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In the late nineties, there was Y2K. Governments, businesses and individuals got scared big time. As a consequence, massive amounts of money were invested to prevent doomsday before it was too late. And it paid off. More than 10 years later, we can say the transition from the second to the third millennium was prettyRead more

The process of creating a distribution list and making it receive email from all senders (local and external) wasn’t a big deal in Exchange 2003. But things changed in Exchange 2007 and 2010, causing external senders to get this error: #< #5.7.1 SMTP; 550 5.7.1 RESOLVER.RST.AuthRequired; authentication required> By default, Exchange 2007 and 2010 allowRead more

(Worth Your Time series: Links, Information, Howtos, Todos, opinions, etc. that I have found interesting and I believe are worth your time to review. Please share with your colleagues if you think so.) 1. A brilliant talk from TED 2009, in which security expert Marcus Ranum explains how seemingly tiny errors in early protocol designRead more

In the first article, ‘How to use SSL/TLS to Secure Your Communications: The Basics‘, I wrote about what SSL/TLS was about.  In this new article, I will show you how to create and setup a certificate on IIS. Create a certificate request: 1.      Open IIS and right-click on Default Web Site or the name of theRead more

In the past few days, news has been soaring with a new episode of the Ceglia-Facebook-Zuckerberg saga. Are we at “Facebook: A New Hope “Ceglia Strikes Back“ The Return of The Facebook I’ve lost count. One count that is most definitely not lost, though, is Facebooks worth. Evaluated at $50 Billion and with over 600 millionRead more