SUMMARY

• System administrator with 8 years of experience in IT with more TEMPthan five years as UNIX/LINUX System Administration in Red Hat Linux (RHEL 3/4/5/6), CentOS 4/5/6.
• Extensive System Administration experience in heterogeneous environments comprising Linux.
• Experience in patches and packages installation on Linux/Unix Environment.
• Configuration of NIS, NFS, SAMBA, SENDMAIL, APACHE SERVICES on Linux & UNIX Environment.
• Experience in Logical Volume Manager for creation of Volume groups / Logical Volumes and File systems in UNIX environment.
• Experience in Build, Upgrades, installs, configuration, administration, security and monitoring on Linux.
• VMware Infrastructure 5.x Installation & Configuration.
• Experience in LVM and SAN/NAS storage.
• Experience in creating physical volume, logical volume, volume groups using LVM’s in Linux.
• Experience in Linux Operating System, System Backup/Restore, Kickstart and Logical Volume Manager software products.
• Experience in updating YUM Repository and Redhat Package Manager (RPM)
• Excellent in Configuring and Administering NFS, SMTP, DHCP, samba in heterogeneous environment.
• Coordinating with Vendor Support engineers to resolve high priority issues.
• Setup, maintain and management of user accounts and groups according to teh security needs and adding teh packages and patches when needed.
• Expert in Datacenter Operations including hardware, software setup monitoring, troubleshooting on a 24 x 7 basis with Service Now, Tivoli monitoring tool, Splunk.
• Experience working with op, Cloudsystem monitoring commands such as top, iostat, vmstat, topas,netstat etc..
• Configuring & Troubleshooting NFS Servers and Clients, in UNIX Environment.
• Experience in Redhat Security SELinux.
• Good exposure to Network Storage Solutions like DAS, NAS and SAN.
• Familiar with Big - Data Hadoop,Cloud.

TECHNICAL SKILLS

Operating Systems: Linux (Red hat - RHEL 3/4/5/6), Cent OS 4/5/6.

Hardware: IBM X series M 3650, HP DL380 G5/G6/G7/Gen8, Dell Poweredge 1950, 23002450, R810, SUNFIRE 3800/4800/6800 ).

Web Servers: Apache (httpd), apache-tomcat, jboss, weblogic.Tomcat, WebSphere,Apache Http Server, IIS 4.0/5.0, MQ Series.

Languages: Korn Shell, Bash, Java.

Databases: Oracle 8i/9i/10g, DB2, MS SQL SERVER 7.0/2000, SyBase.

Networking: NIS, NFS, AutoFS, DNS.TCP/IP, DNS, DHCP and Cisco Routers/Switches.

Other Skills: VMware, VCenter Server, VMware Server, Nagios.

PROFESSIONAL EXPERIENCE

Confidential, Deerfield, IL

Unix System Administrator

Responsibilities:

• Build, configure and deploy Virtual machines and templates on RHEL 6 and CentOS 5/6.
• Hands on experience in configuring ESX, ESXi and vSphere4 with virtual center management.
• Provided on-call support by rotation to provide 24x7x365 support.
• Acquired comprehensive requirements from Project Managers, Team Leads pertaining to teh servers to be migrated.
• Utilized ServiceNow for data center service requests (Network requests for IP’s,ILO’s, and DNS changes).
• Expert in Upgrades, installs, configuration and administration security and monitoring tools on Linux.
• Installed patches and packages installation on Linux/Unix Environment
• Setup and configure failover load balancing using IP bonding for network cards.
• Used Iptables to set up, maintain, and inspect teh tables of IPv4 packet filter rules in teh Linux kernel..
• Configured volume groups, logical volumes and created file systems, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Experience in Linux kernel configuration and upgrade
• Updating YUM Repository and Redhat Package Manager (RPM).
• Performing software installations using yum and RPM.
• Setting up Cron schedules for backups and monitoring processes.
• Monitored Linux server for CPU Utilization, Memory Utilization, and Disk Utilization for performance monitoring..
• Administration of RHEL 5/6 which includes installation, configuration, testing on both physical and virtual machines.
• Capturing teh image of production server, Configuring RAID and build teh new server using teh image on system imager server with PXE boot.
• Installation and configuration of Redhat Device Multipathing.

Confidential, Carol Stream, IL

Unix/Linux Administrator

Responsibilities:

• Installation, Configuration and administration of RedHat Linux 4/5.
• User account management and support.
• Worked on Kick-start OS integration, DNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.
• Network traffic control, IPSec, Quos, VLAN, Proxy, Radius integration on Cisco Hardware via Red Hat Linux Software.
• Responsible for configuring and managing various applications on Linux.
• Configuration and Administration of NIS environment.
• Managing file systems and disk management using LVM.
• Involved in Installing and configuring of NFS.
• Escalation of issues to Level 3 system Admin.
• Worked on volume manager to create file systems as per user and database requirements.
• Trouble shooting teh system and end user issues.
• Responsible for configuring real time backup of web servers..
• Responsible for reviewing all open tickets, resolve and close any existing tickets.
• Document solutions for any issues that has not been discovered previously.
• Perform Server monitoring using various tools such as top, iostat, Nagios.

Confidential, Carol Stream, IL

Data Center Support Engineer

Responsibilities:

• Mounting, racking, cabling and patching of physical servers in teh datacenter
• Install images on IBM X series, HP, Dell servers
• Configured and setup networking for IMM, HP ILOs and setup console access for Administrators
• Upgrade servers firmware, IMM firware using CD/DVD
• Provided troubleshooting and support on hardware, network failures
• Performed system motherboard changes/replacements
• Adding CPU and memory on servers as required
• Installing physical components on server like HBA, NICs and internal disk replacements in cases of failed disks.
• Open ticket with hardware vendors and discuss replacement of servers and various server parts.4
• Operated and monitored tape units, printers, mass storage units
• Organized, scheduled and performed equipment maintenance routines and operational tests.
• Initiated and updated trouble tickets, created and communicated scheduled maintenance alerts and service interruption notifications.
• Maintained daily logs identifying activities, task, alerts and problems in teh data center.
• Monitored and escalated outages and security threats identified in logs and monitoring systems.
• Identify hardware issue on servers reporting warning lights