Follow The Geek Diary, filter it, and define how you want to receive the news (via Email, RSS, Telegram, WhatsApp etc.) https://follow.it/the-geek-diary Sat, 25 Jun 2022 02:57:01 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX7JRf5kbw7kLhhSCv31NykC Quick Emulator (QEMU) is the main component of the QEMU/KVM virtualization technology suit. It provides hardware virtualization and processor emulation. QEMU runs in userspace and, without the need for kernel, drivers can still provide fast system emulation. QEMU supports two operating modes: Full system emulation, where QEMU emulates an entire computer system, including the CPU […]]]> Fri, 24 Jun 2022 13:18:19 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX7JRf5kbw7kLhhSCv31NykC https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX4z5fKPAIdbRJONpYks2fGs A new command that was introduced in systemd-based distributions that enables you to manage many aspects of time is timedatectl. When used without any arguments, this command shows detailed information about the current time and date. It also displays the time zone your system is in, in addition to information about the use of NTP […]]]> Fri, 24 Jun 2022 08:39:23 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX4z5fKPAIdbRJONpYks2fGs https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX5-ABPDNHxrskFW8UNEQjUn MPI is not a programming language. MPI defines a set of library routines that can be called from C and Fortran programs. MPI programs typically employ a single-program, multiple-data approach. Multiple instances, or MPI ranks, of the same program run concurrently. Each rank computes a different part of the larger problem and uses MPI to […]]]> Fri, 24 Jun 2022 07:53:20 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX5-ABPDNHxrskFW8UNEQjUn https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX6g4ij4jHfMlum6srrLMsqK KDE Plasma Workspaces is a popular graphical desktop environment for Linux-based systems. Once you have installed the “KDE Plasma Workspaces package group”, you can start the desktop environment using startkde. When you’re done using KDE and log out of the desktop, you’ll be returned to the console: # startkde To configure the system to automatically […]]]> Fri, 24 Jun 2022 07:07:42 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX6g4ij4jHfMlum6srrLMsqK https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX6N7JI-plbv67myhX6zo8SW The Windows Volume Shadow Copy Service (VSS) allows for backups of files, even protected system files, to be made while the operating system is running. Windows uses VSS to make periodic differential backups of the blocks of data on NTFS volumes. These backups are called volume shadow copies and are stored in the System Volume […]]]> Fri, 24 Jun 2022 06:40:52 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX6N7JI-plbv67myhX6zo8SW https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX6N7JI-plbv67G7Iy_4u0x9 Using ifrename is the easiest way to make sure your network cards keep the correct configurations on Linux systems. Usually, interfaces will come up in the same order, and the kernel will assign them the same names, but sometimes this can change (e.g., after a kernel upgrade or adding another network card). Your nice Linux […]]]> Thu, 23 Jun 2022 17:03:22 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX6N7JI-plbv67G7Iy_4u0x9 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX5yyL7vDNzgrFw3HFUzDTIP The GNU autoreconf tool, updates configure scripts by running autoconf, autoheader, aclocal, automake, and libtoolize in specified directories and subdirectories. This command is seldom invoked manually. It is usually called automatically from other autoconf tools. If you encounter below error: autoreconf: command not found you may try installing below package as per your choice of […]]]> Thu, 23 Jun 2022 14:11:36 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX5yyL7vDNzgrFw3HFUzDTIP https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX7eWvSGm5UVn_nNuMIJyU22 GoBuster is a tool that was built in the Go language, which can be used for brute forcing directories as well as brute forcing subdomains. Since GoBuster is built on Go, we first need to install Go first and then install or configure the GoBuster package. Up until my discovery of Gobuster, I was using […]]]> Thu, 23 Jun 2022 13:31:50 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX7eWvSGm5UVn_nNuMIJyU22 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX5sEbgVIRLVkQX50KYzL9tX uflash is a utility for flashing the BBC micro:bit with Python scripts and the MicroPython runtime. The BBC micro:bit board is the easiest alternative board to use with MicroPython. This is due to two software applications – a desktop application named Mu, and a command-line tool named uFlash. Mu is a full editor that you […]]]> Thu, 23 Jun 2022 13:19:06 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX5sEbgVIRLVkQX50KYzL9tX https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX5sEbgVIRLVkYvmyuk5fxzE IDLE is an integrated development environment that is bundled with the Windows and macOS Python distributions (it’s readily available in most Linux distributions as well, usually as IDLE or IDLE3). IDLE is written in Python using Tkinter, and it provides us with not only an editing environment for Python, but also a great example