 To make life easier, Chapter 1 presents a general picture of what is inside a Unix kernel and how Linux competes against other well-known Unix systems.
The heart of any Unix kernel is memory management. Chapter 2 explains how Intel 80x86 processors include special circuits to address data in memory and how Linux exploits them.
Processes are a fundamental abstraction offered by Linux and are introduced in Chapter 3. Here we also explain how each process runs either in an unprivileged User Mode or in a privileged Kernel Mode. |
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Read more about this free ebooks:Understanding the Linux Kernel - O'Reilly
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 Chapter 1, Requirements for a Linux System Administrator
Lays out the goals of the book and what you’ll gain by reading it.
Chapter 2, Setting Up a Linux Multifunction Server
Gets you started with a nearly Internet-ready server.
Chapter 3, The Domain Name System
Shows you the basics of setting up primary and secondary DNS servers.
Chapter 4, An Initial Internet-Ready Environment
Uses the ISPConfig free software configuration system to get you started with a rich set |
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Read more about this free ebooks:Linux System Administration - O’Reilly
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 Chapter 1 is a brief introduction to networking concepts. It covers the OSI and TCP/IP networking models with explanations of their layers, TCP and UDP as Layer 4 protocols, and then rounds off the chapter with a discussion on IP addresses, Subnetting, and Supernetting.
Chapter 2 discusses possible security threats and vulnerabilities found at each of the OSI layers. The goal here is to understand where and how these threats can affect us and to stay protected from attackers. It then rounds off the discussion by sketching out the basic steps required to protect the services that run on our system.
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Read more about this free ebooks:Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT, and L7-filter
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 We start in Chapter 1 with some history and background, and set MIPS in context by discussing the technological concerns and ideas thatwere uppermost in the minds of its inventors. Then in Chapter 2 we discuss the characteristics of the MIPS machine language that follow from their approach.
To help you see the big picture, we leave out the details of processor control until Chapter 3, which introduces the ugly but eminently practical system that allows MIPS CPUs to deal with their caches, exceptions and startup, and memory management. Those last three topics, respectively, become the subjects of Chapters 4 through 6.
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Read more about this free ebooks:Morgan Kaufmann See MIPS Run 2nd Edition - Linux
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 Whether you’re a systems administrator or a home user, you need to understand how Linux internals work before you can really master Linux—how it boots, how networking works, how to customize the kernel, and even what hardware to buy.
How Linux Works contains the kind of information normally handed down from wizards—knowledge that comes from years of experience doing things the hard way. But instead of seeking the right incantation to make your system work, you can read How Linux Works to see how to administer Linux and why each particular technique works. |
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Read more about this free ebooks:How Linux Works: What Every Super-User Should Know
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Operating System