This post summarizes the types of software licenses. When comparing software licenses, some are more permissive or restrictive than others, indicating that the limitations of use are more expanded or limited. These licenses are introduced on this post in descending…
This post is about summarizing different ways to check if user is admin in Java Use system calls to check if user is admin A Java application can call system command through the class Runnable You can see this post…
This post explain different methods to call the operating system commands or native code from a Java application. Methods to call a native function Method 1. Use Runtime class Runtime class contains the exec method that allows the application to…
This post explains how to check if your user has admin rights using your command line. Linux Using sudo command You can run a command like this: timeout 2 sudo id && echo Access granted || echo Access denied Mac…
Packaging a Java App for Distribution on Windows There is a discussion about this topic on this link: Packaging a Java App for Distribution on Mac OS X Follow the instructions by Oracle: Packaging a Java App for…
This are the instructions to add an icon the a Java Swing application. Icon is loaded from an image. In order to load this image we make use of File and Buffered Image classes. Icon can be shown in different…
A developer may need to shut down a computer from a Java application. This post explains how it can be done. Ways to identify operating system In all solutions proposed here we are calling the OS directly to shutdown…
This tutorial assumes that your operating system is Linux, in any of its variants (Kali Linux, Ubuntu, etc.) Step-by-step Procedure 1. Ensure aircrack-ng suite is installed in your computer Open a terminal and type: sudo apt-get update Install aircrack-ng suite:…
Encryption algorithms: Encryption protocols: Wi-Fi security modes: Authentication options supported by WPA, WPA2 and WPA3: PSK is the use of a static fixed password or authentication. ENT enables the leveraging of and existing AAA (Authentication, Authorization and Accounting) service to…
Before reading this article, you may find useful to have a look at the preliminary post about encryption concepts for IT, that explains step-by-step the needs for a Public Key Infraestructure. What is a Public Key Infrastructure (PKI)? When establishing…