Category Archives: Recipes

Testing SPAM and Virus Filters

Posted on October 4, 2010 by Barry O'Donovan

I’ve recently performed a complete upgrade of Open Solutions’ mail servers and I’ve now moved onto doing likewise for one of our ISP customers with a lot of users. These retrofits include installing virus and SPAM filters to protect both … Continue reading →

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Asterisk SIP Brute Force Attacks on the Rise

Posted on September 17, 2010 by Barry O'Donovan

See my article on the company blog for a discussion on this, and a how to on using Fail2ban to help stop these attacks.

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HTTP Streaming with Encryption under Linux

Posted on August 30, 2010 by Barry O'Donovan

For a customer of Open Solutions, we need to mass encode thousands of video files and also segment and encrypt them for use with Apple’s HTTP Streaming. (using Amazon EC2 instances for the leg work). The one piece of the … Continue reading →

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Encoding Video for the HTC Desire

Posted on August 17, 2010 by Barry O'Donovan

A useful script to encode all files passed as parameters(s) for viewing on a HTC Desire. Continue reading →

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Encoding Full HD as FLV (for Gallery3)

Posted on August 17, 2010 by Barry O'Donovan

I have a full HD camcorder and I wanted to stick some good quality video on my gallery for relatives to view. So, I needed to convert my sample 100MB MP4 full HD file to a suitably sized FLV for the Gallery. Here’s what I did… Continue reading →

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