Linux: System Administration and Practical Management Guidelines

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Making Day-to-Day Administration and Maintenance a BreezeSystem administration is an aspect of Linux that is unavoidable. Even with the emergence of user friendly distributions like Ubuntu and Mint, a significant amount of user configuration is still required to keep a Linux system running on a daily basis. This book has been created to guide you through most scenarios you will encounter, whether you're new to system administration or have been maintaining systems for years.

In this book we take a detailed look at managing users and groups, we look at how to create a more secure system that will be less vulnerable to threats, as well as delving into the various aspects of managing filesystems and storage partitions. We also address specific topics such as working with hard and soft links, getting the most out of text processing, package management and architecture, utilizing shared libraries, manipulating processes for system optimization, as well as other essential topics every proficient Linux user and administrator needs to know.

What This Book OffersDetailed Practical Examples
Throughout the entire guide we provide practical examples with command line snippets and system screenshots to demonstrate how the aspects we discuss are applied on a real system. For complicated topics we also include step-by-step examples to guide you through a process every step of the way.

Dissected Commands
Command line instructions are broken down into their basic commands, with each component explained in detail, making learning easy and much more manageable. We also look at the various options and switches available for each command, along with accompanying examples.

Referenced GUI Tools
Graphical tools can make administering a Linux system much more enjoyable and hassle free. As such, we provide references to our recommended GUI options for many administrative functions, where available.

Key Topics

1. The Linux Boot Process
• Startup and Boot Order
• Alternative Boot Loaders
• Reviewing the Boot Process
• Commands to Restart and Stop the System
2. Hardware Management
• Hardware Detection
• Using the /proc Filesystem
• Command Line Tools
• Graphical Tools
3. Shared Libraries
• Naming Conventions
• Identifying Referenced Libraries using ldd
• Identifying Referenced Libraries using objdump
4. User and Group Management
• Storage of User and Group Data
• User and Group Commands
5. Filesystems
• Types of Commonly Used Filesystems
• Filesystem Commands
6. Disk Storage Management
• Naming the Devices
• Primary, Extended, and Logical Partitions
• udev and df
• Mounting a Filesystem
• Unmounting a Filesystem
• Automating Mount Points
• Setting up New Partitions
7. Working with Links
• Hard Links
• Soft Links
8. d104 Processing
• d104 Processing Commands
• Combining Commands
9. Package Management
• Understanding Package Architecture
• Day-to-Day Administration Tasks
10. Log Files
• Important Log Files
• Essential Commands & Graphical Tools
11. Process Management
• Working with Processes
12. System and Network Security
• Open Ports
• Local and Remote Users
• Restricting Remote Access
• Unused Software

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