Workaround for Android error „The connection pool for database ‘/data/user/0/com.android.providers.contacts/databases/contacts2.db’ has been unable to grant a connection to thread X (ContactsProviderWorker) …“

If you are living with Android Version 4.x or Cyanogenmod 10.x then you maybe recognize problems with some apps that want to retrieve data from the contacts database (contacts2.db). Remarkable indicators concerning my phone were: Contact app did not find any contact Other apps lacked or hung Enormous battery drain The error stays for quite … Read more

Setting up a Raspberry Pi as a download station with the help of JDownloader2

This article covers a step by step how-to dealing with the setup of JDownloader2 on Raspberry Pi. The complete setup is meant to be used as the user pi. Take care of it, if you like to set it up for another user. The goal Run a JDownloader2 instance that automatically starts when a desktop … Read more

Setting up a VNC server on Raspberry Pi using tightvncserver

This article covers a step by step how-to dealing with the setup of a remote desktop alternative on Raspberry Pi. The complete setup is meant to be used as the user pi. Take care of it, if you like to set it up for another user. Prerequisites Running Raspian How-to Install tightvncserver: sudo apt-get install … Read more

Providing 802.1X authentication with FreeRADIUS and PEAPv0/EAP-MSCHAPv2 support over a Raspberry Pi

This article covers a step by step how-to dealing with the right orchestration of some software components that can help to secure for example a guest network at your home. Because of the lightweight software usually an older Raspberry Pi model will be fine for the job. Most of the following steps will just be … Read more

OpenWRT – How to create a public network without using the wan interface

The goal is to build a public network (guest WLAN, hotspot, call it as you like it) with restricted access: Only several services are allowed (e.g. surfing). Clients from network 1 (192.168.4.0/24) shall not be able to communicate with hosts of network 2 (192.168.2.0/24) and vise versa. Most of the tutorials for OpenWRT only cover … Read more