How Linux Works

Unlike some operating systems, Linux doesn't try to hide the important bits from you — it gives you full control of your computer. But to truly master Linux, you need to understand its internals, like how the system boots, how networking works, and what the kernel actually does.

In this completely revised second edition of the perennial best seller How Linux Works, author Brian Ward makes the concepts behind Linux internals accessible to anyone curious about the inner workings of the operating system. Inside, you'll find the kind of knowledge that normally comes from years of experience doing things the hard way. You'll learn:

How Linux boots, from boot loaders to init implementations (systemd, Upstart, and System V)
How the kernel manages devices, device drivers, and processes
How networking, interfaces, firewalls, and servers work
How development tools work and relate to shared libraries
How to write effective shell scripts

You'll also explore the kernel and examine key system tasks inside user space, including system calls, input and output, and filesystems. With its combination of background, theory, real-world examples, and patient explanations, How Linux Works will teach you what you need to know to solve pesky problems and take control of your operating system.

A reader says,"I am dinosaur with close to 40 yrs IT experience, working on mainframe, midrange and Wintel. I bought my first PC in 1986 because I saw it was the future. I have been toying with Linux for a number of years and managed to work my way past a couple of issues on my own, especially nVidia graphics cards. Now that I am retired, decided to get serious with Linux rather than go forward with yet another Windows version than won't run my older applications and peripherals. I was struggling with Linux on where things were located⁄kept and how the OS works from a conceptual perspective. This book answered all my questions. It continues to be a good reference for me. It was money well spent. Because, in part, of this book, my new Linux server and desktop are now up and running the way I want them.

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