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VirtualBox on the ‘Rocks’

Wednesday, October 5th, 2011

Rocks is an OS + tools clustering solution that requires front-end and compute nodes with ~1GB of RAM and 30GB of disk.  I decided to give Rocks a whirl using VirtualBox – no real need but it does provide an opportunity to explore some current HPC/clustering solutions. ** Since this post is my reaction to Continue reading →

Linux GeoIP Firewall via iptables (xtables-addons)

Tuesday, September 13th, 2011

Getting xtables-addons  with GeoIP working under Fedora (Red Hat) Linux was a bit of a hassle…  Note – xtables-addons is NOT standard (yet) for Linux iptables; it is considered to be experimental so installing it on a production system may not be appropriate.  I  hope that the GeoIP addon will soon become a standard feature. Continue reading →

Is Google-Bot gamed?

Thursday, March 17th, 2011

Is Google-Bot gamed?** Is web-SPAM a ‘bot’ problem, an ‘indexing problem’, a content provider problem, or a user problem? NOTE – this is probably a problem for any search engine – it just so happens that a Google-bot log entry caught my eye in this instance… Imagine your doctor NOT treating you for a diagnosed Continue reading →

How ‘secure’ is ‘secure enough’?

Monday, December 6th, 2010

How secure is secure enough?  With yet another round of Wiki-Leaks releases of sensitive US government documents you might be wondering: who is providing these sensitive documents? (aka, ‘the leak’, ‘the spy’, ‘the hacker’, ???) why would they release sensitive documents? (reverse espionage? or espionage subterfuge? some pervertedlogic?) is this a real problem? (yes – Continue reading →

Where has your computer been today? Out for a bit of International travel?

Monday, November 1st, 2010

Well, at least there is a good chance that YOUR computer/smart phone is an International traveller – your IP trail traverses  the globe 24x7x365 (or for however long you are on-line.)  You may have brought some foreign bytes home…  So, where has your computer/smart phone been today? Is this good or bad?  Hmm.  I started Continue reading →

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