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

By Michael W. Lucas

ISBN-10: 1593274769

ISBN-13: 9781593274764

retail quality

The definitive advisor to OpenBSD

Foreword by way of Henning Brauer, OpenBSD PF Developer

OpenBSD, the based, hugely safe Unix-like working approach, is established because the foundation for severe DNS servers, routers, firewalls, and extra. This long-awaited moment version of Absolute OpenBSD continues writer Michael Lucas's trademark trouble-free and functional strategy that readers have loved for years. You'll research the intricacies of the platform, the technical info in the back of yes layout judgements, and top practices, with bits of humor sprinkled all through. This version has been thoroughly up-to-date for OpenBSD 5.3, together with new assurance of OpenBSD's boot procedure, security measures 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 powerful utilizing the ports and programs system
* provide clients basically the entry they want with teams, sudo, and chroots
* Configure OpenBSD's safe implementations of SNMP, DHCP, NTP, sensors, and more
* customise the set up and improve techniques 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 provides you with every little thing you must grasp the intricacies of the world's safest working system.

"The definitive booklet 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)

Sample text

Others really go wild and offer a grammatically incorrect and technically vague manual page. The OpenBSD community expects the documentation to be both complete and accurate. The manual pages for system and library calls are extensive, even when compared to other BSDs, and include discussions on usage and security. Documentation errors are considered serious bugs, and are treated as harshly as any other serious bug. This might sound extreme, but in its own internal audits, the OpenBSD team has found any number of instances xxxvi Introduction where programmers used a library interface exactly as recommended in the manual page, but errors in the manual page made the usage dangerous or insecure.

I assume you’re familiar with basic commands, such as tail(1), chmod(1), ping(8), and so on, and that you know why each command in this list includes a number in parentheses after the name. We’ll discuss many programs that you might already be familiar with, but that might be slightly different in OpenBSD. xl Introduction For maximum benefit, you should install OpenBSD on a dedicated machine. OpenBSD can coexist with other operating systems or run in a virtual machine, but if you’re going to use OpenBSD in a production environment, you should run it on its own.

This might seem contradictory, but in truth, it means that the person running the computer didn’t understand computer security. OpenBSD has many integrated security features, but you cannot assume that these features secure everything running on the system. That’s just not possible. No operating system can defend itself against operator error. An operating system can protect itself from software problems to a limited extent, but ultimately, the responsibility for security is the administrator’s.

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

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