Welcome to Piratefish.org
In late 2005, frustrated with the volume of spam I was receiving, I built and documented how to create an anti-spam server using free open-source software. The intention was to perform similarly to the anti-spam products that Barracuda was selling at the time, but also to boost Linux adoption through instruction on basic command-line techniques in the OS. It was surprising popular. It received a number of updates over the years, however, I stopped maintaining it in 2011 and haven’t sold it since then.
I have learned many things since writing this book – mainly that writing technical guides based on Linux is painful – because keeping the book up-to-date is a constant challenge when Linux is also always changing.
Since the Internet was good to me early on, I’ll be good to the Internet and share the book freely.