As part of a larger project I needed to generate real time radius records from the CDR accounting files of several cluster pairs of Broadsoft application servers. So I wrote a perl script to do just that. It maps the CDR fields to radius attribs and encodes the accounting packet using the Net::Radius::Packet CPAN module. [...]
Browsing Posts in Computing and Tech
What I Do – Broadsoft CDR Files to Radius Accounting Records
February 2, 2012
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Unraveling the Duct Tape
January 21, 2012
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I’ve written before about the world being held together by duct tape… and it seems there are more people lately who have decided to rip off the covers and go looking for some duct tape. The latest headline comes from the world of SCADA systems. Researchers Lay Bare Woeful SCADA Security. SCADA systems are small [...]
What I do – Dynamic Daily Table Partitions With Postgres
January 19, 2012
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As part of a new and fairly large project I have a need to partition a few postgres tables and have a rolling daily window. That is.. I want to organize data by a timestamp storing each day in its own partition and maintain 90 days of historical data. Doing this is possible in Postgresql [...]
OSX Mail App Using Tons of Memory and CPU?
January 7, 2012
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I’ve been using a mac for a while now and I recently decided to dump Entourage and go to using the native Mail.app. I noticed a problem though.. within minutes of starting up it would consume several hundred megs of ram and have frequent CPU spikes of 80 to 100%. If Mail was left open, [...]
What I do – Interviewing for Linux Engineers
December 11, 2011
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Now and then I’m called on to help interview candidates for linux admin/engineer slots and as I’ve been doing some of that lately I thought I’d share the way I go about doing a technical interview. This approach seems to work equally well over the phone or in person. I’m big on understanding the fundamentals [...]
