This tutorial provides guidance on best practices and configuration of OpenSSH/Keychain, but also includes some important troubleshooting techniques for which documentation is somewhat lacking. These techniques took me several years to develop and I have tried to compile them here in one concise post so that others do not have to suffer through the arduous…
I recently read an article called “Computer. Science. Paradox?” by Ben Rockwood which pointed me to a phenomenal project called “Great Principles of Computing.” The project’s founding principle is that Computing, not Computers are the center of our study and that the Science of Computing is, indeed, a natural science. This project touches on so…
When performing automation using OpenSSH/Cron you will inevitably run into concurrency problems. Recently, we had a problem where one machine was receiving 21 ssh connection within one second. This is because the standard cron daemon only has a granularity of one minute. In this article, I am going to quickly elaborate on how we spotted…
Recently, I had the chance to work on a couple of projects that took me into the cloud. The first project had me setting up Eucalyptus on KVM. The second had me building out an infrastructure in Rackspace Cloud Servers. This has given me some hands on insight into the problems that are facing those…
The current issue of “Communications of the ACM” has a write-up from the HCI team at IBM Research, Almaden, San Jose CA that has been studying sysadmins in their natural environment. If you missed their presentation at LISA, catch it here: http://cacm.acm.org/magazines/2011/1/103203-collaboration-in-system-administration/fulltext They mention, “Incorrect or incomplete understanding of highly complex systems is a common…
I’m thrilled to announce that Philip Kizer, the president of LOPSA, has agreed to present the keynote! He will be speaking on the future of system administration – and how we can work to make sure that future is the one we want it to be. The keynote will be the first session in both…
I’ve been collecting information about all the places that our members are blogging, and I’m seeing an amazing amount of excellent content.
While LOPSA’s roots are in the UNIX/Linux community, many of our members are also responsible for Windows and other platforms. One aspect of being multi-platform people is knowing how to do the same kinds of tasks on all the various platforms.
Here’s a great blog where the authors take an important task, and then have UNIX and Windows experts demonstrate how to perform this task on that various platforms.
Enjoy!
http://blog.commandlinekungfu.com/
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Had a great presentation on illumos (www.illumos.org) from the project head last night at the Unix Users Association of Southern California, Los Angeles chapter meeting (www.uuasc.org). Several top Solaris developers have created, from Oracles’s last CDDL release of OpenSolaris (and these releases have stopped, there’s no more OpenSolaris), an open-source fork of Solaris. They’ve filled…
I’ve posted my interview with Maciej at my new blog: An interview with Maciej Ceglowski of Pinboard I heard about the hypergrowth that Pinboard experienced due to the mass migration of users from Delicious, and wanted to get his perspective on how he had managed the huge spike in traffic and new users, and to find…
Note to future conference chairs: December 31st may sound like a fantastic and obvious deadline. Don’t do it. Everyone is incredibly busy the last two weeks of the year and no one has time to think about a submission. Pick a time when people are free to ponder, something open like, oh, say, Sunday the…