First of all create a configuration directory for writing the rules. You can also create the rules in localhost.cfg but I recommend to create a separate directory and create the files in it.
#mkdir /etc/nagios/monitor_websites
and cd to this directory
And create file host.cfg in this directory for setting the urls.
#vi host.cfg
Suppose I want to monitor three sites
www.abc.com, www.xyz.com, www.pqr.com
Configure host.cfg as below.
#vi host.cfg
define host{
host_name abc.com
alias abc
address www.abc.com
use generic-host
}
define host{
host_name xyz.com
alias xyz
address www.xyz.com
use generic-host
}
define host{
host_name pqr.com
alias pqr
address www.pqr.com
use generic-host
}
#Defining group of urls - you should add this if you want to set up an HTTP check service.
define hostgroup {
hostgroup_name monitor_websites
alias monitor_urls
members www.abc.com, www.xyz.com, www.pqr.com
}
:wq #save it
And now create the file services.cfg for setting the service ( http_check )
#vi services.cfg
## Hostgroups services ##
define service {
hostgroup_name monitor_websites
service_description HTTP
check_command check_http
use generic-service
notification_interval 0
}
Now give the permissions for directory and configuration files.
#chown -R nagios:nagios monitor_websites
List and check.
[root@mail nagios]# ll monitor_websites
total 16
-rw-r--r-- 1 nagios nagios 669 Apr 25 23:13 host.cfg
-rw-r--r-- 1 nagios nagios 253 Apr 25 23:15 services.cfg
[root@mail nagios]#
Now give the configuration directory path in main nagios configuration file.
#vi /etc/nagios/nagios.cfg
cfg_dir=/etc/nagios/monitor_websites
:wq
Now restart the nagios service.
#service nagios restart
Thats it. Check the nagios site. You are done. You rocks.
#mkdir /etc/nagios/monitor_websites
and cd to this directory
And create file host.cfg in this directory for setting the urls.
#vi host.cfg
Suppose I want to monitor three sites
www.abc.com, www.xyz.com, www.pqr.com
Configure host.cfg as below.
#vi host.cfg
define host{
host_name abc.com
alias abc
address www.abc.com
use generic-host
}
define host{
host_name xyz.com
alias xyz
address www.xyz.com
use generic-host
}
define host{
host_name pqr.com
alias pqr
address www.pqr.com
use generic-host
}
#Defining group of urls - you should add this if you want to set up an HTTP check service.
define hostgroup {
hostgroup_name monitor_websites
alias monitor_urls
members www.abc.com, www.xyz.com, www.pqr.com
}
:wq #save it
And now create the file services.cfg for setting the service ( http_check )
#vi services.cfg
## Hostgroups services ##
define service {
hostgroup_name monitor_websites
service_description HTTP
check_command check_http
use generic-service
notification_interval 0
}
Now give the permissions for directory and configuration files.
#chown -R nagios:nagios monitor_websites
List and check.
[root@mail nagios]# ll monitor_websites
total 16
-rw-r--r-- 1 nagios nagios 669 Apr 25 23:13 host.cfg
-rw-r--r-- 1 nagios nagios 253 Apr 25 23:15 services.cfg
[root@mail nagios]#
Now give the configuration directory path in main nagios configuration file.
#vi /etc/nagios/nagios.cfg
cfg_dir=/etc/nagios/monitor_websites
:wq
Now restart the nagios service.
#service nagios restart
Thats it. Check the nagios site. You are done. You rocks.
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