Linux Administrator Resume
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Laurel, MD
SUMMARY:
To obtain a position that will allow me to utilize my interpersonal skills in a professional, yet challenging and stimulating environment while contributing to the success of the company
TECHNICAL PROFICIENCY AND EXPERTISE:
Operating Systems: RHEL/CentOS 6/7 Windows R2 2012
Servers/Services: NFS, SSH, Telnet, Apache, Tomcat, DNS, LVM, Github, Docker
PROFESSIONAL EXPERIENCE:
Confidential, Laurel, MD
Linux Administrator
Responsibilities:
- Troubleshooting all kinds of UNIX problems and assisting users.
- User and Group administration in Linux.
- Day to day resolving ticket issues.
- Creating and maintain user, groups account on Linux servers.
- Knowledge of installing RHEL server from scratch using kickstart and Pxe boot.
- Deployment, configuration and administration of VMware VSphere 5.1 environments as well as Red hat (5.and 6.x) installed required binaries and packages.
- Maintain and installing of RPMs and custom package repositories. Deploy, install and configure.
- Hand on experience in data center, work with architecture team to design test, build and support infrastructure.
- Responsible for migration of Microsoft Virtual Servers and VMware servers to ESX platform.
- Diagnosing and resolving system related tasks in accordance with priorities setup in dealing with trouble tickets.
- Installation of operation system patches, updating the maintenance levels when required, when server went down coordinated with Data center team to bring up the server within the time.
- Strong knowledge of Linux kernel configuration, performance monitoring and tuning.
- Good knowledge of LVM, which includes creating, PVs, VGs, LVs and file systems and troubleshooting.
- Involved in complete administration tasks on UNIX, RHEL and documentation for the project executed.
- Responsible for installation, configuration and administration if RHEL on x86 architecture.
- Rapid provisioning and configuration management for CentOS, Kickstart.
- Build automatic provisioning system with Kickstart and Golden Image.
- Architected and implemented automated server provisioning using Kickstart.
- Installed, monitored and supported Web and Application servers on Linux environments.
- Implementation and setup of local Linux disk backups using open Source applications.
- Profound understanding of networking on UNIX.
- Hands on experience using the vi editor.
- Install, configure, tuning, security, backup, recovery and upgrades of Windows/ Linux and higher.
- Experience using Kickstart and modified Kickstart based on server profiles and hardware specifications.
Confidential, Rockville, MD
Linux Administrator
Responsibilities:
- Provide support in a demanding 24/7 Production environment in Linux
- Setup configuration file for kick start environment for Linux production and test systems.
- Knowledge of built, manage and maintain Cisco UCS enclosure and Blades.
- Connecting blades to IO modules and Fiber interconnect.
- Creating Profiles on new blades with templates with in SLA.
- UCS cluster redundancy testing to ensure VMware vMotion capabilities and full redundancy of cluster (HA).
- Rack/Stack, Cables, Logical configuration, deployment of UCS clusters.
- Provide remote support for field engineers.
- UCS project to stabilize the environment migrate to UCS central, create standard server profile policies.
- Managing database, storage, network and System management teams.
- Knowledge of Infoblox to assign DNS and DHCP/ Dynamic IPs.
- Assign IPs with third party tools for external facing application (Mark Monitor).
- Restoring and backup from NetBackup tool.
- Responsible for creating and managing user accounts, security, rights, disk space and process monitoring Solaris, CentOS and RHEL.
- Experience administering, installing, configuring and maintaining Linux.
- Experience installing, upgrading and configuring Red Hat Linux 5.x, 6.x, 7.x using
- Kickstart Servers and Interactive Installation.
- Configures DNS, NFS, FTP, remote access, and security management.
- Creates Linux Virtual Machines using VMware Virtual center.
- Installs, upgrades and manages packages via RPM and YUM package management
- Installs, configures and supports Apache on Linux production servers.
Confidential, Washington, DC
System Analyst
Responsibilities:
- Installation, Configuration and Upgrade of RHEL 5.x,6.x OS.
- Daily Administration of RHEL 5.x and 6.x.
- Administered Linux servers for several functions including managing Users, Groups and Permission for each Group and Users.
- Create and maintaining user, groups accounts on Linux Servers.
- Implemented and administered VMware ESX 4.x for running the Red Hat Linux Servers on development and test servers.
- Installed software packages and configured File systems as per specifications of client.
- Involved in configuration and support of production environment hosted in a 24x7 setup.
- Troubleshooting and problem resolutions on Linux servers.
- Troubleshooting application issues on Apache web servers and database servers running on Redhat Linux.
- Monitored the servers and Linux scripts regularly and performed troubleshooting steps.
- Package management using RPM, YUM and UP2DATE in Red hat Linux.
- Expertise in Linux backup/restore with tar, gunzip, including disk partitioning and formatting.
- Maintained necessary backup of the important files and documented Linux scripts for future reference.
- Troubleshooting all kinds of UNIX problems and assisting users.
- Involved in installing infrastructure and maintaining the performance of server, availability. Storage system software and functionality and interface components.
- Involved in hardening security on all UNIX servers.
- Involved in troubleshooting shell scripts.
- Wrote & automated security audit scripts in the environment.
- Knowledge of installing RHEL Server from scratch using Kickstart.
- Server Installations, configurations, upgrades and migrations on HP - UX, Linux.
- Created RAID volumes using RAID Controllers and LSI Hardware.
- Configuring and maintaining virtual server environment using VMWARE ESX vSphere 4.x.
- Install and configure ftp servers running wu-ftpd 2.6.
- Performed day-to-day LVM operations and System Admin tasks.
- Creating Linux virtual machines using VMware virtual center.