- Red Hat
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2DayGeek: Multiple ways to view/read archived file contents on Linux.
Performance appraisal has been done via attempt to set up Manjaro 19.0 Guest as KVM virtualization host installing Qemu && Libvirt via native command `pacman -S`.
A new important Linux kernel security update has been released on February 26th for the Red Hat Enterprise Linux 7 and CentOS Linux 7 operating system series to address critical vulnerabilities.
This tutorial explains how to install and configure the latest version of Redmine on CentOS 8. We'll use MariaDB as a database back-end and Passenger + Apache as a Ruby application server.
Best Linux File Compression and Archive Tools.
Patches for the latest critical sudo security vulnerability have landed in the stable software repositories of CentOS Linux 7 and Red Hat Enterprise Linux 7 operating system series.
The Red Hat survey found that proprietary software usage is in decline as open-source software continues its take over of the enterprise software world.
This brief tutorial explains how to reset Root user password in CentOS 8 and RHEL 8 server editions from emergency mode or single user mode.
RHEL 8 is the latest release of the popular enterprise distribution. Whether you're installing RHEL for the first time, or you're installing the latest version, the process is going to be fairly new to you. This guide walks you through the steps in the latest Red Hat Anaconda installer.
The private open-source OpenStack Infrastructure-as-a-Service cloud has a new major release from Red Hat.
In meantime the only option brought me to success installing telegram-desktop on CentOS 8.1 appears to be snap.
Support ends May 26. Users fretting over Fedora CoreOS's limitations might want to jump into Flatcar. Red Hat is set to fling a flaming arrow at Red Hat CoreOS Container Linux*, the software firm said as it laid out the details of the end of life timeline for the distro it acquired in January 2018.…
OTRS is an open source service management solution used by many companies around the world. It's extensibility and ability to integrate with other systems no doubt add to it's popularity. Written in perl, this software will run on mostly anything, and it's low requirement on resources makes it ideal even for a small business to start ticketing, or standardize their internal processes.
Apache Spark is a distributed computing system. It consists of a master and one or more slaves, where the master distributes the work among the slaves, thus giving the ability to use our many computers to work on one task. One could guess that this is indeed a powerful tool where tasks need large computations to complete, but can be split into smaller chunks of steps that can be pushed to the slaves to work on. Once our cluster is up and running, we can write programs to run on it in Python, Java, and Scala.
Apache Cassandra is an open-source NoSQL database. One of it's main features is it's decentralized nature that gives unique fault tolerance. Having our data replicated across datacenters means our production will not suffer from the loss of one of our sites, something all sysadmins dream of (or really happy to have such setup).
Apache Bench is a useful little tool for testing the response time of a webservice, and thus the performance of the webserver. We can specify the number of requests to send, the target URL, set up concurrency, just to name a few of this tool's settings.
Composer is a dependency management tool for php, much like cpan for perl. If you have read the tutorial about installing cpan, the architecture will be somewhat familiar. Composer, as a command line tool is the client that can fetch and update the php libraries we mark as needed, as well as the libraries these depend on, etc.
DLN Xtend, Linux Kernel 5.5, Solus 4.1, Tails 4.2, Kali Linux, elementary OS, Sudo Bug, Pine64 HardROCK64, PinePhone, Canonical Anbox Cloud, Kdenlive, RawTherapee, Kubuntu Focus, WINE, Proton & more
Kickstart installations let us easily script and replicate unattended or semi-unattended installations of Fedora, Red Hat Enterprise Linux or CentOS. The instructions needed to install the operating system are specified, with a dedicated syntax, inside a Kickstart file which is passed to the Anaconda installer.
2DayGeek: Glances is a best alternative to top/htop command on Linux. If you have never tried it before, you can try it now.
semanage command is not found in CentOS 7 / CentOS 8 and RHEL 7 / RHEL 8 minimal editions. Here is how to find which package provides semanage command and install it.
netstat command not found in CentOS 7, 8 and RHEL 7, 8. Here is how to get the netstat command working in CentOS 7/8 and RHEL 7/8 systems.
This step by step guide explains how to install Apache, MariaDB, PHP (LAMP Stack) in CentOS 8 minimal server.
2DayGeek: These Linux commands allow you to check the memory usage on Linux.
It was widely expected that Red Hat's Jim Whitehurst would be Ginni Rometty's successor. Instead, the job is going to Arvind Krishna -- and that's probably a good thing.
