Linux System Administration
Over 10 years experience as Linux administrator .
Configured and maintained hundreds of servers having different tasks : web server (Apache/Nginx+php/ruby/perl), mail server (with AV and spamassassin), file server, mysql/postgresql, dns, IM server, VOIP, firewall/VPN.
As a network administrator in a small WISP i built my skills up in wireless, routing/BGP, routers/swithes/firewalls, network monitoring/troubleshooting.
I write my own scripts (shell/Perl) .
Also i have limited experience in programming, mostly Php and C.