Nageographer 0.1 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program is included in Developer Tools. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
Nageographer is a graphical configuration editor for visual host status maps produced by Nagios (a host monitoring tool)
You may want to check out more software for Mac, such as CVSServerSetup, Mopho LE or jKaiUI, which might be similar to Nageographer.