For this installation I choose to take the rpm install path following the description on the check_mk site. The maxwait mentioned in the documentation is installed by the rpm.
A minor item missing in this desciption is that it may be necessary to open port 6556 in the firewall configuration.
I came across check_mk when looking for plugins for our Nagios installation, at that time I did not have the time to check it out. A project I'm working on at a customer site needs monitoring and I decided to try check_mk.
check_mk is an add on to Nagios build by a German Linux consulting firm. We already had a running installation of Nagios and pnp4nagios on a CentOs server. Nagios is a prerequisite for installing check_mq, I'm not sure if pnp4nagios is required or not.
Simple free SSHclient for windows. Putty is great but I recently started using Kitty which is a fork of Putty that add some nice features. Check the Kitty page to see the list of extras. If you don't use the extras I think it better to stick to the original Putty.