In this tutorial, we will learn how to install the latest kernel version on multiple Linux distributions.
What Is A Kernel
First, let’s define what a kernel is defined as. The Linux kernel is basically the brain of your hardware. Its main purpose is to facilitate communications between your hardware and software. As an example, if an application needs to make a change (say switching the screen resolution of your monitor), the software submits a request to the kernel, and the kernel uses the available video driver options to modify the resolution.
Have you ever wanted to review past updates or roll back an update that broke your sites or negatively affected some aspect of your server’s operations? Well, you can accomplish this easily by using the yum history command.
The purpose of this article is to describe and explore ways to copy or backup your currently existing installed software titles into a single file for later use. We can then use this file to reinstall the software onto another system or clone the existing software across multiple Linux systems on or across a network. This method also prevents the need to install software titles one by one.
Reading Time: 4minutesWhen you’re considering which Operating System to use for web hosting, there are many options available to you. We’re going to discuss 5 reasons you should choose CentOS 7 and the strengths of the platform. CentOS has been the preferred Linux distribution in the hosting industry for many years, and it was only recently that this distro was overtaken by Ubuntu Server as the primary OS used for web hosting.
Yum, or the Yellowdog Updater Modified, is a package manager for RPM-based distributions; DNF, sometimes referred to as Dandified Yum, is the next generation of that package manager.
Do yum commands still work with DNF?
Yes, for the most part DNF usage is very similar to yum’s. Additional information on DNF detailing the similarities, and differences, will be available in the Liquid Web Knowledge Base very soon.
When did DNF become the default package manager for Fedora?
DNF has been the default package manager for since the 22nd version of Fedora, Fedora 22. Dandified Yum was introduced in Fedora 18.
Why was yum replaced with DNF?
Yum has long been considered a poor performer. It was notorious for high memory usage, and the slowness when resolving dependencies. DNF now uses libsolv, an external dependency resolver, and hawkey for resolving dependencies, while yum used its own, internal, dependency resolver.