FollowMonitoring private services or attributes of a Windows machine requires that you install an agent on it. This agent acts as a proxy between the Nagios plugin that does the monitoring and the actual service or attribute of the Windows machine. Without installing an agent on the Windows box, Nagios would be unable to monitor private services or attributes of the Windows box.
For this example, we will be installing the NSClient++ addon on the Windows machine and using the check_nt plugin to communicate with the NSClient++ addon. The check_nt plugin should already be installed on the Nagios server
Configurations in Windows Server
1) Install NSClient++ on the remote windows server
http://sourceforge.net/projects/nscplus/ ( only for 64bit processors )
( 32 bit version can be downloaded from : http://www.nsclient.org/nscp/downloads )
In this new version , we can very easily install and configure the NSClient.
While installaling in the 4th step it will ask for the allowed hosts, here you can sepecify the nagios server. No need to set the password.
Once the installation is completed then the service will start automatically.
2) Confirm port=12489 is uncommented in NSC.in )
( Edit the C:\Program Files\NSClient++\NSC.ini file and uncomment the port# under [NSClient] section)
3) Open the services manager and make sure the NSClientpp service is allowed to interact with the desktop (see the ‘Log On’ tab of the services manager). If it isn’t already allowed to interact with the desktop, check the box to allow it to.
( Go to Control Panel -> Administrative Tools -> Services. Double click on the “NSClientpp” service and select the check-box that says “Allow service to interact with desktop” )
Configurations in Nagios Server
1) Confirm check_nt command is enabled in /usr/local/nagios/etc/objects/commands.cfg
# ‘check_nt’ command definition
define command{
command_name check_nt
command_line $USER1$/check_nt -H $HOSTADDRESS$ -p 12489 -v $ARG1$ $ARG2$
}
2) create new services.cfg file for the windows server .
vi /usr/local/nagios/etc/objects/clients/windows-server.cfg
# Define the host
define host{
host_name windows-adminlogs.info
alias remote-windows-server
address 192.168.0.50
check_command check-host-alive
contact_groups admins
use generic-host
}
# Define the services
define service{
use generic-service
host_name windows-adminlogs.info
service_description Uptime
contact_groups admins
check_command check_nt!UPTIME
}
define service{
use generic-service
host_name windows-adminlogs.info
service_description CPU Load
check_command check_nt!CPULOAD!-l 5,80,90
}
define service{
use generic-service
host_name windows-adminlogs.info
service_description Memory Usage
check_command check_nt!MEMUSE!-w 80 -c 90
}
define service{
use generic-service
host_name windows-adminlogs.info
service_description C:\ Drive Space
check_command check_nt!USEDDISKSPACE!-l c -w 80 -c 90
}
define service{
use generic-service
host_name windows-adminlogs.info
service_description D:\ Drive Space
contact_groups admins
check_command check_nt!USEDDISKSPACE!-l c -w 80 -c 90
3) Add the new configuration file in nagios configuration
vi /usr/local/nagios/etc/nagios.cfg
cfg_file=/usr/local/nagios/etc/objects/clients/windows-server.cfg
4) Verify the configurations and syntax are correct
nagios -v /usr/local/nagios/etc/nagios.cfg
5) Restart nagios
Yes, now you can monitor your windows servers from linux
More nagios docs here : Adminlogs Nagios Docs
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