SUMMARY:

Skilled Linux system administrator with six years of experience in the IT industry, specializing in working with and managing Linux servers running several flavors of Linux such as RedHat and CentOS. Currently seeking a position where I can continue to maximize my technical expertise.

SKILLS INVENTORY:

RedHat Linux Servers, CentOS Linux Servers, VMware, Virtualization, VSphere Client, VMotion, ESXi, Ansible, Playbooks, Bash Scripting, NFS, NIS, DNS, Apache HTTPD, FTP, Autofs, Amazon Web Services, Identity Access Management, EC2 Instance, S3 Bucket, SSH, SCP, WinSCP, SFTP, Putty, Ifconfig, Netstat, Ethtool, Networking, TCP/IP, UDP, Ping, TCPDump, NIC Bonding, Router, Switches, IDRAC Console, ILO Console, Cronjob, At, Hardlink, Softlink, RPM, Yum, Server Patching, Package Management, Server Performance Management, Service Management, User Management, Group Management, Disk Management, Logical Volume Management, PXEboot, Kickstart, Nagios Monitoring Tool, Raid Levels, Run Levels, Tar, ACL permission, fdisk, gdisk, Kernel parameters, and computer desktop support.

PROFESSIONAL EXPERIENCE:

Confidential, New York, NY

Linux Systems Administrator/Engineer

Responsibilities:

• Experience in installation, configuration, maintenance, and monitoring of different Linux distributions such as RedHat/CentOS 6 and 7.
• Setup the Preboot Execution Environment (PXE Boot) to automate the installation of RedHat and CentOS on both physical and virtual servers through customized Kickstart files.
• Performed user and group management and setup ACL permissions.
• Familiarity with networking concepts like OSI Model, TCP/IP, UDP, DHCP, and DNS.
• Worked with SAN storage.
• Performed disk management through logical volume management.
• Created partitions of disks via fdisk, gdisk and parted.
• Created various file systems on both disks and partitions.
• Mounted/unmounted file systems.
• Setup RAID levels on bare metal servers.
• Installed and configured various servers such as NFS, NIS, Apache HTTPD, DNS, FTP, TFTP, and DHCP.
• Resolved performance issues on Linux servers.
• Expertise in using SFTP, WinSCP, and Putty.
• Created proper documentation for various administration tasks.
• Managed system processes in Linux.
• Secured Linux systems by using iptables and Selinux
• Scheduled jobs with cron and at utilities.
• Installed and configured Nagios monitoring tool to monitor servers,
• Setup NIC bonding for redundancy and performance.
• Worked with package management through the yum and rpm utilities.
• Created hardlinks and softlinks of files in Linux.
• Experience with configuration management such as Ansible
• Experience with Bash scripting to automate my daily tasks.

Confidential, Warren, NJ

Linux Systems Administrator

Responsibilities:

• Experience in Linux system administration working on Linux servers.
• Worked in data center, where I racked and stacked servers, connected cables to both servers and switches, and added ram and hard drives.
• Patched/Upgraded Linux servers.
• Installed and configured NFS server for easier sharing of files and directories over the network.
• Installed and configured NIS server for user authentication.
• Strong experience in data compression and data backup with the utilization of the tar utility.
• Managed physical storage through logical volume by pvcreate, vgcreate, and lvcreate.
• Created and deleted users and groups on Linux servers, along with managing their permissions via chmod, chown, and chgrp.
• Managed files and directories on Linux servers.
• Installed and deleted RPM packages on Linux servers with the use of yum and rpm, along with upgraded packages.
• Automated administrative tasks by way of crontab.
• Installed and configured Autofs for automatic mounting of file systems.
• Managed various Linux services via the service and chkconfig commands.
• Managed various ports on Linux servers with iptables and netstat.
• Good knowledge of networking in Linux servers.
• Worked with the kernel parameters of Linux systems.
• Independent problem solving and a good team player with strong interpersonal and communication skills.

Confidential, New York, NY

Computer Desktop Support Specialist

Responsibilities:

• Entry level position for computer desktop support.
• Setup corporate office environment.
• Installed office equipment.
• Providing on - site office user support.
• Responding to users tech support tickets such as adding/deleting user accounts, password reset, install/upgrade computer software, troubleshoot computer hardware and software in a Linux and Windows environment, maintain a log of any software or hardware problems detected, and provide users with necessary regarding computer hardware and software.
• Installed and configured ESXi host on bare-metal machines.
• Managed ESXi host in vCenter via VSphere Client to deploy guest operating systems, RedHat and CentOS, along with distributing the necessary hardware resources amongst the different virtual machines.
• Performed console management by way of VSphere Client.
• Took VM snapshots and restored them to their original state.
• Deployed virtual machines via VM templates according to business need.
• Performed live migration of virtual machines through VMotion.
• Working experience with several services provided by Amazon Web Services such as EC2 instances, Identity Access Management, and S3 Bucket. Spun various Linux and Windows EC2 instances, created users and groups via Identity Access Management, and uploaded files online in S3 Bucket.
• Utilized bash scripting to automate different administration tasks such as creating users and groups, changing/updating configuration files, and fetching information from multiple servers.
• Installed and configured the Ansible configuration management tool on a centralized machine to manage multiple machines and automate various administration tasks. Ran Ansible ad-hoc commands on control node to quickly retrieve information from managed nodes. Wrote Ansible playbooks using modules and attributes to accomplish tasks such as creating and deleting users, installing and removing packages, starting and restarting services, and much more. Encrypted Ansible playbooks with Ansible vault.