March 8, 2021

Category: Administration

Administration, Basics, LinuxNix

Creating namespaces in Linux using unshare

Introduction In a previous post, we talked about how kernel namespaces and cgroups form the building blocks of containerization in Linux. In this article, we will explore namespaces in more depth by demonstrating some examples of creating namespaces using the unshare command.Namespaces use the clone(), unshare() and netns() system calls to allow different process hierarchies […]

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dnf package manager examples
Administration, dnf, LinuxNix

dnf package manager examples

Introduction DNF is considered to become the replacement for yum as the next default package manager for yum. The dnf package manager was introduced with Fedora 18 and had been designated as the default package manager as of Fedora 22. DNF has the following advantages over its predecessor yum: Provides faster dependency resolution for packages […]

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Netstat : Master it with these 6 steps
Administration, Basics, LinuxNix

Netstat : Master it with these 6 steps

Netstat is a command line utility that can be used to list out all the network connections on a system. It lists out all the tcp, udp socket connections and the unix socket connections. Netstat also displays various network related information such as network connections, routing tables, interface statistics, masquerade connections, multicast memberships etc. In this […]

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npm package manager – install and use on Centos 7
Administration, Basics, LinuxNix, npm

npm package manager – install and use on Centos 7

Introduction Node.js is a Javascript platform for server-side programming that allows users to build network applications quickly. JavaScript is a client-side programming language, which means it’s processed within the user’s browser. With the advent of Node.js, JavaScript can also be used as a server-side language. By leveraging Javascript on both the front-end and the back-end, […]

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