Starting from 2012, LCA (Laboratory of Applied Cryptography) and LAS (Laboratory of Systems Administration and Security) merged
into the Laboratory of Security and Cryptography (LASCA).


Between April 2007 and August 2010 I worked as Linux System Administrator and was responsible for managing and maintaining the network and
systems infrastructure for both the Itautec and LAS laboratories, both based in the UNICAMP Campus in Campinas, SP, Brazil.

For many years LAS was a mirror for many different Linux Distros. It used to be an official mirror for the Fedora Project, Gentoo and Ubuntu.

The Itautec Laboratory hosted the GNU/Linux Librix distro, that was developed in a partnership between LAS and Itautec and
was shipped with some models of laptops from Itautec.

Both the Itautec Lab and LAS shared the same basic underlying infrastructure even though the labs were located in different
locations inside the Campus.
The Itautec Lab was somewhat dependent from LAS: the LDAP users database and NFS servers were hosted at LAS.

During the years I've worked as System Administrator I had the chance to install and manage the following services:

* postfix
* zebra
* djbdns
* apache
* ftp
* ssh
* iptables
* NFS/Samba/AutoFS
* cups
* mysql
* openvpn
* squid

I have also created and installed many automation scripts (mostly Bash Scripts), including the backup system for both laboratories.

Besides the daily SysAdmin work, I was also responsible for:

* Reorganizing the LDAP group hierarchy, making it possible to allow/disallow logins from different groups using the appropriate PAM modules;
* Installling an internal Bugzilla to help organize and prioritize the many different tasks that SysAdmins were assigned for;
* Rewriting the firewall rules, making them more detailed and less restrictive;
* Assembling, installing and configuring a Virtual Machines server, used for testing the Librix distro;
* Assembling, installing and configuring of two compilation servers for the Librix distro;
* Creating and maintaining the RAID5+LVM expansions used for hosting the different Linux mirrors;
* Documenting all the routines and administrative works I've done in all the years I've worked there inside an internal Wiki;