Objective

The objective is to install Python 3 on CentOS 7 with Software Collections (SCL).

Operating System and Software Versions

  • Operating System: - CentOS 7 or higher

Requirements

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

Difficulty

EASY

Conventions

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

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