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 consultant to OpenBSD

Foreword by means of Henning Brauer, OpenBSD PF Developer

OpenBSD, the stylish, hugely safe Unix-like working procedure, is regularly occurring because the foundation for serious DNS servers, routers, firewalls, and extra. This long-awaited moment variation of Absolute OpenBSD keeps writer Michael Lucas's trademark simple and sensible method that readers have loved for years. You'll study the intricacies of the platform, the technical information at 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 assurance of OpenBSD's boot process, 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 speedy and powerful utilizing the ports and programs 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 install and improve methods on your community and undefined, or construct a customized OpenBSD release

Whether you're a brand new consumer trying to find an entire advent 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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Extra info for Absolute OpenBSD: UNIX for the Practical Paranoid (2nd Edition)

Example text

There isn’t one. The management is you. Many commercial operating systems conceal their inner workings, and the only access you get is through the programs, application programming interfaces (APIs), and application binary interfaces (ABIs) they provide. If you want to learn more about how your operating system works, you can’t (unless you reverse-engineer it). When something breaks, you either live with it or pay the vendor to solve the problem. OpenBSD, on the other hand, is completely open. You can view the source code, the compiler, and the resulting binaries.

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.

And that brings us to OpenBSD’s most wellknown claim to fame. Security OpenBSD strives to be the most secure operating system in the world. While it can reasonably make that claim today, maintaining that position requires constant effort. Intruders constantly try new ways to penetrate computers, which means that today’s feature might be tomorrow’s security problem. As OpenBSD developers learn of new classes of programming errors and security holes, they scan the entire source tree for that type of problem and make fixes before anyone even knows how these issues might be exploited.

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


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