“Installing, supporting and particularly diagnosing networks can
involve much detective work, in addition to decent levels of
frustration and caffeine. As with all investigations, the more data
that is available to form and test hypotheses, the more likely a
problem will be solved. Therefore, the more options or tools
available for data gathering, the more useful the data
obtained.“Open-source programs for Linux-based systems constitute some of
the best tools available for network diagnosis, performance
analysis and baseline determination…”