Book Review: Practical Computer Vision with SimpleCV By Kurt Demaagd, Anthony Oliver, Nathan Oostendorp, Katherine Scott

August 24, 2012 at 04:11 PM | categories: Book review | View Comments
"Practical Computer Vision with SimpleCV By Kurt Demaagd, Anthony Oliver, Nathan Oostendorp, Katherine Scott"; O'Reilly Media A practical guide to get you started in the field of computer vision, this book is pitched to a wide range of readers...
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Customizing PostgreSQL's psql sessions

August 24, 2012 at 07:30 AM | categories: Sysadmin, Tips | View Comments
PostgreSQL allows you to customize your psql session's using a configuration file "psqlrc". using a psqlrc file you can create shortcuts, change your prompt etc. The user specific psqlrc file is ~/.psqlrc When you work with several databases on...
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Iphone/Ipad/Mac OSX IPSEC VPN with Strongswan 5 on Centos/RHEL 6

August 23, 2012 at 10:21 AM | categories: Centos, Mac OS X, Howto, Sysadmin, RHEL, Linux, Tips, Security, IPSEC | View Comments
This howto describes setting up an IPSEC VPN for use with the Iphone, Ipad and Mac OSX VPN clients on Centos/RHEL 6. I am using the 5.x branch of Strongswan which is now the mainline actively maintained branch. At...
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Fix Bind error (broken trust chain) resolving

August 22, 2012 at 08:21 PM | categories: Tips, RHEL, Centos, DNS, Linux | View Comments
This Bind named issue results in queries failing and log messages such as the following being logged error (no valid KEY) resolving 'dlv.isc.org/DNSKEY/IN': 156.154.101.23#53 error (broken trust chain) resolving './NS/IN': 193.0.14.129#53 The issue is caused by the date on...
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Book Review: Intermediate Perl, 2nd Edition By Brian d Foy, Tom Phoenix, Randal L. Schwartz

August 16, 2012 at 07:07 AM | categories: Book review | View Comments
"Intermediate Perl, 2nd Edition By Brian d Foy, Tom Phoenix, Randal L. Schwartz"; O'Reilly Media Written as the followup to the "Llama book" this book introduces more advanced concepts of the Perl programming language to take you from writing...
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Disable a ClamAV signature

August 10, 2012 at 07:30 AM | categories: Tips, Email | View Comments
There are cases when you need to disable a ClamAV signature for various reasons. To do this create a file with the extension ".ign2" in your ClamAV data directory with the name of the signature. cat > /var/lib/clamav/mb.ign2 << 'EOF'...
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Book Review: Postgresql up and running By Regina Obe, Leo Hsu

August 04, 2012 at 12:07 PM | categories: Book review | View Comments
"Postgresql up and running By Regina Obe, Leo Hsu"; O'Reilly Media A quick guide to the PostgreSQL Database for users with prior experience with other DBMS. The book sets out to highlight the interesting features in PostgreSQL not present...
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