Processing black & white film at home is easy. You just need a changing bag to load the film into a tank in darkness, and the rest can be done in the bathroom with the light turned on. The chemicals for black & white are normally used at 20°C but can be used at roomContinue reading “Processing colour C-41 films at home”
Tag Archives: temperature
An unlikely correlation
I just spotted that my Nagios/RRD graphs of my home server are showing a strange correlation. From these graphs, it seems that the higher the outdoor temperature, the more free memory the system has available. I’m sure this is just a coincidence, though…
Baby, it’s cold outside
I posted a few months ago to say that my server wasn’t a massive fan of the high temperature in my loft. Well, now it’s too cold. The UK has had a bit of a cold snap lately. Outdoor temperatures in Bristol last night got as low as -3 °C, and in turn the temperatureContinue reading “Baby, it’s cold outside”
The temperature in my loft
I recently (mid October) moved my home server into my loft, as its constant noise under my desk was getting on my nerves. However I found that with a large area of roof exposed to the sun (even the weak Autumn sun), and practically no ventilation the ambient temperature fluctuates enormously. In October when itContinue reading “The temperature in my loft”
Various Nagios plugins
I’ve now written several Nagios plugins and submitted them all to MonitoringExchange. Here’s a quick summary: check_temper for monitoring the temperature with a TEMPer USB thermometer check_kernel for checking that the currently running kernel on an RPM-based system is the most recent installed kernel (not necessarily the latest available kernel in the repository) check_aql_balance forContinue reading “Various Nagios plugins”
Nagios plugin for TEMPer USB thermometer
As I said in a previous post, I finally got my TEMPer USB thermometer to work on Fedora, thanks to a patch by Tollef Fog Heen that has now been incorporated into the Fedora kernel. I’m not familiar with C so I only made minor tweaks to Tollef Fog Heen’s code, which returns a temperatureContinue reading “Nagios plugin for TEMPer USB thermometer”
TEMPer USB thermometer on Linux
Some time ago I bought a cheap USB thermometer called TEMPer. I was disappointed to find that it didn’t work on Fedora. It would only work on Windows using a poor piece of proprietary software. I eventually found the blog of Tollef Fog Heen, who had managed to get his TEMPer to work. Unfortunately hisContinue reading “TEMPer USB thermometer on Linux”
Jonathan Gazeley 