of […]]]> Thu, 23 Jun 2022 13:08:20 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX5sEbgVIRLVkYvmyuk5fxzE https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX7YY9Nl-C8XAle5jCclomp- In this article, we will see the different ways to add a header record or a trailer record to a file. Let us consider a file, file1. $ cat file1 apple orange grapes banana Adding a line to the start of the file (header) 1. To add a header record using sed: $ sed '1i […]]]> Thu, 23 Jun 2022 08:03:39 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX7YY9Nl-C8XAle5jCclomp- https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX44nRU7VtqTxlRpWVnEcNkS YUM is the default package management system for CentOS/RHEL and part of its role is to automatically calculate what packages may require updating, what dependencies are required, and to manage the entire process of updating your system in a very simple way. The main configuration file of YUM is /etc/yum.conf, and the main directory, which […]]]> Wed, 22 Jun 2022 15:29:05 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX44nRU7VtqTxlRpWVnEcNkS https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX4u4xssoMOEeReIF_fEM9tn dpkg-scanpackages utility creates a Packages file from a tree of binary packages. The Packages file is used by dselect to provide a list of packages available for installation. Basically, it is a tool that allows you to convert a directory containing .deb packages into a repository. If you encounter the below error: dpkg-scanpackages: command not […]]]> Wed, 22 Jun 2022 15:08:36 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX4u4xssoMOEeReIF_fEM9tn https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX72JXIGkCg6XLmyhX6zo8SW libguestfs is a command-line library of utilities for working with VM disks. This library consists of roughly 30 different commands, some of which are included in the following list: guestfish virt-builder virt-builder-repository virt-copy-in virt-copy-out virt-customize virt-df virt-edit virt-filesystems virt-rescue virt-sparsify virt-sysprep virt-v2v virt-p2v If you encounter below error: virt-sparsify: command not found you may try […]]]> Wed, 22 Jun 2022 14:21:11 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX72JXIGkCg6XLmyhX6zo8SW https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX75J2GZSXuuxgVLTsI7B9NX Ncview is a visual browser for netCDF format files. Typically you would use ncview to get a quick and easy, push-button look at your netCDF files. You can view simple movies of the data, view along various dimensions, take a look at the actual data values, change color maps, invert the data, etc. It runs […]]]> Wed, 22 Jun 2022 13:58:04 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX75J2GZSXuuxgVLTsI7B9NX https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX75J2GZSXuuxuQEmsPXZ5C9 When you install Java, it usually means one of two things: you are installing the Java Runtime Environment (JRE) or the Java Development Kit (JDK). The JRE provides the runtime that allows you to run Java programs, whereas the JDK contains the JRE, as well as other tools, that allow you to develop in Java. […]]]> Wed, 22 Jun 2022 13:48:12 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX75J2GZSXuuxuQEmsPXZ5C9 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX75J2GZSXuuxhhSCv31NykC lolcat is a program that concatenates files, or standard input, to standard output (like the generic cat), and adds rainbow coloring to it. In case you encounter the below error: lolcat: command not found you may try installing the below package as per your choice of distribution. Distribution Command OS X brew install lolcat Debian […]]]> Wed, 22 Jun 2022 07:07:10 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX75J2GZSXuuxhhSCv31NykC https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX6HJe1hWezvJASngkwrdsok SMB, also known sometimes as CIFS, is the protocol in charge of providing shared access to files and printers on Windows networks. To make things simpler we use both terms interchangeably. This service can run directly over TCP port 445, but it can also use the NetBIOS API. The Linux CIFS filesystem is composed of […]]]> Wed, 22 Jun 2022 06:53:03 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX6HJe1hWezvJASngkwrdsok https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX4GCqeaDMRSv1RpWVnEcNkS The Problem Getting below error message when trying to mount a filesystem: # mount /dev/mapper/vg-lv /mnt mount: /mnt does not contain SELinux labels. You just mounted an file system that supports labels which does not contain labels, onto an SELinux box. It is likely that confined applications will generate AVC messages and not be allowed […]]]> Tue, 21 Jun 2022 22:12:04 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX4GCqeaDMRSv1RpWVnEcNkS https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX5B6OTXT5E53d6jHbRcHw3s YUM (short for Yellowdog Updater Modified) is an open source tool that was developed by Red Hat Inc for RPM-based systems. It is a high-level package management tool that’s used for easily installing, removing, updating, or searching software packages on systems or in network repositories. It allows us to use a CentOS base and third-party […]]]> Tue, 21 Jun 2022 14:38:44 +0200 https://api.follow.it/track-rss-story-click/v3/d7NmEXQ7LX5B6OTXT5E53d6jHbRcHw3s