Get Absolute OpenBSD: UNIX for the Practical Paranoid (2nd PDF

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By Michael W. Lucas

ISBN-10: 1593274769

ISBN-13: 9781593274764

retail quality

The definitive consultant to OpenBSD

Foreword by way of Henning Brauer, OpenBSD PF Developer

OpenBSD, the dependent, hugely safe Unix-like working method, is regularly occurring because the foundation for serious DNS servers, routers, firewalls, and extra. This long-awaited moment variation of Absolute OpenBSD continues writer Michael Lucas's trademark effortless and useful procedure that readers have loved for years. You'll research the intricacies of the platform, the technical info in the back of definite layout judgements, and top practices, with bits of humor sprinkled all through. This variation has been thoroughly up to date for OpenBSD 5.3, together with new insurance of OpenBSD's boot procedure, security measures like W^X and ProPolice, and complicated networking techniques.

You'll learn the way to:
* deal with community site visitors with VLANs, trunks, IPv6, and the PF packet filter
* Make software program administration quickly and powerful utilizing the ports and programs system
* provide clients simply the entry they want with teams, sudo, and chroots
* Configure OpenBSD's safe implementations of SNMP, DHCP, NTP, sensors, and more
* customise the install and improve procedures to your community and undefined, or construct a customized OpenBSD release

Whether you're a brand new consumer trying to find a whole advent to OpenBSD or an skilled sysadmin searching for a refresher, Absolute OpenBSD, 2d Edition offers you every thing you want to grasp the intricacies of the world's safest working system.

"The definitive e-book on OpenBSD will get a long-overdue refresh."

-Theo de Raadt, OpenBSD Founder

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Extra info for Absolute OpenBSD: UNIX for the Practical Paranoid (2nd Edition)

Example text

Most problems arise from their own understanding, or lack thereof. When a program behaves unexpectedly, the problem is usually a gap in your expectations or understanding, and the OpenBSD community expects 1. Yes, the first chapter in this book is about getting help outside the book. I am aware of the irony; you don’t need to tell me. 2 Chapter 1 that you will work to improve your own knowledge so that you can make the system meet your needs. Other people make OpenBSD work correctly, and you can, too.

The OpenBSD community generally expects newcomers to be advanced computer users. The members have written extensive OpenBSD documentation, and expect newcomers to be willing to read it. They’re not interested in coddling new Unix users and, if pressed, will say so—often bluntly and forcefully. They will not hold your hand. They will not develop new features to please users. OpenBSD exists to meet the needs of the developers, and while others are welcome to ride along, the needs of the passengers do not steer the project.

D Set the Don't Fragment bit. You can learn more than you ever wanted to know about the lowly troubleshooting tool ping just by reading this document. If you need more information, look at the other man pages referenced by ping(8). Read enough pages, and you’ll develop an in-depth understanding of OpenBSD. Once you’re in a man page, pressing the spacebar or pgdn takes you forward one full screen. If you don’t want to go that far, press enter or the down arrow to scroll down one line. Typing B or pressing pgup takes you back one screen.

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Absolute OpenBSD: UNIX for the Practical Paranoid (2nd Edition) by Michael W. Lucas


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