Archive for March, 2009

Ruin Conficker’s plans with OpenDNS

According to some security experts, Conficker, will tomorrow, April 1, try to get in touch with one of the thousands of sites that supposedly will give it further instructions to continue his path of evil.

One of the best ways to prevent Conficker coming into contact with these sites, is to prevent the DNS server from resolving  the sites in question, which may seem a complicated task, but it is not.

OpenDNS, which is free, provides DNS servers that do not resolve the addresses requested by Conficker. All that is needed is to replace in your computer or network the DNS servers used for resolution of  Internet addresses. Warning! Do not change the DNS servers that resolve names internally!

In addition to preventing the Conficker “phone home” the OpenDNS allows you to see if you have any infected computer on your network through a state panel that it provides. In it, we can see how many sites were blocked and why.

Lista de domínios bloqueados

Lista de Domínios Bloqueados

But OpenDNS is much more that blocing Conficker. Its databases contain millions of sites divided into different categories that we can choose to banish from our network (or computer).This capability, coupled with its speed, availability and other small features OpenDNS makes an essential service and free … 🙂


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I finally managed to start working on my professional website / blog.
A major difficulty in starting this project was to choose the appropriate tool to do so. Joomla and  DotNukeNet were the firsts to caught my attention.

Joomla and  DotNukeNet are both CMSS (Content Management Systems) and although  Joomla is the most famous I incline more to DNN because it is in ASP.NET / SQL Server, an environment that I understand much better that the PHP / MySQL of Joomla.

However, they seemed both too complex for a simple project and I looked at WordPress for an easier alternative. WordPress is much more than an engine for blogs and extremely simple and quick to setup. So here I am with my first project in WordPress and the results are much more interesting than expected.

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