Sankar K Email & Phone Number

 Performing User Administration like creating users and groups, modifying and deleting users and groups, managing user administration in Linux using SFI Director. Performing Package Administration like installing packages, removing packages, checking installed packages, Managed RPM packages on Red hat enterprise Linux with Yum Server. Disk Management, Implementing Logical Volume Management (LVM) and logical partitioning. Backup & Restore using tar, dump, rsync. Performing automatic job scheduling using Cron. Configuration of remote applications XINETD (Rsync, Nrpe and Telnet) services. Implementation of patch and kernel up-gradation on RHEL.  Maintained Remote servers using SSH, Putty, Implementation of security like Firewall (iptables, proxy), TCP Wrappers. Monitoring Disk Space Utilization, Memory Utilization and CPU Utilization and CPU load. Administering & Monitoring of Linux & AIX Servers. Administering, troubleshooting and managing core services like FTP, DNS, DHCP, NFS, NTP, and Postfix Servers. Monitored and supported Web Servers (Apache Server) on Linux environments. Implementing Sudo and Maintained Remote servers using SSH, Putty Console. Installed and configured the Mysql in the ERP Server.  Administrating & monitoring Nagios Servers. Worked on Remedy Ticketing System and Sales force ticketing system. Maintaining escalation process & SLA depends on the severity levels. Health check and taking reports on daily basis.

Chennai Area, India

 Over 3 years of extensive experience installing, maintaining and troubleshooting and fine tuning Linux based Servers. Good Experience in Installing Linux Based Servers over network (KICKSTART and PXE Boot). Performing User Administration like Administering users and groups securely.  Managed RPM packages on Red hat enterprise Linux with Yum Server.  Strong Experience to assign the Permissions and Advanced Permissions and ACL Permissions, and Maintaining Linux Quota System. Strong technical background in Disk Management, Logical Volume Management (LVM) and logical partitioning. Backup & Restore using tar, dump, rsync, and Configured different RAID Technologies like RAID 0, RAID 1 and RAID 5 on Linux. Experience of Kernel compilation, implementation of patch and kernel up-gradation on RHEL. Implementation of security like Firewall (iptables, proxy), TCP Wrappers. Analyzing Network traffic in the Ethernet networks using IPTraf, WireShark Tools. Monitoring Disk Space Utilization, Memory Utilization and CPU Utilization through Nagios. Installing, Configuring, administering, troubleshooting and managing core services like FTP, NFS, DHCP, NIS, SAMBA, DNS, NTP. Installed, monitored and supported Web and Application Servers (Apache Server, SSL) on Linux environments. Experience in installation and configuration of mail servers, highly proficient in working of various mail servers (Send mail, Postfix). Configuration, installing and administration of the My Sql. Provided production support in an on-call rotation in a 24x7 environment.

 Installing and Configuration and Administration different flavors of Linux (Centos, Ubuntu, Rhel). Installing and Configuration Mac OS (10.6.7) on MacMini Boxes. Installing Configuration XCode 4.2 and SDK5.0 on MacMini Machines. Up gradation Snow leaped to Lion and Mountain Lion on Mac Configuration eclipse and Android SDK, ADT Tools on Ubuntu 9, 10 Machines. Configuration LAMP environment and PhpMyAdmin on Centos 5. Installing and Maintaining Software Packages and Patches. Managed file permissions & ownership for important directories & files. Troubleshoot the boot issues.  Backup and restore using Buffalo tera station. Automated scheduled jobs. Maintained Remote servers using SSH, Putty, VNC. Configuration Printer’s local and Network based Printers.  Used IPTables to implement security and improve the network performance. Administering, troubleshooting and managing core services like FTP, NFS, DNS, DHCP, and AUTOFS.  Installed, monitored and supported Web Servers (Apache Server) on Linux environments.  Advanced SQUID Administration- Implemented polices for users. Manage Log Files- Syslog (Linux) management with Log rotate utility.  Coordinating with vendor for hardware issue.