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Google Maps SDK does not show map in Release Build (works in Emulator)
I’ve been waisting some hours by hunting a stupid “bug”: I am using Android Studio and was following the “Maps SDK for Android > Getting Started” guide. Of course I also ran into the issue of a wrong API key. But this was all solved by Googling and StackOverflow. The map still showed up in…
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How to make space/storage efficient backups of Raspberry Pi SD-cards
RaspberryPi mini computers are great for all kinds of home automation, media centers, home servers. Yet it should be known that the draw back for permanent operation can be the SD-card. Especially when applications on the RasperrbyPi cause excessive read/writes or if it is used outsides where temperatures can reach the SD-Card operating limits, IO…
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How to install TvHeadend on a Raspberry Pi
Tvheadend is a TV streaming server and recorder for Linux. It also offers a great possibility to combine a SAT-recorder with KODI mediacenter on a Raspberry Pi (I would recommend a raspberry Pi 3 due to RAM requirements). Installing Tvheadend by compiling from source was not so easy, so it is definately easier to install…
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Let’s Encrypt with Tomcat 7
Using HTTPS on Tomcat with a let’s encrypt certificate is quite easy – as soon as you know how to do it (as usual). acme.sh provides a quite convenient way of getting and renewing certificates. This is extremely important as the certificates have a lifetime of just 60 days. So get and “install” acme.sh first!…
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How to run Tomcat on Port 80
A standard Tomcat installation starts the webserver on port 8080 – which is usually not the desired behavior. In order to change the server to port 80 there are two options which I outline in the following:
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Where to install custom / portable programs in Windows10/8.x?
There are a couple of programs that cannot be installed / put into the regular locations (c:\Program Files and c:\Progam Files (x86)) as they cannot be run in non-administrator mode. So – where should you put / install those programs? Fortunately Windows comes with a good place for those programs. Just put them into %LOCALAPPDATA%\Programs which…
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Mount vmWare shared folder in Ubuntu guest
If you want to share files between a Windows Host and a Ubuntu Linux guest, the “shared folder” feature is really handy. Just enable it in the VM-Settings, install guest additions and … then wonder where this shows up in the VM. “They appear under /mnt/hgfs” I read everywhere. Well, they do – as soon…
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How to fix: Windows 10 store fails to update or hangs during download / update
For a couple of days I saw some pending updates in my Windows 10 store that didn’t seem to install or download. The downloads were either in progress or done but none of them installed. Restarting the downloads didn’t help either. Some quick research came up with all kinds of Powershell and registry hacks. Quite…
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How to enable Camera Streaming on a Raspberry Pi
This is a very brief tutorial how to get a stream of the Raspberry Pi camera into a browser. The original article can be found here. I was searching a lot how to stream directly from the camera to the network, yet I did not find a solution. So what we are doing here is…