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

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 based, hugely safe Unix-like working approach, is typical because the foundation for severe DNS servers, routers, firewalls, and extra. This long-awaited moment variation of Absolute OpenBSD keeps writer Michael Lucas's trademark user-friendly and sensible process that readers have loved for years. You'll research the intricacies of the platform, the technical information at the back of yes 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, safety features like W^X and ProPolice, and complex networking techniques.

You'll find out how to:
* deal with community site visitors with VLANs, trunks, IPv6, and the PF packet filter
* Make software program administration fast and potent utilizing the ports and programs system
* supply clients purely 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 strategies in your community and undefined, or construct a customized OpenBSD release

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

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

-Theo de Raadt, OpenBSD Founder

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

Example text

In other words, you have the opportunity to understand OpenBSD in exquisite, excruciating detail. If you want to learn about OpenBSD, you must jump from eating what you’re served to reading the cookbook and creating your own meals. If you’re willing to learn using the information provided, you will develop skills, and you’ll probably even make some friends in the OpenBSD community along the way. If you want to use OpenBSD and don’t have the time or inclination to learn, invest in a commercial support contract.

When I throw out a question, some­ one knows the answer. I try to reward them by throwing out facts, tutori­ als, observations, and random ranting as well as questions. com/ for links to these and more. I considered dropping the haiku from this edition, but overwhelming reader feedback demanded that I not only retain them, but include more and better ones. As an experiment, I solicited haiku on my blog and used some in this book. Ludovic Simpson wrote the haiku for Chapter 7; Justin Sherrill, Chapter 12; and the relentless Josh Grosse, Chapters 1, 3, and 16.

For example, to see the man page for the standard network utility ping(8), enter this: $ man ping You’ll get something like this in response. PING(8) OpenBSD System Manager's Manual NAME ping - send ICMP ECHO_REQUEST packets to network hosts 4 Chapter 1 PING(8) SYNOPSIS ping [-DdEefLnqRrv] [-c count] [-I ifaddr] [-i wait] [-l preload] [-p pattern] [-s packetsize] [-T tos] [-t ttl] [-V rtable] [-w maxwait] host DESCRIPTION ping uses the ICMP protocol's mandatory ECHO_REQUEST datagram to elicit an ICMP ECHO_REPLY from a host or gateway.

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

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