Unix Administrator System

Mohammed Mazher

Email: ********.******.***@*****.*** Phone: 312-***-****

Status: Citizen

OBJECTIVE: To obtain a challenging position with an organization that will support professional development and offer long-term growth potential. Proven ability to successfully analyze an organization’s critical support requirements, identify deficiencies and potential opportunities, and develop innovative solutions for increasing reliability and improving productivity.

SUMMARY

•More than seven years of experience in System Administration Support, Design, Implementation, Maintenance, Tuning and Troubleshooting of Servers running on, Redhat (RHEL) 5.x,6.x,7.x centos 6.5 and more Unix flavors .

Experienced in installation, configuration, administration, troubleshooting, tuning, security, backup, recovery and upgrades of Linux (RedHat & SuSE).

Through experience with Red Hat kickstart and post-installation mechanisms for rapid mass deployment.

(Linux/Ubuntu) and configuring the servers for specified applications.

Configuring security groups and grouping the servers depending on the applications. Enabling and disabling of inbound and outbound ports of security groups.

Installed and configured of hardware and OS (Red Hat RHEL & SUSE) on x86 servers.

Manage file systems using Logical Volume Management, Resize file systems and protect them with LVM Snapshots

Configure dynamic and static network settings for IPv4 and filter packets, Review file system management concepts, removable media and configure NFS shares with AutoFS

Detecting System Failure, Resource Failure and hardware failure on SUSE Linux platforms

Performed OS upgrades(Kernel Upgrades) for critical servers under production

Configured DNS, DHCP, NIS, NFS in Linux Servers & other Network Services as desired.

Excellent knowledge of Red Hat Enterprise Linux internals, security best-practices, performance tuning and troubleshooting

TECHNICAL PROFICIENCIES

Languages : sh/ksh, Shell scripting, python

Operating Systems : IBM AIX (5.3, 6.1, 7.1), Linux (Redhat Linux 5.x,6.x,7.x /SuSe Linux,).

Hardware : HP BladeCenter, HP BladeCenters Systems with Compaq ProLiant Servers

5500, 2500, 1600, 800, 400, 200, 300, Pentium PC.

Protocol : TCP/IP, UDP, HTTP, FTP, NIS, NFS, DNS, DHCP

Storage IBM SVC, IBM DS 4000/4800 storage subsystem, Hitachi and

EMC SAN arrays.

Databases RDBMS MS-SQL Server 2005/2000/7.0, IBM DB2, Oracle 9i & 10g,11g

Other Skills: HACMP, HMC, Open SSH, Samba, LVM

EDUCATION:

•Bachelors in Computer Science, Osmania University, INDIA

CERTIFICATIONS:

• IBM Certified System Administrator

PROFESSIONAL

Amoteks inc. May 2017 to Oct 2021 Chicago,IL

UNIX System Administrator

Responsibility:

Design, build, install and configure RedHat Enterprise Linux Servers.

Maintaining servers already installed and setup with custom builds and applications on

their network Experience in supporting Redhat Linux 5.x,6.x,7.x servers running on HP and Cisco UCS HW and installed Redhat servers using Kickstart server.

Utilize existing tools such as Nagios to Monitor resource usage

Performing updates and upgrades on the systems currently on the network for performance and

auditing purposes. Building, troubleshooting and repairing of 1000 – 2000 RedHat Enterprise Linux servers.

Administering a RedHat Enterprise Linux operating systems to be implemented on the existing networks

Red Hat Satellite redesign and integration

Troubleshooting and Trouble Analysis of operating systems with signs of degradation in resources and performance.

Optimize systems for best performance, to achieve the lowest possible latency

Experience with RedHat Linux 6.x,7.x Administration, installation, products and troubleshooting’

Manage file systems using Logical Volume Management, Resize file systems and protect them with LVM Snapshots

•

IBM, Dubuque IA Oct 2015 to April 2017

Sr. UNIX Systems Administrator

Maintaining servers already installed and setup with custom builds and applications on their networks.

Design, build, install and configure RedHat Enterprise Linux servers within a physical and virtual environment.

Performing updates and upgrades on the systems currently on the network for performance and auditing purposes.

Experience with RedHat Linux 5.x,6.x,7.x Administration, installation, products and troubleshooting

Installing, Configuring and Administering state of the art HP BladeCenter Systems with RedHat Enterprise Linux operating systems.

Building, troubleshooting and repairing of 4000 – 5000 RedHat Enterprise Linux servers

Kernel configuration on the operating system for optimum performance

UMMC Jackson MS May 2013 to Oct 2015

Sr. Unix Administrator

Responsibilities:

•Responsible for maintaining 950 AIX Servers and 2700 Redhat Linux Servers

•Building servers depending on the requirement of the application.

•Upgrading Technology level (TL) and upgrading and installing db2 fix pack.

•Installed Security Fixes and APAR's.

•Strong understanding of networking concepts and implementation of Linux-based infrastructure solution.

•Possess excellent knowledge of Linux.

•Used Peregrine and Service Now ticketing tool for Steady state issues.

•Used ESM (Enterprise change management) for change management.

•Running Production reediness check list on the Lpars to see if it is ready for Release.

•I supported Oracle/db2/DBA database/application.

EPRI - San Jose, CA August 2011 to May 2013

UNIX/AIX Administrator

Responsibilities:

•Responsible for Steady State Team With more than 800 servers.

•Provided 24x7 supports on shift rotation basis.

•Managed Red hat linux and VMware ESX servers.

•Extensively used LVM, created VGs, LVs, and disk mirroring.

•TL upgrades from TL03 to TL05, TL07

•Installed and configured Sudo for users to access the root privileges.

•Wrote shell scripts for automated installations, to extract logs.

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