Nagios 4 : Add Monitoring Target Host#32016/09/15

	It's possible to monitor Windows servers on the network. For example, add Windows Server 2012 R2 for monitoring target.
[1]	Download "NSClient++" and upload it on target Windows server. ⇒ http://sourceforge.net/projects/nscplus/
[2]	Install "NSClient++". Input Nagios server's hostname or IP address and set any password during installation like follows. The password is used for the connection from Nagios server to Windows server for monitoring.

After installing, NSClient++ has been started. It's not need to change Windows firewall settings because installer has done it.

[3]	Configure Nagios server.

# install from EPEL

[root@dlp ~]#

yum --enablerepo=epel -y install nagios-plugins-nt

[root@dlp ~]#

vi /etc/nagios/objects/commands.cfg

# line 209 : add the password you set on Windows

command_line $USER1$/check_nt -H $HOSTADDRESS$ -p 12489 -v $ARG1$ $ARG2$

-s password

[root@dlp ~]#

vi /etc/nagios/servers/windows.cfg

# create new

# define target hosts

define host{
       use                      windows-server
       host_name                fd3s
       alias                    fd3s
       address                  10.0.0.100
       }
define hostgroup{
        hostgroup_name          windows-servers
        alias                   Windows Servers
        }

# for ping

define service{
       use                      generic-service
       host_name                fd3s
       service_description      PING
       check_command            check_ping!100.0,20%!500.0,60%
       }

# for NSClient++ version

define service{
        use                     generic-service
        host_name               fd3s
        service_description     NSClient++ Version
        check_command           check_nt!CLIENTVERSION
        }

# for uptime

define service{
        use                     generic-service
        host_name               fd3s
        service_description     Uptime
        check_command           check_nt!UPTIME
        }

# for CPU load

define service{
        use                     generic-service
        host_name               fd3s
        service_description     CPU Load
        check_command           check_nt!CPULOAD!-l 5,80,90
        }

# for memory usage

define service{
        use                     generic-service
        host_name               fd3s
        service_description     Memory Usage
        check_command           check_nt!MEMUSE!-w 80 -c 90
        }

# for disk space

define service{
        use                     generic-service
        host_name               fd3s
        service_description     C:\ Drive Space
        check_command           check_nt!USEDDISKSPACE!-l c -w 80 -c 90
        }

# for explorer

define service{
        use                     generic-service
        host_name               fd3s
        service_description     Explorer
        check_command           check_nt!PROCSTATE!-d SHOWALL -l Explorer.exe
        }

# IIS

define service{
        use                     generic-service
        host_name               winserver
        service_description     W3SVC
        check_command           check_nt!SERVICESTATE!-d SHOWALL -l W3SVC
        }

[root@dlp ~]#

systemctl restart nagios

[4]	It's possible to view the status for a new server on the admin site.

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