Linux Systems Administrator Resume

SUMMARY:

Configured networking in both Solaris and Linux, including network bonding and IPMP.
Setup central log server for remote logging. Monitored system log files.
Perform system monitoring; cup, memory, I/O, hardware, jobs scheduling and processes management
Creating new partitions, including raid partitions, logical volumes, zfs file systems for running systems nondestructively.
Performed package management for system upgrades and updates using yum and rpm.
Build local yum repository for internal network use.
Create and extend physical volumes, volume groups. Resize existing logical volumes for additional space requirements. Setup user account quotas for system resource management
Restrict access to files and directories using Access Control Lists file permissions. Set suid, sgid and stickets on files as needed.
Configured firewall using iptables for system security.
Configure directories to enable group collaboration and private/public sharing
Configure NFS servers for file sharing across the network
Setup NTP servers for time synchronization of multiple clients on the network.
Configure SSH server for password less login, secure ssh logins and restrict ssh logins to local network using iptables.
Perform patching on running servers using live upgrade, yum update, reducing minimal downtime.
Manage and troubleshoot user account issues login issues
Troubleshoot network connectivity, hardware, cup, memory, I/O, boot, DNS and other application issues
Installed and configured DNS for internal name resolution. Daily Administration and Management of Multiple Red Hat Enterprise Linux servers

TECHNICAL SKILLS:

Red hat Enterprise Linux Systems Administrator with proven mid - level experience in RHEL 5, RHEL 6, Red hat server clusters
Datacenter Virtualization, Oracle Solaris 10 and 11, VMware Workstation, VMware ESXi Hypervisor

PROFESSIONAL EXPERIENCE:

Confidential

Linux Systems Administrator

Responsibilities:

Red Hat Enterprise Linux Systems Administrator (6.x)
Unix/Linux System Administrator (solaris, Redhat,Centos)
Daily Administration and Management of Multiple Red Hat Enterprise Linux servers
Perform large scale configuration and installation of Red hat instances using kick start
Symantec netbackup 6.1, 7.5
Configure and Administer Netbackup media and master server
Restore and backup client data for multiple clients.
Troubleshot Netbackup errors including different error codes.
Recall media from off - sites, exported and imported then into to the library
Automation of system administration tasks using shell scripting
Perform bare metal installation and configuration of VMware Hypervisor on 64-bit servers
Planning, development and Implementation of hard ware requirements to support a broad
Experience configuring Iptables /Firewall, Selinux,based
Created and configure LVM partitions
virtualization infrastructure using VMware and Red hat tested technologies
Physical hardware troubleshooting experience
Installation and configuration of Solaris zone/ldom
Red Hat Network (RHN)
Ability to enable virtualization and verify critical flags required for cloud based operations
Performed installation and management of 300 virtual machines on VMware ESXi
Experience in Enterprise Virtualization and Cloud Computing
Expertise in Solaris virtual environments.
Installed multiple sparse and whole root zones within one physical instance of Solaris 10.
Performance Monitoring and capacity planning.
Setup ZFS quotas, reservation and automatic NFS-share of directories
Used SMF system utilities
Create and manage user accounts. Setting password aging and account expiration.
Troubleshoot user account issues and network related connectivity issues
Install and provision new servers to the network using non-interactive kick start and, jumpstart
Perform large scale configuration and installation of Red hat instances using kick start installation
Perform bare metal installation and configuration of VMware Hypervisor on 64-bit servers
Planning, development and Implementation of hard ware requirements to support a broad based
Physical hardware troubleshooting experience
Ability to enable virtualization and verify critical flags required for cloud based operations
Performed installation and management of 300 virtual machines on VMware ESXi
Experience in Enterprise Virtualization and Cloud Computing
Expertise in Solaris virtual environments.
Installed multiple sparse and whole root zones within one physical instance of Solaris 10.
Performance Monitoring and capacity planning.
Setup ZFS quotas, reservation and automatic NFS-share of directories
Used SMF system utilities

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