Category Archives: Uncategorized

New website

After the best part of 10 years with a holding page, there’s now a site up at www.coolfactor.org. That is all.

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IMAP, SMTP, TLS and certificates

A couple of years ago I had a good go at getting my Sony Ericsson phone to talk to my IMAP server over SSL. That much worked (although the IMAP client doesn’t support folders so I had to do a … Continue reading

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Monotone hooks

I am now officially impressed with the extensibility of monotone.

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Web security

There are so many popular web applications around nowadays. Blogs, CMSs, Forums, Webmail, Site Administration, Project Management, Wikis, and many more. Yet I’m shocked at the lack of understanding of web security even among the authors of some of the … Continue reading

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HP LaserJet 1010 and “Unsupported Personality: PCL”

I’ve had a HP LaserJet 1010 for a few years, and I used to have it directly connected to my server, running lpd and samba. When I first set this up, I was plagued by “Unsupported Personality: PCL” errors. After … Continue reading

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Why not to mow the lawn while making pizza

This is perhaps an instantiation of Murphy’s Law, mixed in with a little bit of a rant. Pizza is good. Pizza is the staple diet of geeks all around the world. Pizza is especially good when it’s home made. So … Continue reading

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Monotone databases

For various reasons, I had ended up with a bunch of monotone databases copied all over the place. Clearly this was unsustainable, and I’d always planned that if I got to that point, I’d set up a single central database … Continue reading

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Sudoku solver

I’ve been working on my sudoku solver. It’s not the most efficient sudoku solver, by a long way. But the goal is not really just to solve sudoku. It’s to solve sudoku using pure logic, and to be able to … Continue reading

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