SUMMARY:

Unix/Linux systems administrator with over 6years of enterprise support. Has experience with managing Unix/Linux platforms including Oracle Solaris 10 &11, Red Hat Enterprise Linux RHEL Versions 6 & 7and CentOS 6 & 7. Proficient with Solaris, Red Hat and CentOS systems installation and configurations, platform network configuration, system security, service management, file system management, and system tuning. Proficient with Symantec NetBackup for enterprise backup and Infoblox for DNS, IPAM, NTP and Advanced DNS threat management. Have a great passion for information security.

SKILLS:

Platforms: Oracle Solaris 10 & 11, Red Hat Enterprise Linux 6 & 7, ESXi, X86/X64 platforms, Windows 2003, 2008, 2012 ServerHardware Sun SPARC (Sun Fire V440, V490, V880, V890, T5220, T52

Intel platforms HP (9000, ProLiant):

Languages: UNIX Shells (sh, csh, bash), PHP, HTML, SQLStorage Tech Solaris Volume Manager, Veritas, Symantec NetBackup, TCP/IP, LAN/WAN, VPN, VMware, Oracle Database, MySql Database

Systems Monitor: Solarwinds and Xymon Monitor

PROFESSIONAL EXPERIENCE:

Confidential

Unix/Linux Administrator

Responsibilities:

• Performed server solutions for Oracle Solaris 10 and 11.2 and Red Hat Linux, including OS installation and server network configuration.
• Mitigates sever security vulnerabilities as identified through vulnerability scans using STIG.
• Implemented OS patches and upgrades as they become available.
• Installed and configured applications including apache, php, and perl.
• Managed user accounts as required to perform assigned functions (create, modify, delete and manage permissions of accounts.
• Monitored systems and manage system resources as necessary
• Maintained system accounting files, application logs and error log files
• Document solutions and procedures for operation and share on the share drive for others to use as necessary.
• Performed Infoblox NIOS versions upgrade as new releases become available.
• Performed system resource management including file systems, security checks, and local storage configuration and management.
• Configured various DNS records for both internal and external resolutions including Host/A/AAAA records, CNAME records, MX, TXT etc.
• Escalated vendor support for Solaris related issues, Symantec and Infoblox DNS cases as necessary per contractual agreements. Coordinated with Centurylink for public facing DNS configurations
• Configured and managed NetBackup policies, performed systems restores from backup catalogs and performed NetBackup appliance upgrades
• Monitored, troubleshoot and fixed backup failure issues.

Confidential, Landover, Maryland

Responsibilities:

• Responsible for installation, configuration and administration of Unix/ Linux servers
• Configuration and management of local disk devices & Managing File Systems
• Introduced new Unix/Linux servers to the network. Maintaining and troubleshooting network connectivity.
• Configured Multiple sparse and whole root Solaris Zones, resource management of Zones and Zones migration
• Performed Systems Security Administration by restricting access to both server terminals and systems resources.
• Bash Scripting
• Implemented SVM/LVM for Unix/Linux local storage management. Setup ZFS quotas, reservation and automatic NFS - share of directories
• Monitoring System Performance and alert logs, Disk and CPU utilization.
• Patching and upgrading systems for Security and bug fixes
• Managing local backups and restore using tar, ufsdump, ufsrestore, Snap shot backup etc.
• Managing and scheduling system processes with the cron utility.
• Configuring the services for sharing system resources such as remote login through TELNET, FTP
• Day-to-day functional administration tasks, as well as application-specific technical support
• Creating and managing user account, groups and access levels.
• Implementing 0-5 RAID levels for Unix Linux systems.
• Managed system services using SMF and the service utilities for Unix/Linux systems.
• Experience with remedy ticketing system.
• Knowledge of Symantec professional services; including but not limited to Storage Libraries, Tape drives and media pools configurations. Troubleshooting backup and restore failures, media drive and tape library issues. Sound understanding of Dedup and creating policies. Expertise in installing, configuring and managing Symantec NetBackup software

Confidential, Largo, Maryland

UNIX Systems Administrator

Responsibilities:

• Built servers on bare metal and VMware: solaris10, CentOS 6 and Red Hat 6
• Performing system monitoring for production applications
• Administered user accounts and file management on Solaris 9 & 10 and Red hat Linux 6
• Managed Network File System in Solaris and Linux
• Advised Management on changes, system upgrades and installations.
• Performed Network configurations in UNIX and Windows environments
• Configured and installed Apache Web Server deployed in UNIX/Linux environment
• Disk Management by slicing disks in Solaris and Linux and building file systems on them
• Efficient with SVM, LVM and ZFS File systems management
• Configured and maintained Veritas Volume Manager, Veritas File System and Veritas Clustering
• Administered Solaris and red hat using SMF and the Service utilities respectively
• Provide hands-on technical support related to the overall health and maintenance of the
• Linux/UNIX operating environments in support of 24/7 operations
• Server hardening by restricting access to terminals, system resources, disabling unnecessary services and securing server room
• Apply OS patches and upgrade on a regular basis
• Performed upgrades of administrative tools and utilities
• Performed local backups and restores using Unix/linux native archival utilities (tar, cpio, ufsdump and ufsrestore)