Linux - Suay.Site

How to boot into VirtualBox from USB

Posted by Alex On November 11, 2021

In this post I will tell you how to connect a USB disk (or USB flash drive) to a virtual machine so that the guest system treats it like a regular hard disk. This trick will allow you not only to boot from the installation USB – which is rather pointless. If you connect a USB disk or flash drive...

How to pause GIF on Windows, Linux, Mac OS

Posted by Alex On August 23, 2021

GIF animation can be used as a visual demonstration of anything: the operation of programs, physical processes, the sequence of actions during repairs or exercise – anything. GIF animation is like a small looped video without sound. This way of presenting changing data and schemas is very popular because when inserted into the HTML of the page, the GIF is...

libpcap-dev for Cygwin

Posted by Alex On May 26, 2021

When compiling programs from source in Cygwin, an error may occur containing the line “when searching for -lwpcap”. The essence of the error is that the headers of the pcap library are searched. These header files are present in the libpcap-dev package (Debian and derivatives). This package may also be called libpcap (for example, on Arch Linux). There are no...

All about MAC addresses: what are they for, how to view and find out the manufacturer by MAC address

Posted by Alex On May 8, 2021

A media access control address (MAC address) of a computer is a unique identifier assigned to network interfaces for communications at the data link layer of a network segment. MAC addresses are used as a network address for most IEEE 802 network technologies, including Ethernet and Wi-Fi. MAC addresses are most often assigned by the manufacturer of a network interface...

How to recover metadata in processed photos

Posted by Alex On December 22, 2020

Photo metadata is information that is contained within the image file, it can include GPS coordinates, information about the time of shooting, about the settings of the camera and the camera itself, as well as other information. After processing in a photo editor, meta information may be lost. This tutorial will show you how to get meta information back in...

Error in LMDE “cryptsetup: WARNING: The initramfs image may not contain cryptsetup binaries nor crypto modules” (SOLVED)

Posted by Alex On June 13, 2020

When updating the system, if it was necessary to rebuild initramfs (usually necessary after every Linux kernel update), a warning appeared in LMDE and other Linux distributions. This is not a critical warning and not an error – in fact, this is information about incorrect system configuration. Example of this notification: cryptsetup: WARNING: The initramfs image may not contain cryptsetup binaries nor...

How to configure Linux LMDE login without entering a password

Posted by Alex On June 12, 2020

LMDE is the Linux Mint Debian Edition. As with all Linux Mint, during installation, you can select the option “automatic login”, that is, login to Linux without entering a user and password. If during installation you did not select this option, and then changed your mind and decided to configure login without a password in LMDE, then this instruction will...

How to install VirtualBox Guest Additions in Linux LMDE

Posted by Alex On June 12, 2020

LMDE is the Linux Mint Debian Edition, i.e. Linux Mint based on Debian. VirtualBox Guest Additions are kernel modules (drivers) that are needed if you run Linux LMDE in a VirtualBox virtual machine. Thanks to guest additions it is possible: enable a shared clipboard between the real operating system and the guest OS enable file drag and drop between host...

WordPress: A critical error occurred on the site – impossible to enter the control panel (SOLVED)

Posted by Alex On February 21, 2020

After updating the plugins in WordPress on my VPS server, the site stopped opening. And it was even impossible to open the control panel – a message was displayed during all attempts (you can see a screenshot in the header of this article): A critical error occurred on the site. Please check the incoming admin mail for further instructions. Learn...

How to check if a package is installed on Linux Mint

Posted by Alex On February 21, 2020

All Linux distributions consist of the same components: kernel, display manager, graphical desktop environment, pre-installed programs. To make users somehow distinguish distributions from each other, their builders install different wallpapers and add their own programs. Unfortunately, the desire of distributors to stand out and become more “friendly” to the user leads to ridiculous (let's say bluntly, idiotic) problems. And, most...