SUMMARY

• Motivated Linux Systems Administrator wif more than six years of skills and experience in the IT industry wif Linux, Ansible configuration management, Automation, Docker containerization, Open - source technology, Server management/patching, Code writing, and VMware virtualization.
• Seeking a position wifin a well-known and strong organization where I can utilize my skills and abilities to benefit the company and achieve professional growth as well.

TECHNICAL SKILLS:

• Install, Configure, Manage & Troubleshoot Linux Servers.
• Worked wif administration of CentOS 5.x/6.x/7 and RHEL 5.x/6.x/7.x.
• Experienced wif RedHat Satellite.
• Performed patching of systems running the Linux operating system.
• Setup bare-metal servers using PXEboot and Kickstart.
• Monitored Linux systems via Nagios.
• Wrote YAML based Ansible playbooks.
• Configured Linux systems using configurations management tools such as Ansible to automate tasks in the environment.
• Experienced in deploying and managing applications through the Docker platform.
• Performed automation of day-to-day tasks via Bash Scripting.
• Experienced in configuration servers like DHCP, TFTP, FTP, NFS, DNS, Apache HTTPD, PXEboot, and NIS.
• Worked wif VMware virtualization technology.
• Performed fine-tuning of Linux Systems.

PROFESSIONAL EXPERIENCE:

Confidential, Dallas, TX

Linux Systems Administrator

Responsibilities:

• Installation, Configuration and Administration of RedHat Linux and CentOS 5.x, 6.x, 7.x on both physical and virtual systems.
• Created Linux Virtual Machines using VMware templates.
• Registered RHEL systems wif RedHat Satellite.
• Patched Linux based systems through YUM package manager and Ansible.
• Upgraded Red Hat Enterprise Linux (RHEL) systems via RedHat Satellite.
• Analyzed and fixed issues relating to system upgrade failures.
• Wrote Ansible playbooks to perform software installation/upgrades, post-build configurations, and system provisioning.
• Utilized Ansible ad-hoc commands to perform automation on multiple Linux systems such as user/service management and configuration updates.
• Managed Ansible inventory host file.
• Worked wif Ansible modules, roles, variables, and handlers.
• Troubleshoot Ansible related issues.
• Familiarity wif Docker containerization technology.
• Maintained Docker images of various applications.
• Deployed and managed applications wifin Docker containers.
• Worked wif both production and non-production systems.
• Monitored systems via Nagios.
• Troubleshoot issues related to Linux servers.
• Performed kernel tuning by modifying kernel parameters as required.
• Setup the NFS server for file sharing across the network.
• Secured systems using SELinux and IPTables.
• Worked wif SSH configuration for remote access.
• Wrote bash scripts to automate various tasks such as deployment/upgrading of packages, fetching uptime information of Linux systems, and creating backups of log files.
• Dealt wif system performance issues.
• Analyzed systems logs to resolve various issues.
• Repairing the corrupted file system using FSCK.
• Created Logical Volumes (LVM) for Linux operating system.
• Worked extensively on VMware (virtualization) platform.
• Managed packages using RPM and YUM package manager.
• Configured ports for various services.
• Administered file and directory permissions for users and groups.
• Installed Linux Operating Systems via PXEboot/Kickstart method.
• Performed troubleshooting of various servers like NFS, NIS, DNS, DHCP, and FTP.
• Setup scheduled jobs via Cronjob.
• Deleted and backed up old logs files according to company policy.
• Worked wif ServiceNow ticketing tool.

Confidential, Delaware

Linux Systems Analyst

Responsibilities:

• Performed L1/L2 system administration duties.
• Installed and configured ESXi hypervisor on bare-metal servers.
• Uploaded iso images into VMware datastores.
• Deployed and configured virtual machines via iso images.
• Managed virtual machines through VCenter and VSphere Client.
• Patched Linux systems.
• Worked wif bash scripting to automate repetitive tasks.
• Setup PXEboot server for automating the installation of OS on new systems.
• Installed and configured the DHCP, TFTP, FTP, and NFS servers.
• Created accounts and reset user passwords.
• Administered sudo access for users.
• Used Linux commands to assist users wif changing ownership and permissions of files and directories.
• Assisted users wif killing processes.
• Monitored and managed processes and ports on Linux systems.
• Handled network issues such as systems not pinging.
• Setup Apache Web Server.
• Performed backup of file systems.
• Modified local DNS of Linux systems according to requirements.
• Configured Linux systems wif static IP addresses and hostnames.
• Worked on hostname resolution issues.
• Updated network settings wifin network card configuration files.
• Managed/Copied data on and between Linux systems.
• Performed disk management wif Logical Volume Management.
• Created different file systems on disks and partitions as needed.
• Managed the mounting and un-mounting of Linux file systems.
• Performed RPM package management wif RPM and YUM.
• Worked wif hard and soft links of files/directories.
• Created local YUM repositories.
• Patched Linux systems through attaching iso images.
• Setup SSH password-less based autantication.
• Troubleshoot issues relating to users not being able to remotely connect to systems via SSH.
• Knowledge of Linux system Run levels and RAID levels.
• Monitored the health of systems.
• Managed system logs.
• Configured IP tables/firewall.
• Compressed data using the Tar utility.
• Shared files between Linux and Windows systems via WINSCP.
• Managed SSH password less keys.