You have an Android Device and you are familiar with Linux based operating systems. Maybe, you like SSH or telnet to communicate with the device; you want to setup your device as a router to connect home PC to the Internet. However, you will be surprised. Android has neither login screen nor possibility to gain privileged user access to the system to do these things. This is one of the Android security principles to isolate applications from the user, each other, and the system.

In this article, I will describe you how to gain root access on an Android device in spite of security. I will delve deeply into one of the Android rooting principles - the adb exhaustion attack, which is simpler to understand than a previous udev exploit. It is suitable for all Android-powered devices with the version 2.2 and lower.

This article describes a simple solution that will help you to clear out the principles of how Windows system starts processes and show how you can set some filters for process start, including allowing and forbidding them.

Anyone who wants to develop programs for the products of Apple Company meets such a moment in his life when he needs to learn new programming language - Objective-C. I met such moment once too. I decided to take notes of my thoughts when understanding the documentation to remember the main specifics of this language.

This article demonstrates one possible method of merging N sorted large text files using Forecasting algorithm in the style suggested by D.Knuth. The demo app "for_merge" will merge them faster than standard Unix "sort" utility by starting test suite. This code also could be useful for implementation of second part of Merge-Sort algorithm (where merging takes place). Note, that Input files are generated before test suite starts.