SUMMARY:

• Over 9 years of professional IT experience, with more than 6 years of hands on experience as a Systems Administrator, UNIX/LINUX (RHEL, CENTOS, SOLARIS) + WINDOW + VMWARE and Oracle Database Administrator. I am a great team player with a fast learning curve. I can work perfectly under stressful conditions where speed and accuracy are necessary for mission critical databases and systems availability. My attention to detail and ability to maximize system resources will be beneficial to your company. Perform multiplatform Server builds on VMware, which include Windows Server 2008, UNIX Solaris 10 and 11, LINUX Centos 6.4, RHEL 6.4, RHEL 7. Responsible for assigning hostnames, static IP addresses, default gateway and DNS to Windows 2008 Servers so as to introduce them to the network. Use the “dcpromo” tool to configure DNS, Active Directory as well as to promote standard windows server to domain controllers, create group policies and manage accounts.
• Windows 7, 8 and 10 NOS imaging and configurations and software deployment. Create new User Accounts and profile, on Windows NOS, UNIX/LINUX systems. Troubleshoot and resolve OS, application, malware desktop related issues on various NOS. Use TCP/IP troubleshooting tools to troubleshoot and resolve network connectivity and DNS related issues in the LAN. Configure Windows NOS clients to join the domain as well as configure file and print sharing on some Windows NOS to enable resource sharing. Experience in building and configuring VMware host and guess systems on Oracle Virtual Box as well as bridging the Guess VMware systems to communicate with other physical LAN systems.
• Great hands on experience in systems and software installation, user and group administration, role base access control, file transfer and sharing; competent in file systems, volume and storage management, amongst others. Solid background in database designs, migration, installation, administration, troubleshooting, development and testing Servers. Experience in installation, configuration, patches, performance tuning, backup and recovery….

PROFESSIONAL EXPERIENCE:

UNIX/Linux Systems Administrator

Confidential,Beltsville,MD

• Build, Install, configure brand new virtual and physical servers, test, deploy Solaris 10, RHEL 6, CentOS 6.4 servers to the network: OS installation and configuration - standard and advanced (net installation and jumpstart, kickstart).
• Hardening, Patching (Solaris 10 Servers using 10-Recommended patches), and upgrades (release), on standalone servers (using single user mode), and on production servers (live upgrade)
• Writes basic bash shell scripts to automate processes using crontab; Installs packages and applications
• Configure Apache and MySQL on Solaris 10 for virtual and web hosting; building and hosting websites; configure web hosting company DNS settings: install and configure Samba for quick publishing using a third party web page maker.
• User and security management
• Setup, configure and troubleshoot TCP/IP, DHCP, DNS; NFS, CIFS, and samba servers in a multiplatform LAN
• Shell scripting (bash) to schedule and automate processes including full and incremental backups using tar, cpio and ufs dump; migrate and enlarge file systems on Solaris 10.
• Managing swap configurations
• Perform multiplatform volume management using SVM, LVM, ZFS volume manager, and VERITAS volume manager; installed and configure a LAN wide NAS (Free NAS) used for creating LUNs and attaching to windows 2008 servers and to Solaris 10 servers using iSCSi
• Build, configure, secure and deploy Solaris 10 system (global)
• Build, Install, configure, secure, deploy and migrated Solaris 10 local zones (spare root or whole root zone)
• Troubleshoot Solaris 10 issues emanating from hardware and software related and configuration issues
• Virtualization (VMware Esxi 5, 5.5 and Oracle Virtual Box)
• Configure a samba server on a Solaris 10 and mapping to the windows 2008 server. Setup a domain, active directory, create group policies on a Windows 2008 server; install
• Responsible for data management using native Solaris utilities for archiving, compression backup and restore.
• Supporting system users and troubleshooting system issues. Document solutions for future reference.
• Installing and maintaining the operating system and related software products.
• Participating in root-cause analysis of recurring issues, system backup and security setup, Provide 24X7 Support in Production Testing and Development environments.
• Installed and configured databases on Unix/Linux platforms

