Lessons learned from mainframe usage

An excellent overview of what learning to program on a mainframe was like. GDGs for source control, oh my. This comment on what you needed to do to get terminal time is so excellent:

My junior year I didn't yet have keys to the building (I got them senior year so I could have office hours for the business-school freshmen I was teaching FORTRAN - that never made sense to me either...), so we worked out the following: unlock a window in the terminal room. Climb onto the first-floor roof of the student services building. Cross that to the sciences building. Climb the ladder to the astronomy observing platform on the top of the building. Go in that door, down the hall, out the window onto the roof *again*, then in through the terminal room window.

Looking to log in to SourceForge via OpenID

Looks like they're trying to phase out support, but for now go to https://sourceforge.net/account/login.php?openid

Also posted this on Webapps.SE in case anyone knows more.

Security problems in Unix screensavers

You crash the screensaver, the computer unlocks. Really? Apparently yes. And major distros are making easily crashable screensavers.

Rollbacks important

Rollbacks are important in my business. It's pretty astonishing to me how difficult they are, or impossible, on mobile devices.

How to sell on Gumoad

Quite useful if you're looking to start a business on the side.

Happy Birthday Perl!

MPB writes about it.

Simple Linux/AD integration

Easy as pie.