I work in IT for 20 years.20 years experience in programming (C, C++, SQL, php, perl, shell)15 years experience with Unix/Linux sytems administration, development and integration(Linux, FreeBSD, apache, databases, monitoring, security, cryptography )12 years experience in network administration (DNS, routing protocols, development)7 years experience in VoIP - asterisk, a2billing I provide profesional and reliable services.