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Passion for the Science of Computing

By on Dec 30, 2010 in Article

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 many issues in the teaching of Computer Science and how we index our knowledge. It also provides solutions to so many frustrations I felt while working my way through the undergraduate Computer Science curriculum at the University of Akron.

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Systems Administrator’s Lab: OpenSSH MaxStartups

By on Dec 28, 2010 in Article

Background 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 the problem, how...

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Scripting & Automation: The Qualitative to Quantitative Workflow

By on May 14, 2010 in Article

Background Scripting & Automation has been a goal since the beginning of Unix and, let me state, that I believe that it is possible to achieve a Fully Automated Provisioning system in our production environments. In fact, I think it is essential that we develop fully automated provisioning systems to keep up with the rate of change that business demands these...

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