Server administration, install software, apply patches, manage file systems, monitoring performance on Linux. Installation of Servers – WEB, SAMBA, SSH, NIS, NFS, DHCP, DNS, TELNET, FTP, SQUID and YUM. Managed and scheduling cron jobs File system management – VxVM, ext3, ext2 and gfs including LVM and RAID, AUTOFS Backup tools –knowledge of tar Backup tool and Netbackup