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This is an updated guide on how to build and install Eucalyptus 3.3.0 on Ubuntu 13.04. I have tested these steps on a freshly installed & updated Ubuntu 13.04 machine on Sunday, July 21st, 2013. There is another guide here for Eucalyptus 3.2 and Ubuntu 12.04. :) Prerequisites A Linux-capable machine with virtualization extensions Spac...

Recently, I’ve been spending my time up in the clouds (i.e. sunt cu capul in nori) messing around with Eucalyptus. Eucalyptus is an open-source cloud platform. In my experience, this means that you can download it from GitHub, compile it and then torture yourself trying to get it to run :) Here, I am presenting a short guide on building, instal...

I’ve been using OpenSSL a LOT for work lately and I’ve learned some interesting stuff. Here’s a quick guide on how to encrypt and decrypt files using AES in CBC or CTR mode using 256 bit keys and 128 bits IVs. To do this, I used the EVP API in OpenSSL, which allows you to easily encrypt a file using any cipher of your liking. I am assuming so...