18. August 2018

Off-grid - making do and mending

A bit of resourcefulness and "it'll-come-in-handy-some-day" hoarding saves the day

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2. May 2018

Weather Station Software

Our weather data goes back to 2011. How to maintain that collection while changing the weather station software

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5. February 2018

Raspberry Pi home server - setting up OpenDKIM with postfix

Some vague notes about setting up openDKIM against multiple domains on a single instance, all domains using one key.

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14. September 2017

Preparing digital photo files for use on the Web

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.

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23. August 2017

Lightweight anti-spam alternative for small servers

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.

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16. July 2017

The Calendar Hokey Cokey

A problem with the Nextcloud calendar can be resolved with a lot of to-ing and fro-ing, thanks to standards

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16. June 2017

A Digital Re-think

Some thoughts on images in the digital world...

But note, as with all things photographic, this is all just opinion.

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30. March 2017

A little dab in the wrong plaice makes you wonder...

Flying fish in the hills of Assynt

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The Queen's Mite

Finding and photographing a bumble bee loaded with mites

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26. February 2017

Lexie 2003 - 2017

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The life and times of a wonderful Westie


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27. January 2017

Tales of experience

Some stories from more than 25 years in corporate IT, some of which seem quite historical now

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1. October 2016

Serving up some Pi

You really can run on a Raspberry Pi

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13. July 2016

A new battery bank for our off-grid power supply

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The final piece of the recent power revamp

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9. April 2016

The Silver Darling - When you need a good Linux laptop

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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.

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8. March 2016

Music at home - HiFi gains a new source

Streaming music without corporate control allows you to listen to your music, not "consume" it

Self-sufficient hifi

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7. March 2016

The Northern Lights

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Forget the science, just enjoy them

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2. March 2016

The Superwind's first winter

Looks like the right kit

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20. June 2015

Despamming versus assassinating spam

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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.

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17. April 2015

Off-grid power update - phase 2 - solar power

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In spite of being so far north, we get a lot of power from the sun... except in winter

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7. April 2015

Off-grid power update - phase 1 - the wind turbine

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The cost of a mains power connection makes continuing to live off-grid attractive

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