Author: Allan

Clone a running Pi

Let’s say you have a Raspberry Pi running a web site (like this one) and want to have a backup. It turns out with a little netcat magic, you can do just that. 1. ssh to the pi, and run

Posted in Pi, Random

Remotely boot your iPad and launch an app

I’m one step further along on the quest for the Holy Grail of kiosk displays. We use a lot of iPads here at the museum, most of them are either in Lab Shield brackets or built into cabinets. The whole

Posted in kiosk, Museum

Mac OS X user idle time in Python

I’m still on the quest for the perfect free kiosk app for Mac OS X. I’ve used Plainview to good effect in several exhibits. I’ve used Opera in one, and I’m using Firefox with R-Kiosk in another. Which program to

Posted in kiosk, Mac, Museum

Spotlight for coders

Apologies to everyone who already knew this… I just discovered something very cool. As an only occasional coder (Python, mostly, when I get the chance to write code), I don’t have a very good grasp of where all the header

Posted in Mac, Random

WordPress client IP address, behind a proxy

At the museum, we’re running a site where we want people to comment but where we’re also sitting ducks for spam comments. Trouble is, the site is running behind a web proxy. That means that all the comments are seemingly

Posted in Museum, Wordpress

Coming up with a question is also creation

To create is not just to produce objects or phenomena. Coming up [with] a question is also creation. In fact, a question that has a huge receptive capacity doesn’t even need a definitive answer. The very essence of a question

Posted in Museum, Random

Mac OS X ssh quickie

Are you getting these messages in your console log when you make a new user on Mac OS X and then try to ssh in to the computer with that new user name? Then don’t do what I did. After

Posted in Mac, Random

Review: Rubbermaid 12-Slot Organizer as a Mac mini server rack

I needed to do something about the Mac minis that were accumulating on the table in my office. Digging around, I found this Rubbermaid organizer on Amazon. It turns out to be nearly perfect. The unit is very sturdy, was

Posted in Mac, Museum

Old bits slipping away

I moved this blog from one of the Mac minis in my basement to the other (I’m trying to put everything on the newer one to free the other one up) yesterday. Originally I had been blogging using Plone (from

Posted in Random

OGC (re)discovers URLs, but let’s tighten up the terminology a bit

I had seen this tidbit that Sean Gillies writes about in the recent OGC newsletter. My thoughts were along the lines of Sean’s. I never understood the big deal behind URNs. EDIT: Forget the semi-rant, see the comments, and then

Posted in Geo