We have been into managing and deploying the data center operation including servers, networking (Cisco, Nortel,vyatta, mikrotik and juniper), VOIP Solutions using (Asterisk, switchvox, trixbox and freeswitch) and web hosting solutions.some of the projects handled by us include the following technologies:1. Storage solutions using opensource (GFS SAN)2. Backup solutions based on opensource (incld. setup of VTL's)3. IPsec peer to peer VPN setups of 30 sites.4. Management and deployment of routers and appliance based firewalls.5. User authenticated FTP Server setup on windows and Linux.6. Samba Server Setup with access control.7. Mail Server (Qmail, Postfix,sendmail, exchange) Setup and Administration.8. Cisco Firewall ASA(55xx) failover setup9. Vyatta Router setup for routing , firewall and VPN10. Asterisk, trixbox and freeswitch setup and customization.11. Windows 2k8 AD, Exchange, Clustering, and Hyper-V setup.12. Network/resource monitoring using open source nagios, opennms, cacti an