Restrict document access for users in Mayan EDMS
1. Situation / Problem There are two (or more) organizational units. Each org unit uses Mayan to manage its documents. Each unit should only see and work on its own
From The Blog
Sharing Folders on a VirtualBox Host and client Ubuntu 20.04 Server
Sharing folders between a VirtualBox host and a client is normally presented as a no-brainer: Insert the (virtual) guest addons CD on the client machine, have the addons installed, go
Network Sharing of Scanners via Linux
There is a lot of confusing instructions circling around regarding network sharing of scanners. Windows users are told to install programs like BlindScanner, additional network devices are advertised, and even
F() Macro with Strings in Arduino Programming
When working with ESP8266 or with Arduino boards I sometimes come across expressions like client.println(F(“Server started.”)); – That is the moment when I wonder what difference there is compared to
Pinout for Wemos D1 Mini Pro China Clone
I recently bought a Chinese clone of the Lolin Wemos D1 Mini Pro ESP8266 device from the FEIYANG store at AliExpress. As I had problems running Wifi when setting the
Creating a custom Entry widget in PyGtk for use with Glade
The GtkEntry widget is pretty dumb: Whatever input is sent to the entry field (whether by user input or by the set_text method) is treated as a String. Time to
Creating custom widgets for PyGTK in Glade
When developing GUI applications for Python, PyGTK expects the the coder to define the complete layout of the GUI with its objects and the corresponding wiring of events, signals and
Installing Mayan EDMS on Ubuntu 20.04
The Mayan EDMS documentation offers two ways for the installation on a Ubuntu 20.04 LTS machine: The first one is via Docker, the second one is the direct installation. I
Import Geogebra plots to LaTeX
A couple of years ago I recommended using gnuPlot for producing high quality plots of functions and time series. There has been a lot going on in data visualization since
Uprgrading Raspbian from Stretch to Buster
With the new Buster release for the Raspberry Pi being out for some weeks, it’s time to upgrade my Pi Zero W server. Unfortunately, though, this is not so easy