SSH Mastery: A Very Welcome Addition to Any Unix User's Bookshelf

Contributed by pitrh on Sun Jan 22 18:18:22 2012 (GMT) from the crypted intartubes dept. The first paragraph of this book's afterword reads: “ "You now know more about SSH, OpenSSH and Putty than the vast majority of IT professionals! Congratulations". ” That claim will be true for any reader of SSH Mastery who has read the book up to that point and has incorporated at least some of the elements of the configurations it describes into their own environments. Read more...

Using OpenBSD VMs to teach Unix

Contributed by pitrh on Fri Jan 13 17:33:34 2012 (GMT) from the Talking loud and clear dept. In episode 208 of his bsdtalk podcast, Will Backman talks about how he uses OpenBSD virtual machines to aid in his teaching of a Unix course at the University of Maine, along with details of why he chose it and how it helps round-out his pupils' understanding of different Unixes. The podcast files (15min, 7MB) are available here: Ogg: http://cisx1.uma.maine.edu/~wbackman/bsdtalk/bsdtalk208.ogg , MP3: http://cisx1.uma.maine.edu/~wbackman/bsdtalk/bsdtalk208.mp3

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wiconfig - simplifies the configuration of wireless interfaces

Contributed by sean on Fri Jan 13 17:09:22 2012 (GMT) from the airborne packets dept. Daniel M wrote in about the wiconfig script that he wrote to handle moving a laptop between networks: So, I got tired of doing my little time saving workarounds every time I connected to a wireless network and decided to look for a solution. Several people have posted little wireless scripts here, to misc@ and minor modifications to help simplify and automate the configuration of wireless, but the scripts never seemed to go far enough. Read more...

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OpenBSD reaches 5.0!

Contributed by pitrh on Sat Nov 12 17:19:57 2011 (GMT) from the regular-as-clockwork dept. As several submitters wrote in to remind us, Following the regular 6-monthly schedule, OpenBSD 5.0 was released on 1 November and is available on CDs and online.

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Reports from EuroBSDcon 2011

Contributed by pitrh on Sat Nov 5 12:23:45 2011 (GMT) from the better late than never dept. Frédéric Perrin wrote in with this EuroBSDCon conference report: Back from EuroBSDcon 2011 that took place in the beginning of October in the Netherlands, I started to organise my notes, and finally published them. Topics that where covered include OpenBSD port to UltraSPARC T1 and T2 processors, by kettenis@; the Minix 3 architecture and how Minix was designed with reliability and security in mind by Herbert Bos; NPF: a new packet filter for NetBSD 6.0 by Zoltan Arnold Nagy, and others topics: storage, virtualisation, history of *BSD systems, etc. Slides for other OpenBSD talks given in EuroBSDcon (and in other conferences) are available on-line.

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A Week of OpenBSD Hacking In Slovenia: Developers Report From s2k11 (Part 3)

Contributed by pitrh on Fri Nov 4 10:09:22 2011 (GMT) from the roomful of puffies dept. For a few days in September (16th through 23rd), the Slovenian capital Ljubljana was also the World Capital of OpenBSD hacking, hosting the s2k11: General hackathon, with 25 developers participating. We asked each of the the developers to send us a short summary of what happened at s2k11 as soon as they'd caught up on sleep, and several of them obliged quickly. We published a small selection in Part 1 and Part 2 of this series, here we present the third and final installment, with insights into the development process and previews of features that may soon appear in -current and snapshots before they make it into an upcoming release. Read more...

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Slovenian interview with Theo

Contributed by mitja on Tue Oct 18 06:00:00 2011 (GMT) from the babelfish-is-out-swimming dept. The main Slovenian daily newspaper Delo has published their interview with Theo which they did during s2k11. For those Undeadly readers that do not understand Slovenian, we've approached Delo to ask them for permission to translate and publish their article. Even though the interview was targeted at general public, it offers a valuable insight on some less technical aspects of OpenBSD. Read more...

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A Week of OpenBSD Hacking In Slovenia: Developers Report From s2k11 (Part 2)

Contributed by pitrh on Mon Oct 17 06:00:00 2011 (GMT) from the roomful of puffies dept. For a few days in September (16th through 23rd), the Slovenian capital Ljubljana was also the World Capital of OpenBSD hacking, hosting the s2k11: General hackathon, with 25 developers participating. We asked each of the the developers to send us a short summary of what happened at s2k11 as soon as they'd caught up on sleep, and several of them obliged quickly. We published a small selection in Part 1 of this series, here we present the second installment, with insights into the development process and previews of features that may soon appear in -current and snapshots before they make it into an upcoming release. Read more...

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OpenBSD 4.9 Latency and Throughput testing

Contributed by pitrh on Fri Oct 14 04:53:13 2011 (GMT) from the filling-the-tubes dept. Andrew Fresh wrote in to tell us about his recent work in measuring key performance data for OpenBSD 4.9 using professional-grade testing equipment. Andrew writes, “ I have been working to build a new router for a customer and have had access to a pair of Spirent SmartBits SMB-600 with gigabit interfaces. This gave me the opportunity to do some testing. The machines available are Dell PowerEdge 860's with "80557,Xeon 3000 Conroe,3060,LGA775,Burn 2" processors. I tested with the onboard bge interfaces and thanks to Dave some em NICs as well. The testing shows that with a single processor kernel for any average packet size above 767 bytes you can easily saturate a gigabit network interface forwarding packets. I was able to achieve close to 300k pps in any configuration I tested. Surprisingly with small packet sizes, amd64 did slightly better than i386 achieving a maximum of of 347,812 pps with an em NIC. Until the interface was saturated, latency remained low at less than 500 microseconds. ” For more details and pictures, see the full post.

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