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LFCS - Linux Foundation Certified SysAdmin - Exam Preparation Guide

Archive : Linux Distros

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Automated Installations of Multiple RHEL/CentOS 7 Distributions using PXE Server and Kickstart Files

Automated Installations of Multiple RHEL/CentOS 7 Distributions using PXE Server and Kickstart Files
This article is an extension of my previous PXE Boot Environment Setup on RHEL/CentOS 7 and it’s focused on how you can perform Automatic Installations of RHEL/CentOS 7, without the need for user intervention, on headless machines using a Kickstart file read from a local FTP server. The environment preparation for this kind of installation has already been processed on the previous tutorial regarding PXE Server setup, the only key missing, a...
Filed in: CentOS

14 Things to Do After Installing Ubuntu 14.10 (Utopic Unicorn)

14 Things to Do After Installing Ubuntu 14.10  (Utopic Unicorn)
Canonical finally announced the availability of Ubuntu 14.10, the new release came with many updated packages and programs which is very good for people who are looking for the most updated packages, in this article, we’re going to talk about the most important 14 things to do after install Ubuntu 14.10. Things Do After Installing Ubuntu 14 10 First you may would like to view our tutorial about installing Ubuntu 14.10 on your machine, then...
Filed in: Ubuntu

Upgrade Ubuntu 14.04 (Trusty Tahr) to Ubuntu 14.10 (Utopic Unicorn)

Upgrade Ubuntu 14.04 (Trusty Tahr) to Ubuntu 14.10 (Utopic Unicorn)
So, Ubuntu 14.10 has just been released, you may check our previous article about it in order to discover the new features. In fact, Ubuntu 14.10 has no big special features or updates, it is just a bug-fixing & package-updating release, but it’s a good release for those people who want to have the most-recent packages in the their system. Ugrade to Ubuntu 14.10 Read Also: Ubuntu 14.10 New Features In this article, we’re going...
Filed in: Ubuntu

Ubuntu 14.10 Code Name “Utopic Unicorn” Desktop Installation Guide with Screenshots

Ubuntu 14.10 Code Name “Utopic Unicorn” Desktop Installation Guide with Screenshots
Ubuntu 14.10 has been released on 23 October 2014 with many updated packages and programs, Ubuntu 14.10 was released under the codename “Utopic Unicorn” and is expected to be supported until 23 July 2015 (9 months only because it’s not a LTS release). Ubuntu 14.10 Desktop Installation Ubuntu 14.10 Features Updated packages like: Linux Kernel 3.16, Firefox 33, Libreoffice 4.4.3.2. Unity 7.3.1 is the default desktop interface, which features...
Filed in: Ubuntu

The Final Release of Ubuntu 14.10 is Here – New Features, Screenshots and Download

The Final Release of Ubuntu 14.10 is Here – New Features, Screenshots and Download
After 6 months of continuous development, Ubuntu team finally released Ubuntu 14.10 under the codename: “Utopic Unicorn” with some new updates. In this article we’re going to talk about the most important new features in Ubuntu 14.10. Ubuntu 14.10 Released What’s new in Ubuntu 14.10? Will, there are some updates but they are not very big anyway. Like other releases of Ubuntu, many packages have been updated to the recent releases,...
Filed in: Ubuntu

Setting up a ‘PXE Network Boot Server’ for Multiple Linux Distribution Installations in RHEL/CentOS 7

Setting up a ‘PXE Network Boot Server’ for Multiple Linux Distribution Installations in RHEL/CentOS 7
PXE Server – Preboot eXecution Environment – instructs a client computer to boot, run or install an operating system directly form a network interface, eliminating the need to burn a CD/DVD or use a physical medium, or, can ease the job of installing Linux distributions on your network infrastructure on multiple machines the same time. Setting PXE Network Boot in RHEL/CentOS 7 Requirements CentOS 7 Minimal Installation Procedure RHEL...
Filed in: CentOS

Setting Up “NTP (Network Time Protocol) Server” in RHEL/CentOS 7

Setting Up “NTP (Network Time Protocol) Server” in RHEL/CentOS 7
Network Time Protocol – NTP- is a protocol which runs over port 123 UDP at Transport Layer and allows computers to synchronize time over networks for an accurate time. While time is passing by, computers internal clocks tend to drift which can lead to inconsistent time issues, especially on servers and clients logs files or if you want to replicate servers resources or databases. NTP Server Installation in CentOS and RHEL 7 Requirements: CentOS...
Filed in: CentOS, RedHat

Disable and Remove Unwanted Services on RHEL/CentOS 7 Minimal Installation

Disable and Remove Unwanted Services on RHEL/CentOS 7 Minimal Installation
RHEL/CentOS 7 minimal installation for servers comes with some default pre-installed services, such as Postfix Mail Transfer Agent daemon, Avahi mdns daemon (multicast Domain Name System) and Chrony service, which is responsible to maintain system clock. Remove Services in CentOS 7 Now comes to the question.. Why wed need to disable all these services. if they are pre-installed? One of the main reason would be to increase system security level...
Filed in: CentOS, RedHat
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