Book Image

Linux for System Administrators

By : Viorel Rudareanu, Daniil Baturin
Book Image

Linux for System Administrators

By: Viorel Rudareanu, Daniil Baturin

Overview of this book

Linux system administration is an essential aspect of maintaining and managing Linux servers within an organization. The role of a Linux system administrator is pivotal in ensuring the smooth functioning and security of these servers, making it a critical job function for any company that relies on Linux infrastructure. This book is a comprehensive guide designed to help you build a solid foundation in Linux system administration. It takes you from the fundamentals of Linux to more advanced topics, encompassing key areas such as Linux system installation, managing user accounts and filesystems, networking fundamentals, and Linux security techniques. Additionally, the book delves into the automation of applications and infrastructure using Chef, enabling you to streamline and optimize your operations. For both newcomers getting started with Linux and professionals looking to enhance their skills, this book is an invaluable hands-on guide with a structured approach and concise explanations that make it an effective resource for quickly acquiring and reinforcing Linux system administration skills. With the help of this Linux book, you’ll be able to navigate the world of Linux administration confidently to meet the demands of your role.
Table of Contents (21 chapters)
Part 1: Linux Basics
Part 2: Configuring and Modifying Linux Systems
Part 3: Linux as a Part of a Larger System

High performance

XFS provides high performance by effectively managing disk space.

Within the allocation groups, B+ trees manage free space and inodes. The effectiveness and scalability of XFS are considerably enhanced by the usage of B+ trees. XFS manages allocation in a delayed manner by dividing the allocation procedure into two steps. Pending transactions are kept in the RAM and the necessary amount of space is set aside. The precise location (in filesystem blocks) of the data’s storage is still left up to XFS. This choice is postponed until the very last second. If it is outdated when XFS selects where to save it, certain short-lived temporary data may never reach the disk. XFS improves write performance and lessens filesystem fragmentation in this way. Data loss after a crash during a write operation is likely to be more severe in a delayed-allocation filesystem than in other filesystems.

What filesystem does my system use?

If you aren’t sure which filesystem...