Wireshark is a popular program that allows you to analyze network traffic. The program allows the user to view the contents of network packets at different levels of network operation. In addition to directly analyzing traffic, the program has the ability to decrypt encrypted wireless network packets. Unlike the console utility tcpdump, Wireshark has a very convenient graphical interface.
FFmpeg is a tool for converting files in most known video formats. The FFmpeg program has no graphical interface, but it allows you to perform tasks that other video converters are simply powerless to do. In this article, let's see how to install FFmpeg in Ubuntu 20.04 from the official repositories, as well as using the snap package. And then let's talk about how to use it to convert a small video from one format to another.
This is the name of a queue server that can handle messages using AMQP (Advanced Message Queuing Protocol). Several other protocols are also used with the help of plugins. Most often used as a broker of text messages, it receives messages from programs that generate them and delivers them to programs that are ready to receive them. The server itself is written in Erlang.
In Linux, users and groups are used to access the file system. Each file has an owner user and a group from which users can access it. This is a very simple yet flexible privilege system. Users are used not only for people working on the PC but also for running processes, allowing you to limit their sphere of influence. Next we will look at how to add new users to Debian.
The advantage of Linux is that you can customize anything you want. This is the advantage of projective systems over procedural systems. It is a kind of constructor, consisting of individual blocks, each of which can be customized at will.
Virtual machines are ubiquitous these days for testing various operating systems and performing other tasks. A popular and free program for running virtual machines is VirtualBox.
LibreOffice Calc table processor allows you to delete table rows with repeating values in cells completely automatically. The function of removing duplicates in this program is not implemented in the most obvious way, but it is quite easy to understand it.
Debian is most often installed with the Gnome desktop environment. But if, after initializing your system, you change your mind and want a simple solution, install XFCE. This is not a bad environment. XFCE has a desktop, a panel with windows of running applications, and a dock with shortcuts to programs you can run. Debian works well with many environments. Let's see how to install XFCE in Debian 10.
Today, databases are used almost everywhere, especially large companies and application development teams need them. If you decide to make a website, you will not be able to build its effective and proper operation without a database. You will need it to store dynamically changing information. Usually it is one of the most popular databases - MariaDB or MySQL.
Oracle Virtualbox application, a free platform, cross-platform program and set of powerful tools for x86 virtualization. It is primarily designed for desktops, servers and workstations. The program can run on Linux, Solaris, Mac OS X and Microsoft Windows. It is compatible with any version of BSD, IMB OS/2, DOS, Netware, L4, QNX and JRockitVE. Both 32 bit and 64 bit architectures are supported. But at the moment the program can work only on AMD64 and Intel64 and x86 architectures.