If you are planning to monitor Windows servers, it’s highly advised to install NRPE module. On windows side, I generaly use NSCLIENT++ for host check.
You’ll be able to execute remote commands on hosts.
Installation process:
cd /usr/local/src sudo wget http://downloads.sourceforge.net/project/nagios/nrpe-2.x/nrpe-2.12/nrpe-2.12.tar.gz?use_mirror=kent sudo tar xzfv nrpe-2.12.tar.gz cd nrpe-2.12/ sudo ./configure --with-ssl=/usr/bin/openssl --with-ssl-lib=/usr/lib sudo make all sudo make install-plugin