{
use generic-service
host_name google.com
service_description PING
check_command check_ping!100.0,20%!500.0,60%
}

define service{
use generic-service
host_name google.com
service_description HTTP
check_command check_http
notifications_enabled 0
}

• The configuration validation is OK and it display 3 hosts:

Running pre-flight check on configuration data...
Checking objects...
Checked 7 services.
Checked 3 hosts.
Checked 0 host groups.
Checked 0 service groups.
Checked 1 contacts.
Checked 1 contact groups.
Checked 24 commands.
Checked 5 time periods.
Checked 0 host escalations.
Checked 0 service escalations.
Checking for circular paths...
Checked 3 hosts
Checked 0 service dependencies
Checked 0 host dependencies
Checked 5 timeperiods
Checking global event handlers...
Checking obsessive compulsive processor commands...
Checking misc settings...
Total Warnings: 0
Total Errors: 0

I restarted nrpe service, nargios service and httpd service.

But Nargios Web Interface display the same information.

What's the output of I'm suspicious you have more than one nagios install.

I tried the first command:
[root]# find / -name nagios
/etc/rc.d/init.d/nagios
/etc/logrotate.d/nagios
/etc/nagios
/var/lock/subsys/nagios
/var/run/nagios
/var/spool/nagios
/var/spool/mail/nagios
/var/log/nagios
/usr/share/nagios
/usr/lib64/nagios
/usr/local/nagios
/usr/local/nagios/bin/nagios
/usr/sbin/nagios
/home/nagios

Today I restarted all components and Nagios interface not work.

I will reinstall Nagios because it's better.

From the output of the find command, it does look like there are 2 copies of Nagios is installed on your server.
You could be editing the files for one install but the other install is running the other config files and the changes are not there.
The nagios binary looks to be installed in these locations. You could remove both copies from the server and reinstall Nagios.
The following link is the instructions for installing Nagios using the source files.
https://support.nagios.com/kb/article/n ... ce-96.html