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

By Michael W. Lucas

retail quality

The definitive advisor to OpenBSD

Foreword by way of Henning Brauer, OpenBSD PF Developer

OpenBSD, the stylish, hugely safe Unix-like working approach, is established 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 simple and sensible strategy that readers have loved for years. You'll examine the intricacies of the platform, the technical information at the back of sure 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 insurance 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 quickly and powerful utilizing the ports and programs system
* supply clients basically the entry they wish with teams, sudo, and chroots
* Configure OpenBSD's safe implementations of SNMP, DHCP, NTP, sensors, and more
* customise the install and improve approaches in 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 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 resources for Absolute OpenBSD: UNIX for the Practical Paranoid (2nd Edition)

Sample text

From reading the manual page (discussed in the next section), this common configuration seemed simple enough: Attach the cables, configure one machine to dump its console to the serial port, become root on the display machine, and enter tip tty00. The other machine’s console should have appeared in the terminal window, but that didn’t happen. ” It might have been an OpenBSD bug, a hardware failure, or a gap in my comprehension. Swapping systems around demonstrated that the command worked on other OpenBSD machines, just not my particular test box.

But you’re not free to bug the developers for features or support. Correctness Every skilled programmer knows that programs written correctly are more reliable, predictable, and secure. However, many free software producers are satisfied if their code compiles and simply seems to work, and quite a few commercial software companies don’t give their programmers time to write their code correctly. OpenBSD developers strive to implement solutions correctly. They make it a strict rule to write programs in a reliable and secure manner, following best current programming practices.

And if a contributor submits enough fixes of sufficient quality, he might be offered the role of committer. OpenBSD Committers Committers have write access to the main OpenBSD source code repository. They can make whatever changes they deem necessary for their OpenBSD projects, but are answerable to each other and to the project coordinator. Most committers are skilled programmers who work on OpenBSD during their own time. While being a committer seems glamorous, the role carries a lot of responsibility.

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