I'm experienced in: UNIX administration (Linux, FreeBSD), services: Web, DNS, Mail, VPN, FTP, FireWall, Proxy, etc. VoIP (Asterisk, Digium) system developing/administration. Cisco (Routing & Switching, VoIP, Security). Disagreement: If you will be dissatisfied by my work I will allow you to charge back money from escrow without any problem.