A bit of resourcefulness and "it'll-come-in-handy-some-day" hoarding saves the day
2. May 2018
2. May 2018. Weather
Our weather data goes back to 2011. How to maintain that collection while changing the weather station software
5. February 2018
5. February 2018. Linux
Some vague notes about setting up openDKIM against multiple domains on a single instance, all domains using one key.
14. September 2017
14. September 2017. Photography
Reducing size, adding copyright information and other watermarking is useful for pictures one may wish to use on the Internet. Selecting the images, or using drag 'n' drop graphically is easier than pushing specific files through a script.
Note - I am no programmer, and my scripting abilities are severely limited. This works for me, but may not work for you. Use these ideas at your own risk.
23. August 2017
23. August 2017. Linux
Spamassassin may be the standard anti-spam utility for servers, but it can't be considered to be either fast or low on resources. Bogofilter may offer some advantages, but unlike spamassassin, tutorials and how-to's are thin on the ground
Warning: this is a technical post, full of jargon and an expectation that it will be read by system administrators, so may not be of interest to all readers.
Integrating postfix, dovecot and bogofilter on a Raspberry Pi.
Edit: Some months have passed since installing bogofilter. It is not as fast as a daemon, but not as slow as spamassassin, either. As expected, it has taken a couple of months to build up accuracy, but the system is excellent, and now reliably marks some spam that always got through spamassassin. This seems a good way forward for lightweight email systems.
Additional Addendum: See the note at the end of the article. Bogofilter remains a good server-based option for dealing with spam.
16. July 2017
16. July 2017. Linux
A problem with the Nextcloud calendar can be resolved with a lot of to-ing and fro-ing, thanks to standards
16. June 2017
16. June 2017. Photography
Some thoughts on images in the digital world...
But note, as with all things photographic, this is all just opinion.
30. March 2017
30. March 2017. Highland Life
Flying fish in the hills of Assynt
30. March 2017. Highland Life
Finding and photographing a bumble bee loaded with mites
26. February 2017
26. February 2017. Wandering
The life and times of a wonderful Westie
27. January 2017
27. January 2017. General computing
Some stories from more than 25 years in corporate IT, some of which seem quite historical now
1. October 2016
1. October 2016. Linux
You really can run on a Raspberry Pi
13. July 2016
13. July 2016. Off-grid power
The final piece of the recent power revamp
9. April 2016
9. April 2016. Linux
The Entroware Apollo laptop is a good option to be sure that new hardware runs well with Linux, and the system itself is good. But the process of buying a Linux laptop could be more straight forward.
8. March 2016
8. March 2016. Wandering
Streaming music without corporate control allows you to listen to your music, not "consume" it
7. March 2016
7. March 2016. Weather
Forget the science, just enjoy them
2. March 2016
2. March 2016. Off-grid power
Looks like the right kit
20. June 2015
20. June 2015. Linux
Free software tools for ensuring email security and managing spam are good and self-managing, but they can be difficult to set up. This was proven by a recent prod to investigate options.
Edited, September 2016 - I have reluctantly reverted to other anti-spam systems. Debian have stopped providing dspam, although there is a more recent version than the last packaged version. Worse, the version that is packaged for the Raspberry Pi, which has most to gain from dspam, does not work. This is a great pity, as dspam, for the 15 months I have used it, is accurate (96.20%), lightning fast, and uses very few resources.
17. April 2015
17. April 2015. Off-grid power
In spite of being so far north, we get a lot of power from the sun... except in winter
7. April 2015
7. April 2015. Off-grid power
The cost of a mains power connection makes continuing to live off-grid attractive