Monthly Archives: February 2009

Minimizing downtime when copying a Xen image

By cesar | Published: February 25, 2009

Recently we moved Rapleaf’s servers to a new Co-Location facility.  For this we had to move a couple of VMs containing core services to the a new Xen hypervisor in the new facility. One of these VMs is a critical service that many other services depend on therefore, it was critical to minimize downtime. The [...]

Posted in Xen | 10 Comments

ruby and mcrypt

By eric | Published: February 19, 2009

Usually there’s little reason to use mcrypt with ruby. Ruby’s standard OpenSSL library should cover just about all of one’s encryption/decryption needs. But recently we did need mcrypt to help us debug an encryption problem with a partner. Specifically they were encrypting with mcrypt on php and we were having trouble decrypting it. There’s very [...]

Posted in encryption, mcrypt, Ruby, Security | 1 Comment

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