In an earlier post, I discussed some Xcode settings that would simplify creating a Universal Binary screensaver that would run on all three versions of Mac OS X. Since that post, I’ve run into some problems and had some feedback, and discovered additional possible problems and solutions. First off, there are a confusing number of [...]
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Distributing a single screen saver for 10.4, 10.5 and 10.6
June 5, 2010 by Mathew Eis. 2 Comments
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ClockBox 1.0 Released
April 16, 2010 by Mathew Eis. 4 Comments
ClockBox 1.0 has been released. To celebrate this, I’ll be giving away free registrations to the first 10 “Beta Testers” to try it out and give me their thoughts and any suggestions for improvement. To be eligible, you must leave your feedback in a comment below, and include the type of Mac you’re running, and [...]
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MAIL FROM vs From vs Sender – exploiting SPF
July 23, 2009 by Mathew Eis. 3 Comments
After 10 years of managing computer networks, I still learn something new almost every day. This week I inadvertently discovered that there were many more ways of “identifying” the sender of an e-mail that I had ever known (or in this case, of spoofing the sender an an e-mail). Despite having multiple layers of SPAM [...]
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Why you can’t afford NOT to have an online identity
June 29, 2009 by Mathew Eis. 2 Comments
In this age of social networking, there’s no limit to the selection of sites you could sign up for… MySpace, Facebook, Twitter, LinkedIn, Xanga, Blogger – the list goes on. From time to time, I run into the occasional person who absolutely refuses to so much as sign up for any of these sites. They [...]
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Fitting a curve to three points
April 21, 2009 by Mathew Eis. No Comments
I recently had a need to fit a curve to three points. The geometry can get somewhat complex due to the limits of finite math, however, here is JAVA applet I’ve created with a relatively simple solution to the problem. The circle can be found using only basic math calculations and a single square root. [...]