mindrot.org projects weblog

flowd has moved to Google Code. Release tarballs are available from there and should download quite a bit faster. Revision control now uses Mercurial, which supports local branches and modifications much better than CVS. Bug tracking remains at bugzilla for now, but it might too move in the future.

Moving to Google Code makes it much easier to add additional developers to the project. If you have contributed in the past to flowd and are interested in becoming a developer, then please let me know.

posted at: 09:18 | permanent link

flowd-0.9.1 has just been released, containing a number of bug fixes that have accrued in the time since the last one. Please see the ChangeLog for details of what has changed.

posted at: 10:12 | permanent link

flowd-0.9 has (finally) been released. This major release offers major improvements to performance, functionality and upgrades the Python API significantly. Please see the release notes for all the details.

posted at: 12:00 | permanent link

Using the new Python API in flowd-0.9, it is very easy to write custom processing applications. Here are the results of a couple of hours of figuring out RRDtool's subleties: a small pair of scripts to chart NetFlow data (example results). Details on how to use these scripts are contained in this mailing list post.

The scripts currently summarise traffic by IP protocol, but this approach can be extended to plotting any pretty much any classification of traffic - reports by IP address, or by [IP address + TCP port] are easy to realise too.

posted at: 12:00 | permanent link

A new release of flowd is coming soon. If you want to help, please download and test a snapshot release of flowd and report back to the mailing list.

posted at: 12:00 | permanent link