Book Image

Hands-On Enterprise Automation on Linux

By : James Freeman
Book Image

Hands-On Enterprise Automation on Linux

By: James Freeman

Overview of this book

Automation is paramount if you want to run Linux in your enterprise effectively. It helps you minimize costs by reducing manual operations, ensuring compliance across data centers, and accelerating deployments for your cloud infrastructures. Complete with detailed explanations, practical examples, and self-assessment questions, this book will teach you how to manage your Linux estate and leverage Ansible to achieve effective levels of automation. You'll learn important concepts on standard operating environments that lend themselves to automation, and then build on this knowledge by applying Ansible to achieve standardization throughout your Linux environments. By the end of this Linux automation book, you'll be able to build, deploy, and manage an entire estate of Linux servers with higher reliability and lower overheads than ever before.
Table of Contents (23 chapters)
1
Section 1: Core Concepts
5
Section 2: Standardizing Your Linux Servers
10
Section 3: Day-to-Day Management
16
Section 4: Securing Your Linux Servers

Interpreting results

So far, we have seen that the OpenSCAP scans, especially the XCCDF-based ones, produce nice, easy-to-read reports that you can easily take action on. However, if the reports are not clear to you, then you would not know what needs fixing to rectify the lack of compliance.

Fortunately, both the OVAL policies we used earlier to check for vulnerable packages and the XCCDF-based reports contain enough information for you to do both things.

Let's take an example from our earlier scan of our CentOS 7 server using the SSG version 0.1.47. In this, we failed, among other things, a check called Disable ntpdate Service (ntpdate). Suppose that this result was not obvious to you, and you were unsure what the underlying problem was or why it was an issue. Fortunately, in the HTML report generated from this scan, you can click on the check title. A screen should pop...