OBJECTIVE:

Linux administrator with a strong background in a wide variety of systems support and solution based IT services for Linux and Windows administration including monitoring, configuration, continuous self - improvement seeking a Linux administration position in a goal oriented IT environment that will utilize my existing and hands-on skills, as well as experience to achieve the organizations objectives troubleshooting, and maintenance of operating systems and a strong advocate of team work, performance and excellence

TECHNICAL SKILLS:

• Operating Systems: CentOS/RHEL 6/7
• Services: Apahce 2.x, NFS, LDAP, FTP
• Languages: Bash
• Software/Applications/Tools: VMware, AD, Jenkins, Solarwinds, Samba, ServiceNow; Ansible, iDrac, ILO
• Hardware: HP Prolian, Blade servers

PROFESSIONAL EXPERIENCE:

Confidential, Washington, DC

Linux Administrator

Responsibilities:

• Experience in installing, configuring and managing Linux Operating System, worked with various Linux Distributions such as RHEL 5,6,7, CentOS, Ubuntu.
• Implements and manages RAID levels like RAID0, RAID1, RAID5 and RAID10 using Logical Volume Manager.
• Storage management tasks such as creating new partitions, file systems and managing them according to requirements
• Manages user accounts including creating new accounts and groups, setting up user environment, changing passwords, changing default permissions, and setting ACL's.
• Setup and Configures NFS and Samba file sharing services on Linux
• Configures Sudo for users to access the root privileges
• Installs, upgrades and managed applications and services using YUM repository and RPM files.
• Develops Cron jobs for automating administrative tasks like file system management, process management, creating and deleting backups, server reboots.
• Tweaking SSH configuration file to harden remote host login and transfer files
• Installs and manages HTTPD/HTTPS services on Linux production servers.
• Configures Linux network services like DNS, FTP, SFTP, SCP.
• Configures and implements Firewall/Iptables rules based on requirements.
• Install, configure, and troubleshoots Nagios plugin to manage remote clients.
• Involved in installation and upgrade of kernel Virtual Machines (KVM) and worked on virtualization with VMware, KVM and Kernel upgrades
• Uses JIRA for bug and issue tracking purposes
• Participates in root - cause analysis of recurring issues, system backup and security setup.
• Response to Linux systems problems and resolving them on a timely basis.
• Provides thorough documentation of the various issues handled along with the resolution provided.
• Assist other team members with NFS deployment.

Confidential,Washington, DC

Linux Administrator 

Responsibilities:

• Involved in Building and configuring Red Hat Linux Servers using Kickstart server as required for the project. Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging.
• Configured, tested and troubleshoot newly built Linux servers with nic card configurations, TCP/IP and applications that ran off TCP/IP stack.
• Installation, configuration and upgrade of Apache, JBOSS, Web sphere, MQSeries, Oracle & IBM Databases on the RHEL and OEL Linux Systems manually and also through Puppet.
• Evaluated varied system logs and enforced good practices for web and application server environments.
• Configured servers and infrastructure running RedHat an JBOSS, using PUPPET to configure, install, manage and bring up JBOSS and applications.
• Experience in applying patches and plug - ins for JBOSS application server.
• Installed and configured JBOSS Application servers on DEV, QA and PROD Systems.
• Migrated Applications from UNIX (Solaris, AIX and HPUX) to Linux (RedHat) systems.
• Tuned OS parameters like SWAP and virtual memory setting s to improve the JBOSS performance.
• Configured Apache for JBOSS domains with virtual servers.
• Using Wire shark Capture and analyze TCP, UDP, IP Packets.
• Experience in implementing high availability clusters using Red hat Cluster Solution (RHCS) with EXT3 and EXT4 file systems, VERITAS Cluster with VERITAS volume manager.
• Experience in Data Transfer of large amounts of Data sets required for migration. Data in few servers are in close to 100TB.
• Responsible for maintenance of development tools and utilities to maintain shell, Perl automation Scripts.
• Extensive use of Rsync utility for customized data migration from UNIX to Linux systems.
• Day to day troubleshooting and support for the end users newly migrated to Linux.
• Provided tested documented solutions for the second level infrastructure support teams for cutover activities from UNIX to LINUX which involves various scenarios like Hostname Swap, Hostname and IP swap, IP swap.

Confidential, DE

System Analyst Dover

Responsibilities:

• Set up and administer user and groups accounts, setting permissions for users.
• Performed Patching using BladeLogic.
• Implantation and troubleshooting of network service NFS, FTP, NTP, Telnet and SSH.
• Maintaining appropriate filesystem security and monitoring status of process in order to increase system efficiency.
• Installation of SSH and configuring of keys base authentication.
• Performed backup/restore operations using tar, and gzip.
• Worked with system, network, security and storage teams to prepare and configure new servers.
• Troubleshoot system and network related issues.
• Knowledge of TCP/IP protocols.