In order to disable YUM package repository on CentOS we first need to get a unique repository ID using the following yum command:
# yum repolist
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: mirror.optus.net
 * epel: epel.mirror.digitalpacific.com.au
 * extras: mirror.ventraip.net.au
 * updates: mirror.optus.net
repo id              repo name                                            status
base/7/x86_64        CentOS-7 - Base                                      8,652
epel/x86_64          Extra Packages for Enterprise Linux 7 - x86_64       8,935
extras/7/x86_64      CentOS-7 - Extras                                      285
google-chrome        google-chrome                                            3
isv_ownCloud_desktop The ownCloud Desktop Client (CentOS_7)                  63
updates/7/x86_64     CentOS-7 - Updates                                   1,726
virtualbox/7/x86_64  Oracle Linux / RHEL / CentOS-7 / x86_64 - VirtualBox    13

The hostname of your CentOS 7 Linux is defined by the file /etc/hostname thus setting a new hostname for your system is just a matter of editing this file and replace a current hostname definition line with new one. However, doing so will not update your system;s hostname immediately thus a preferred way of changing a hostname on CentOS 7 Linux is to use nmtui and more specifically its child nmtui-hostname. Using nmtui-hostname tool will make the process of changing your hostname rather simple as executing a single command. The following linux command will change the hostname to linuxconfig.org:
# nmtui-hostname linuxconfig.org
hostname change centos 7 linux command
Hit the "OK" button on the pop-up dialog and you are done.

To install Google Chrome Internet browser on your CentOS 7 Linux box first download the actual Chrome 64 bit .rpm (For Fedora/openSUSE) ) package from Google's website https://www.google.com/chrome/#eula. Locate your downloaded .rpm and use yum command to install it allong with all other prirequsites:
# yum localinstall google-chrome-stable_current_x86_64.rpm 
Loaded plugins: fastestmirror, langpacks
Examining google-chrome-stable_current_x86_64.rpm: google-chrome-stable-44.0.2403.155-1.x86_64
Marking google-chrome-stable_current_x86_64.rpm to be installed
Resolving Dependencies
--> Running transaction check
---> Package google-chrome-stable.x86_64 0:44.0.2403.155-1 will be installed
--> Processing Dependency: lsb >= 4.0 for package: google-chrome-stable-44.0.2403.155-1.x86_64
...
Complete!

This config describes an installation of NVIDIA GeFNVIDIA GeForce Driver on CentOS 7 Linux 64-bit.

Prerequisites

First update your system. We do not wand to build NVidia modules on based on outdated Linux kernel. Do a full updated and reboot your system:
# yum update
# reboot

The Vagrant installation on CentOS Linux is a fairly simple few commands process. First, we need to download a official RPM from http://www.vagrantup.com/downloads.html. Open up your terminal and use wget command to download latest Vagrant RPM package eg:
$ wget -q https://dl.bintray.com/mitchellh/vagrant/vagrant_1.7.4_x86_64.rpm

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