Consulting on office information flow, management and security structure. Software & Hardware troubleshooting, administration of MS Windows NT4/2000/2003/2008R2/2012 Server/Microsoft Exchange, Lotus Notes/ Domino, SQL Server advising the staff in computer skills. Ethernet network installation, Network requirement analysis, configuration, and administration Network system designing, installation, configuration, and maintenance, Web server installation. CISCO routers administration. Untangle System administration, Kerio Firewall administration.