The loginctl program is part of the systemd set of utilities that allow you to manage your system. It allows you to manage current user sessions, view the list of active users, lock the screen or interrupt sessions altogether, and terminate user

In the step-by-step instructions, let's understand how to put Java 8 and Java 11 on CentOS Stream and switch between versions.

In the last article we discussed the main differences between the two operating system architectures - x32 and x64. Despite the obvious advantages of each solution, there are still debates among users about which one to choose. Some prefer x64,

OS bitness is required for the instruction set for the processor, these instructions will be used to work with the data and memory of the PC. There are two bit sizes - i386 (x32-bit) and x86_64 (x64-bit). x32-bit is obsolete and supports working

It is known that programs with graphical interface are more convenient to use, because they are designed for high requirements, plus the terminal allows you to solve certain tasks much faster. So there is a utility wc, it can count the number of

These networks are transmitted by packets. Packets pass through several other network nodes before reaching their destination to end up at the beginning of the destination's local network and then directly to the destination. It is not uncommon

You probably know about what journaling is. So, it is in file systems it is needed so that it is possible to recover the file system in case of a failure. This is especially useful in cases where data write operations were performed during the

Every Windows user is familiar with the fact that there is a disk defragmentation. It is necessary for the hard disk to function quickly, and it is necessary to defragment the disk on which the OS is installed. The Ext4 file system in Linux is not

GIMP offers a large number of tools for working with pictures. In its principle, the graphic editor is almost identical to Adobe Photoshop, but the peculiarity of this program is that GIMP is distributed completely free of charge. However, not all

When you install and run the Nginx web server, and further, in the case of installing Apache, OpenLiteSpeed or Lighttpd and with an attempt to start can find the error Address already in use.