1 Jun 2017
Linux, Samba, Tips & Tricks, Windows
I have some (virtual) Windows machines running in a network of Linux
hosts. I keep some Windows applications (most notably, WSUS
Offline Update) on an external hard drive that is connected to a Linux
host via USB and shared with the Windows machines via Samba. Despite
relaxing the Windows security settings more and more, Windows refused to
run the applications on the shared drive until I made a change to the
Samba configuration on the Linux host.
28 Aug 2016
Rails, Server, Tips & Tricks, troubleshooting
After upgrading a Rails web application from Rails 4.2 to Rails 5.0 and
attempting to deploy it using Capistrano, I got stuck on “Your Ruby
version is 1.9.3, but your Gemfile specified 2.3.1” errors that gave me
quite a headache – but the solution is really simple.
26 Oct 2015
Tips & Tricks, Ubuntu
After a clean install of Ubuntu 15.10, all my custom
programs had disappeared.
26 Oct 2015
Network, Tips & Tricks, Ubuntu, VirtualBox
A simple trick prevents VirtualBox host-only networks from disappearing after resume
25 Sep 2015
Linux, Tips & Tricks, hardware, printing
I have an HP LaserJet P2015dn printer that used to cause me headaches and has been causing trouble for some time now again. …
21 Sep 2015
Galaxy, Photo, Samsung, Tips & Tricks
Photos that contain 'garbage' text in their embedded comments can be repaired quite easily on Linux.
30 Apr 2014
PowerPoint, Tips & Tricks
Images that are inserted into a PowerPoint® presentation often do not
appear at the right size and may look blurry when the size is manually
adjusted after inserting them. In newer versions of PowerPoint, there is a
special image setting that can be used to achieve a pixel-by-pixel,
non-blurry appearance. But using this setting manually for every inserted
image is cumbersome and requires lots of clicks. In this post I show how
to set the DPI to a value that ensures proper display.
21 Mar 2014
Excel, Tips & Tricks
If the arrow keys do not move the cell cursor in Excel, but rather the
entire sheet, then the ‘scroll lock’ function is most certainly turned on.
To turn it off, simply press the Scroll Lock key on your keyboard. But what
if your keyboard does not have a Scroll Lock key? The solution is simple.
25 Feb 2014
Charts, InkScape, Tips & Tricks
Using the excellent Inkscape vector graphics program, it is possible to export Excel charts to scalable vector graphics (SVG) files.
24 Dec 2013
Linux, Tips & Tricks, code
In this article, I describe how to create a single A4-sized PDF document
containing two copied of a single-page, A5-sized PDF document. This is
useful for custom A5 forms that are to be printed in duplicate on A4
sheets, so that two A5 forms can be obtained by cutting the A4 paper.
20 Nov 2013
Tips & Tricks, hardware, printing
The LaserJet P2015dn printer may lose network connectivity and no longer respond to printing requests. A commonly used, albeit weird solution for this problem is to bake the 'formatter board' on the oven. In this post I describe how I accessed the formatter board in order to bake it in the oven.
27 Mar 2011
Linux, Mendeley, Tips & Tricks, code
Mendeley is a great piece of Software to organize one’s collection of PDF articles. It did a fairly good job indexing the several thousand …