Download e-book for kindle: Absolute OpenBSD: UNIX for the Practical Paranoid (2nd by Michael W. Lucas

By Michael W. Lucas

ISBN-10: 1593274769

ISBN-13: 9781593274764

retail quality

The definitive advisor to OpenBSD

Foreword through Henning Brauer, OpenBSD PF Developer

OpenBSD, the based, hugely safe Unix-like working process, is usual because the foundation for serious DNS servers, routers, firewalls, and extra. This long-awaited moment version of Absolute OpenBSD continues writer Michael Lucas's trademark undemanding and functional method 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 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 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 applications system
* provide clients in basic 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 approaches on 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 trying to find a refresher, Absolute OpenBSD, second Edition offers you every little 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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Extra resources for Absolute OpenBSD: UNIX for the Practical Paranoid (2nd Edition)

Example text

The web versions will let you compare two different man pages. org/) contains a lot of information—from administration, installation, and management to where to find hardware. The front page links you to a general discussion about OpenBSD’s goals and support, where you can get OpenBSD, available resources, and ways you can support OpenBSD. Project members keep the website updated. If you have an OpenBSD problem or question, check this website first. Getting Additional Help 7 Mirrors Many people across the world mirror the OpenBSD website.

Once it’s set up, it just works. And, of course, it’s secure, which you cannot underestimate on the Internet. Network Management OpenBSD makes an excellent firewall, bridge, or traffic shaper. You can use it to support intrusion detection software, web proxies, and traffic monitors. The integrated packet-filtering firewall and supporting software provides state-of-the-art network connection management and control, and can strip out many dangerous types of traffic before it reaches your servers.

You’re free to use it or not. As with any gift, you can do whatever you want with it. 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.

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

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