Alex's blog: photography and more

About me
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As I often find myself busy jumping from one project to the next, I don't really find time to update my webpage. I really liked editing html by hand, and writing clean, nice-looking code, yet as time passes priorities shift. And I really don't have the time to do that now.
As I liked Jeff's and Chris's blogs, I decided to use one myself.
It's called Aether, and so far I'm pretty happy with it. It is easy to install (took me about 15 minutes), and especially easy to use. I like the fact that all you need is a browser to edit pages, and add new ones.
For those not familiar with blogs, it's kinda like a wiki, where you can change content online.. you should try it

Right now a lot of my attention (besides the EMC Project) goes to Photography, so you find the most stuff in there.

22 January 2010, 20:16 UTC in projectsradio

Work of art / just another appliance
For a while I looked online for a radio to put in the kitchen. Nothing fancy, just a wireless connected streaming radio. I found quite a few, but neither was just about right for me (either you couldn't edit your own station URL's, or it was too expensive, or just a crazy colour...

So while googling around I stumbled across MightyOhm's report, and I decided to build my own..


26 December 2022, 20:14 UTC in projectsrpi4+docker stuff

Just some snippets so I remember what I did..


Raspberry Pi OS - 64bit, lite, installed from Imager 1.7.3.
Installed to a SD card, configured user pi pass, and wifi credentials
sudo apt-get update
Since I got an error:
N: Repository ' bullseye InRelease' changed its 'Version' value from '11.5' to '11.6'
I had to:
sudo apt-get update --allow-releaseinfo-change then the regular sudo apt-get upgrade


Using loosely the instructions from Raspi-docker
Download the right script and install Docker on the Raspberry Pi environment.
curl -fsSL -o

Then run the script with the help of the below command:
sudo sh
after an odd error, and a restart (iptables was not running because of a kernel upgrade, and docker-ce was failing configuration stage), running it again made it work
add user pi to the group docker: sudo usermod -aG docker pi
then log in again and check docker is running: docker version, docker info and docker run hello-world


pi@rpi4:~ $ docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
7050e35b49f5: Pull complete
Digest: sha256:c77be1d3a47d0caf71a82dd893ee61ce01f32fc758031a6ec4cf1389248bb833
Status: Downloaded newer image for hello-world:latest

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
 1. The Docker client contacted the Docker daemon.
 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
 3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
 4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.


First install portainer, to admin dockers via GUI
pi@rpi4:~ $ docker run -d -p 9000:9000 --name portainer --restart always -v /var/run/docker.sock:/var/run/docker.sock -v /opt/docker_data/portainer_data:/data portainer/portainer-ce
then connect to ip:9000, and setup admin user with password > 12 chars


follow the instruction from buanet

However, there are some caveats:



9 March 2020, 20:27 UTC in projectsOpenVPN and certificate ramblings
Just some infos for me to remember what to do when certificates expire.


21 January 2020, 13:48 UTC in projectsWindows 10 1803 / 1903 and NT style domains..

Since 1903 Windows 10 doesn't really offer a GUI way of adding a workstation to an NT Style domain. As I've been using Samba for a while, and still haven't upgraded to an AD (Active Directory) DC (domain controller) I was put in front of the task of adding 2 new workstations to the old NT style domain. In win10 (1903) I only found one way to do so (not documented in Samba's wiki):

Use PowerShell as an Administrator, and type the following code:

Add-Computer -ComputerName Server01 -LocalCredential Server01\Admin01 -DomainName Domain02 -Credential Domain02\Admin02 -Restart –Force

In order for this to work you need to:


30 December 2017, 21:07 UTC in projectsTasmota Fireplace on a witty cloud
Just a writeup of one of my latest projects.. emulating a fireplace with WS2812 LEDs


13 December 2017, 9:35 UTCSenior Alfons de Brabanel
2 December 2017, 19:30 UTC in projectsSonoff Touch specifics
8 November 2017, 10:54 UTC in projectsFHEM + Sonoff + MQTT/mosquitto + Amazon echo/Alexa
21 April 2017, 5:22 UTC in projectsWindows Live Mail 2012
19 July 2015, 22:06 UTC in photographyAirshow 2015
28 January 2015, 11:10 UTC in projectsolder robot
17 January 2014, 8:20 UTC in projectsRunning EMC1 on windows
27 October 2013, 21:11 UTC in projectsThermal leaking?
17 October 2013, 20:12 UTC in projectsbbb_parport
26 May 2013, 19:54 UTC in photographyWeekend train ride

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© 2005-2011 Alex Joni
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