Administration of Postfix mail server by using Php Myadmin. Administration of SVN, Bugzilla and VPN (open vpn) server. Administration of VMware workstation, KVM hosted in red hat server. Administrating Samba, NFS, FTP, DNS and Firewall in centos. Managing Raid and LVM with Linux Vendor management for the internal procurement Making shell script for server automation. Scheduling/Controlling of jobs using crons Managing internet proxy server with using squid Worked on external DNS configurati