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 stylish, hugely safe Unix-like working approach, is time-honored because the foundation for severe DNS servers, routers, firewalls, and extra. This long-awaited moment version of Absolute OpenBSD keeps writer Michael Lucas's trademark simple and sensible process that readers have loved for years. You'll study the intricacies of the platform, the technical information in the back of definite 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 method, security measures like W^X and ProPolice, and complicated 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 applications 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 deploy and improve procedures to your community and undefined, or construct a customized OpenBSD release

Whether you're a brand new consumer trying to find an entire creation to OpenBSD or an skilled sysadmin searching for a refresher, Absolute OpenBSD, 2d Edition provide you with every thing you want to 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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Additional resources for Absolute OpenBSD: UNIX for the Practical Paranoid (2nd Edition)

Example text

AT&T took parts of the BSD Unix distribution and integrated them with official UNIX, and then relicensed the results back to the universities that provided those improvements. This worked well for everyone until the US government broke up AT&T, and the resulting companies were permitted to compete in the computer software business. AT&T had one particularly valuable software property: a high-end operating system that had been extensively debugged by thousands of people and had powerful features, such as a variety of small but mighty commands, a modern filesystem, job control, and TCP/IP.

New features are added only once they meet the team’s code and documentation standards. Even if new software is added before it is feature-complete, it is expected to have full documentation and correct code. Introduction xxxiii The OpenBSD Community OpenBSD is more than just a collection of bits. It’s a community of users, developers, and contributors, with a single central dictator—er, coordinator. And this community can be a bit of a shock for anyone who doesn’t know what to expect. How can individuals scattered all over the world create, maintain, and develop an operating system, let alone build a community?

For example, systems must support IPv6 in the very near future, and I suspect that decades-old hardware will struggle to keep up. OpenBSD cannot turn back the clock, but it will leave every scrap of computing power possible for your applications. And after all, that’s what’s important—people use applications, not operating systems. This focus on performance means that a system running OpenBSD with a 1GB disk and a 486 CPU can still support real applications, such as a DNS or web server. Documentation Many free software projects are satisfied when they release code.

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

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