I'm fan of Unix-Like systems. I know some of their common commands and a little of their administration. A few years ago I used to install linux distributions like CentOS, Fedora, RHEL and Ubuntu and related distros. Indeed it was my working. Also I have used FreeBSD, NetBSD and OpeBSD though less frecuently the last two. I have studied mathematics and now I am doing a PhD. in Mathematics in the area of Algebraic Coding theory and Cryptography at the UAM (Universidad Autónoma Metropolitana) in Mexico.