Objective

The objective is to install VirtualBox Guest Additions on CentOS 7 Linux

Operating System and Software Versions

  • Operating System: - CentOS Linux release 7.5.1804 (Core)

Requirements

Privileged access to your Ubuntu System as root or via sudo command is required.

Difficulty

EASY

Conventions

Objective

In order to administer DNS server (bind) from a command line, the RNDC utility needs to be correctly configured to avoid error message such as "rndc connect failed 127.0.0.1 connection refused". The objective is to configure RNDC for Bind DNS server on CentOS 7 Linux.

Operating System and Software Versions

  • Operating System: - CentOS Linux release 7.4.1708 (Core) Linux
  • Software: - Bind 9

Requirements

Privileged access to your Ubuntu System as root or via sudo command is required.

Difficulty

EASY

Conventions

Objective

The objective is to remove old unused kernel.

Operating System and Software Versions

  • Operating System: - CentOS 7

Requirements

Privileged access to your CentOS server will be required.

Difficulty

EASY

Conventions

Objective

The objective is to remove all orphaned packages from CentOS Linux. By orphaned packages we mean all packages which no longer serve a purpose of package dependencies.

For example, package A is depended on package B, thus, in order to install package A the package B must also be installed. Once the package A is removed the package B might still be installed, hence the package B is now orphaned package.

Operating System and Software Versions

  • Operating System: - CentOS 7

Requirements

Privileged access to you CentOS Linux system will be required.

Difficulty

EASY

Conventions

Objective

The objective is to install latest Chromium Web Browser on RHEL7 Linux.

Operating System and Software Versions

  • Operating System: - Redhat Enterprise Linux 7.3
  • Software: - Chromium Version 58.0.3029.110 Fedora Project (64-bit)

Requirements

Privileged access to your system will be required.

Difficulty

EASY

Conventions

Gorilla Password safe application is not part of CentOS/Redhat 7 package repository and thus it needs to be installed manually on your Linux system. First, let's take care of the prerequisites. Here we assume that you have already enabled EPEL repository:
# yum install tcllib tk itcl git
In the next step we are going to clone a current Gorilla Password repository using git command:
$ cd /tmp/
$ git clone https://github.com/zdia/gorilla.git
Once we get Gorilla Password sources cloned locally we can copy them into a designated directory/opt:
# cp -r gorilla/sources/ /opt/gorilla

Objective

The objective of this article is to provide a getting started guide to Kickstart file creation on Redhat Linux.

Operating System and Software Versions

  • Operating System: - Redhat 7

Requirements

Privileged access to your Redhat Linux system may be required.

Difficulty

MEDIUM

Conventions

Objective

The following instruction will explain how to clone KVM-based Virtual Machines on Redhat Linux from command line using virt-clone command.

Operating System and Software Versions

  • Operating System: - Redhat 7.3
  • Software: - libvirtd (libvirt) 2.0.0

Requirements

Privileged access to your Redhat Linux installation will be required.

Difficulty

EASY

Conventions

Objective

The following instruction will explain how to completely remove KVM-based Virtual Machines on Redhat Linux from command line using virsh command.

Operating System and Software Versions

  • Operating System: - Redhat 7.3
  • Software: - libvirtd (libvirt) 2.0.0

Requirements

Privileged access to your Redhat Linux installation will be required.

Difficulty

EASY

Conventions

Objective

The objective is of this article is explain how to automatically start virtual machine using default Redhat's KVM based hyper-visor configuration.

Operating System and Software Versions

  • Operating System: - Redhat 7.3
  • Software: - libvirtd (libvirt) 2.0.0

Requirements

Privileged access to your Redhat Linux installation will be required.

Difficulty

EASY

Conventions

Objective

The default KVM virtual storage location is /var/lib/libvirt/images meaning, that any new virtual machines created via Virtual Machine Manager will be stored within this location. The objective of this guide is to configure another default KVM virtual storage directory location.

Operating System and Software Versions

  • Operating System: - Redhat 7.3
  • Software: - libvirtd (libvirt) 2.0.0

Requirements

Privileged access to your Redhat Linux installation is required.

Difficulty

EASY

Conventions

Objective

The following quick guide will help you setup Redhat Enterprise Linux server as a virtualization host using KVM.

Operating System and Software Versions

  • Operating System: - Red Hat 7

Requirements

Privileged access to RHEL installation will be required.

Difficulty

EASY

Conventions

Objective

The objective is to disable the default Apache (httpd) welcome page on Redhat Linux

Operating System and Software Versions

  • Operating System: - Red Hat Enterprise Linux Server 7.3 (Maipo)
  • Software: - Apache/2.4.6 (Red Hat Enterprise Linux)

Requirements

Privileged access to your RHEL server system will be required.

Difficulty

EASY

Conventions

Objective

The objective is to configure network Redhat package repository accessible via HTTP protocol. This guide uses Apache webserver as a means to provide HTTP access to the local package repository.

Operating System and Software Versions

  • Operating System: - Red Hat Enterprise Linux Server 7.3 (Maipo)
  • Software: - Apache/2.4.6 (Red Hat Enterprise Linux)

Requirements

Privileged access to your RHEL server system will be required.

Difficulty

EASY

Conventions

Objective

In case you have troubles with GUI RHEL installation, Redhat also offers text bases solution.

Operating System and Software Versions

  • Operating System: - Redhat Linux 7.3

Requirements

Redhat Linux bootable CD/DVD or USB media.

Difficulty

EASY

Conventions

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