Mr. A.SIVAKUMAR

Having 16+ years of hands on experience in IT industry including 14+ years of extensive experience in SYSTEM/NETWORK ADMINISTRATION. I have experienced in designing, configuring, maintaining and troubleshooting of Windows NT, Windows 2000, Windows 2003, Windows 2008 , Windows 2012, Windows 2016, Windows 2019,UNIX and Red hat Linux based LANs and WANs consisting of CISCO ROUTERS, CATALYST SWITCHES and Hubs with good knowledge of TCP/IP suite of protocols such as TCP, IP, VOIP, SMTP, POP3, IMAP, FTP, DNS, SNMP, UDP etc. Having good experience in Microsoft Back office products like Exchange, IIS, Proxy, ISA servers.