UNIX/Linux Systems Administrator

Confidential,MD

• Responsible for building windows 2008 servers, NOS, Unix Solaris 10 and 11, Linux Centos 6, 6.4, Red Hat Enterprise Linux (RHEL) 6 and 7 on VMwares and physical servers.
• Assign hostnames, Default Gateway, DNS, Static IP addresses to Windows 2008 Servers as to introduce them to the network. Use the “dcpromo” tool to promote standard Windows Servers to domain controllers, configure DNS, Active Directories, create group policies and manage user accounts, set remote desktop access…
• Install software and security suites on Windows 7, 8 and 10 NOS, and home systems, perform imaging, help end user with basic desktop related issues and hardware maintenance; create user accounts and profiles…
• Troubleshoot and resolve OS, application, malware, adware, and spyware on various NOS. Use TCP/IP troubleshooting tools to troubleshoot and resolve network connectivity and DNS related issues in a LAN.
• Configure Windows NOS to enable resource sharing, Build and configure VMware host and guess Systems on Oracle Virtual Box as well as bridging the Guess VMware systems to communicate with other physical LAN Systems.
• Install and configure Unix/Linux Servers using essential and file management tools working with Text files; Deploy Software, provide end user support and quality assurance
• Access Servers and systems remotely using SSH, log in and switch users in multiuser targets.
• Archive, compress, unpack, and compress files using tar, star, gzip, zip, and bzip2. Create and edit text files, delete, copy and move files and directories. Create hard and soft links. List, set and change standard ugo/rwx permissions.
• Operate running systems, boot, reboot, and shutdown system normally. Boot systems into different targets manually, interrupt the boot process in order to gain access to a system.
• Identify CPU/memory intensive processes, adjust process priority with renice, and kill processes, locate and interpret system log files and journals. Monitor date traffic using tools such as tcpdump and snoop commands, display authentication logs and manage root terminal access…
• Access virtual machine’s console and terminal using putty, start, stop, and check virtual machine’s status of network services.
• Configure systems to launch virtual machine at boot, network services to start automatically at boot; configure a system to use time services.
• Install, patch, and update software packages on Unix/Linux systems and network, a remote repository, or from the local file system.
• Update the kernel package appropriately to ensure a bootable system; modify the system boot loader.
• Create, delete, and modify local user accounts. Change passwords and adjust password aging for local user Accounts.
• Create, delete, and modify local groups and group memberships. Configure a system to use an existing authentication service for user and group information.
• Configure Firewall settings using firewall-config, firewall-cmd, or iptables; configure key-based authentication for SSH.
• Use shell scripting to automate system maintenance tasks; resolve rogue lines and root related problems.

Systems / Oracle Database Administrator

Confidential,Baltimore, MD

• Responsible for setting and managing USER MANGEMENT, SPACE MANAGEMENT granting required privileges to users.
• Performing monthly and annual performance reports for trend analysis and capacity planning.
• Assist in SQL tuning and providing consultation such as creating Materialized views, adding indices, dropping unnecessary indices, using hints wherever possible, amongst others.
• Worked on both VMS and UNIX environments.
• Troubleshooting of various database performances by proper diagnosis at all levels like SQL.
• Worked on refreshing the tables, schemas using exp & imp and also using expdp & impdp.
• Refreshed the databases from PROD to UAT, QA, and DEV using RMAN.
• Performed the databases from 9i and 10g to 11g on Linux.
• Upgraded the databases from 9i and 10g to 11g and resolving the issues during upgrade.
• Worked on RMAN backup and recovery. Recover databases (full recovery) during database upgrade and point in time recovery as per the user request using RMAN.
• Re-validate views and compile the views which are invalid.
• Successful in applying RDBMS patches, security patches for improving the security and functionality of the databases.
• Achieved optimized performance for the databases by rebuilding indexes, on tables and indexes.
• Automate the processes like moving files, managing alert log, efficient backup by developing UNIX scripts.
• Involved in the installation, configuration and extended support to Oracle 11g, 10g, two node.
• 24/7 Production and development database support and administration.