I'm a Unix/Linux system administrator. I can install/configure/troubleshoot any product in your environment. I'm also familiar in virtualization and VoIP technologies. ( 10 years of total experience ) OS: Linux Distros: RedHat/Debian/Novell(SuSe) ( CentOS,Fedora,CoreOS,ClearOS,Ubuntu,RHEL,SLES & etc... including Gentoo) Servers/Services: Mail Server: Postfix/Dovecot/SpamAssassin/Amavisd ( Including suites e.g Zimbra,SOGo,iRedMail,OpenXchange,MS Exchange, Kolab & etc...) Web Server: Apache,Nginx,Lighttpd,LiteSpeed/OpenLiteSpeed ( +LSCache ),G-WAN Database Server: MySQL,MSSQL,PostgreSQL,MongoDB,Oracle 10g Control Panels: CentOS Web Panel,cPanel/WHM,ISPConfig,CyberPanel & etc... Virtualization: VMWare ( ESXi,vCenter,HA ),Proxmox VE,OpenVZ,XenServer VoIP: Asterisk,FreePBX,Elastix,Issabel,CallManager