By Michael W. Lucas

ISBN-10: 1593274769

ISBN-13: 9781593274764

retail quality

The definitive advisor to OpenBSD

Foreword via Henning Brauer, OpenBSD PF Developer

OpenBSD, the dependent, hugely safe Unix-like working approach, is universal because the foundation for serious DNS servers, routers, firewalls, and extra. This long-awaited moment version of Absolute OpenBSD keeps writer Michael Lucas's trademark common and useful procedure that readers have loved for years. You'll study the intricacies of the platform, the technical info at the back of convinced 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 speedy and potent utilizing the ports and applications system
* supply clients in simple terms the entry they wish with teams, sudo, and chroots
* Configure OpenBSD's safe implementations of SNMP, DHCP, NTP, sensors, and more
* customise the set up and improve tactics to your community and undefined, or construct a customized OpenBSD release

Whether you're a brand new person searching for an entire advent to OpenBSD or an skilled sysadmin trying to find 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 publication on OpenBSD will get a long-overdue refresh."

-Theo de Raadt, OpenBSD Founder

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

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Org/. com/majordomo/). org. html. This includes lists in languages other than English. One unofficial list, run by an OpenBSD developer, is the PF mailing list, for users of the OpenBSD packet filter. This list is for all PF packet filter users, not only OpenBSD, but OpenBSD users dominate the list. If you want to learn more about PF, subscribe to this list. cx/. org looks like the mailing list for you, and you subscribe. If you race ahead and ask all your questions, you’ll immediately accomplish a couple things: You’ll alienate the community, and you’ll be told to shut up and go away; you certainly won’t make friends.

No one book can possibly contain everything there is to know about OpenBSD. UNIX is pushing 40 years old, and BSD operating systems have been around for more than 30 years. OpenBSD itself is over 15 years old, and is built on decades of tradition, knowledge, and community development. You won’t master it with any single book. You might master it with a room full of books and a few years of study, if you stop wasting time on trivialities like having a family and avoiding scurvy. The OpenBSD community maintains a wide variety of information sources.

That intruder should not change the shipping address on an order, making your staff ship a crate of really expensive stuff to an abandoned warehouse in Detroit. Availability This means that the system keeps running. If your business depends on your website, losing the website means losing business. Someone who can take your website down can starve your company. And all kinds of people are willing to shut you down, either to compete or just for laughs. Having been a system administrator for longer than some of you have been alive, I have a less formal idea of security.

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

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