RHEL7 or CentOS7 Setup KVM Virtualisation Environment

In this RHEL7 / CentOS7 tutorial we will take a look at how to setup a kvm virtualisation. We started by installing an OS on the main system, where we add a kvm installation. More »


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Add systemd service to Start Wake On LAN

In a previous tutorial we looked at how you can setup Wake on LAN (wol) on RHEL7 or CentOS7. In this tutorial we take another look at wol by adding a UDEV rule and systemd service, because the ETHTOOL_OPTS is deprecated. More »


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RHEL 7 or CentOS 7 Network Service Control

In this CentOS Linux version 7 or Red Hat Enterprise Linux version 7 tutorial we will take a look at the network service using command line options. We for instance look how to stop/start/restart or get the status of the network service.

From version 7 of RHEL (CentOS, Fedora, Scientific linux) systemd is used. It replaces Upstart as the default init system and can be used to control services (service and system manager) of the Linux operating system. More »


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I/O Redirection – STDIN, STDOUT, STDERR streams

Unix and Linux treat data streams and peripherals device files as files. By default there are always three files open, stdin (keyboard), stdout (display) and stderr (error messages outputted on the screen). As with every open file, it is possible to redirected the three files. For instance you can redirect (capture) the output of a command, file, script and send it to another command, file or script as input. More »


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Linux Shell or Command Line Interface – Getting Started

In this section we will post a number of tutorials where we take a look at how to use the Linux Shell or also so called Linux¬† Command Line Interface (CLI). The goal of this tutorial is to help you get started with the Linux command line and explain some things you need to know before you should start with the other tutorials. In short: this is the introduction tutorial! More »


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