Recently I have installed and configured dspam on my mailserver. It seems to work nicely but needs occasional training. I wanted to integrate this with Thunderbird so that users could automatically train dspam from their mail client.
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Much of the code I have written as part of my day job uses the rather excellent libnids.  However, there are a few bugs in version 1.23 relating to packets with radiotap headers or code which tries to read from multiple pcap files in sequence.
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The following article is a repost of an original that I wrote for blogs.perl.org.

I thought I would share my experience of submitting a module to CPAN for the first time. In summary: it’s stupidly easy and if I can do it, so can you.
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