These munin plugins allow you to graph various things happening in a Freenet node. To run them you need perl 5.10.0 or later and Net::FCP::Tiny from the CPAN.
They all talk to localhost:9481 unless you specify otherwise with
the FREENET_HOST and FREENET_PORT environmental variables in the
munin-node configuration file, e.g.:
[freenet_*]
env.FREENET_HOST freenet.example.net
env.FREENET_PORT 1337
These plugins are maintained on GitHub by Ævar Arnfjörð Bjarmason, if you need something else graphed hack it up and submit a pull request.
This software is available under the terms of the DWTFYWWI license.