2DayGeek: The top command enables you to identify high memory and cpu processes on Linux.
In this tutorial, you will learn how to install PHP 7 on CentOS 7. To be more specific, you will learn how to install PHP 7.1, 7.2 and 7.3.
2DayGeek: This tutorial shows the difference between DNF vs YUM.
Apache Kafka is a distributed streaming platform. With it's rich API (Application Programming Interface) set, we can connect mostly anything to Kafka as source of data, and on the other end, we can set up a large number of consumers that will receive the steam of records for processing. Kafka is highly scaleable, and stores the streams of data in a reliable and fault-tolerant way.
Tuptime, the uptime command's alternative, is a command line utility to find Linux system uptime details.
Red Hat announced today the availability of the beta version of the upcoming Red Hat Enterprise Linux 8.2 operating system, the second maintenance update to the Red Hat Enterprise Linux (RHEL) 8 series.
Using Restricted Shell, we can easily limit user's access to the Linux system. Once you put the users in restricted shell mode, they are allowed to execute only limited set of commands.
Red Hat is releasing a new version of its OpenShift Kubernetes platform, OpenShift 4.3, with better container storage support via Red Hat OpenShift Container Storage 4.
The NVIDIA Driver is a program needed for your NVIDIA Graphics GPU to function with better performance. It communicates between your Linux operating system, in this case Red Hat Enterprise Linux 8, and your hardware, the NVIDIA Graphics GPU. The NVIDIA drivers can be installed by using the bash command after stopping the GUI and disabling the nouveau driver by modifying the GRUB boot menu.
The CentOS community announced today the general availability of the CentOS Linux 8 (1911), based on the source code of the Red Hat Enterprise Linux 8.1 operating system.
This tutorial covers step by step installation and configuration of Ansible on Redhat Enterprise Linux 8. Ansible is the leading Open Source configuration management system. It makes it easy for administrators and operations teams to control thousands of servers from central machine without installing agents on them.
Red Hat Enterprise Linux version 8.0 has been out for some time and is available for testing purposes on RedHat's website. All you need to do to get it is create an account if you don't already have one, download the ISO and install it using your credentials. If you have previously worked with the 7.x branch of Red Hat Enterprise Linux or CentOS the installation process will be familiar to you since not much has changed.
There are a ton of ways that you can install RHEL 8 on a virtual machine. This guide will cover using KVM with and without virt-manager as well as VirtualBox.
2DayGeek: This tutorial will help you to discover high CPU consumption processes in Linux.
Packages such as systemd (“packages” would be an understatement — that’s like calling Linux a “package”) present a new kind of threat, which some in the community have dubbed “Open Source Proprietary Software” (or “OSPS” for short); we need prominent groups and projects to highlight the nature of this threat, which serves to promote monopolies (open gateway into complexity, aided by silence and complicity)
When Opensource.com launched in 2010, Red Hat CEO Jim Whitehurst said the site "is one of the ways in which Red Hat gives something back to the open source community." And that community has always included the growing number of people who are new to open source.
In 2019, we published many articles about the open source way of thinking, choosing hardware, the contribution process, and other topics geared toward newbies. If you're new to open source, this list of Opensource.com's top 10 articles from 2019 about getting started with open source should put you on the right path.
RPM (RedHat Package Manager) is the default package manager for RedHat & for many other Linux distributions based on it like CentOS, Oracle Linux, and Amazon Linux among others. RPM is used for processing the packages with .rpm…
The year is still ending and the perfect time to reflect and look back at some Magazine articles continues. This time, let’s see if the editors chose some interesting ones from 2019. Yes, they did! Red Hat, IBM, and Fedora IBM acquired Red Hat in July 2019, and this article discusses how nothing changes for […]
Fkill, stands for Fabulous Kill, is a cross-platform command line utility to interactively search and kill multiple processes at once.
This tutorial gives you several options to check Apache (http) web server uptime on Linux.
The Mouse Cursor on the guest VM on Redhat Linux KVM is not pointing or working properly. To resolve this issue, we need to add additional hardware on your guest VM under virt-manager utility. Here's how to do it.
Getting audio, video technical and tag information using MediaInfo on Linux.
This tutorial allows the Linux administrator to automatically record the terminal activity of all users for future reference.
Linux has now already been certified to meet the three different security certifications required by the United States Department of Defense.
If you ever wondered how to execute commands on remote Linux systems over SSH from your local system, here is how to do it.
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