Passive Aggressive Spam Filtering

Passive Aggressive Spam Filtering: "

Using OpenBSD and spamd for spam filtering and grey-listing is very old news but there are a few situations where it becomes politically and technically challenging to run in production. Here was a simple yet (and in no way the best method) of using PF and some friends on the internet to help 'slow the flow' of offal from the Internet into your mail server.

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OpenBSD 4.6 Pre-Orders Online!

OpenBSD 4.6 Pre-Orders Online!: "

Pre-orders are now being accepted for OpenBSD 4.6, scheduled for release on October 1st, 2009.

The developers bring us an amazing amount of cool new stuff (PF now enabled by default, a new privilege-separated SMTP daemon, routing domain support and lots more).

Of course, t-shirts and posters are available too. Order your set NOW!

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BSD load demystified

BSD load demystified: "

Ariane van der Steldt (ariane@) posted a reply to the OpenBSD misc mailing list last month that offered some valuable insight into how load is calculated in the BSD kernel. This is a topic that comes up routinely but remains largely misunderstood by the average user.

Read on for Ariane's explanation and comparison to Linux load...

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SecPuffy:): OpenBSD tips and tricks - adding swap on the fly

SecPuffy:): OpenBSD tips and tricks - adding swap on the fly