Numan M Khan

[pic]

acokb4@r.postjobfree.com

Sr Linux System Administration

Professional Experience/ Summary

. 8+ years in System Administration, Unix/Red Hat, SUSE Linux, Solaris,

and AIX.

. Experience doing server Build on Red Hat Linux, SUSE Linux which

includes Installing, Upgrading, Patching, Configuring and Performance

tuning on UNIX/Linux system software and hardware.

. Experience building Hadoop clusters on Dell, HP Servers using cloudera

manager, Horton Works.

. Experience in designing, managing, and supporting HP Blades, Dell

PowerEdge, Sun Sparc Servers.

. Design, install, and configure VMware vSphere5.5, ESXi5.5, VMM, Hyper-

V, and environments with Virtual Center management, Consolidated

Backup, DRS, and HA.

. Design, implement, and create LUN's using EMC Navisphere on EMC

CLARiiON hardware.

. Demonstrated ability to work well with a wide variety of people at

various levels, faster Cooperation and Collaboration among

individuals in the work unit, help team resolve conflicts

constructively and ability and Willingness to communicate when help is

needed.

. Experience in Networking configuration & Security Configuration on

ESXi Host.

. Experience in Kick start installations using PXE with NFS, HTTP and

FTP protocols to deploy.

. Expert in daily management and configuration of Nagios Monitoring

Servers.

. Experienced in various Operating Systems: Windows NT, XP, 2000, 2003,

2008,2012R2, Red Hat Linux, Suse Linux, CentOS and Ubuntu.

. Experience with working in Production, Development and QA environment.

. Experience in RAID configuration and redudancy.

. Expert in setting up SSH, SCP, Sftp connectivity between hosts.

. Experienced in DHCP, DNS, NIS, NFS, SMTP, IMAP, ODBC, FTP, TCP/IP,

LAN, WAN, LDAP, KERBEROS remote access, security management, and

system troubleshooting skills.

. Strong in LVM (Storage Methodology), Performance monitoring, Error

logging, Diagnostics, Fine-tuning and Backup management

. Team player with excellent communication and inter-personal skills.

. Worked on Version control Systems IBM clearcase, SVN,GIT .

. Worked on Nutanix an Enterprise Virtualization and storage.

. Capable of quickly learning and delivering solutions as an individual

and as part of a team.

Technical Skills:

. Operating Systems: (Red hat5.5,6/SUSE Linux 10,11

sp2,sp3),Centos,AIX5,6,Solaris 11,Windows 20012r2,VMware 5.5

. Hardware: IBM Blade Server HS22, Dell Power Edge Series,Cisco UCS

blade servers, HP BL460, C7000. ILO, Sunfire T2000,PureFlex.

. Application Server's: Apache, Python, DNS, NIS, NFS, MS Terminal

Server, Windows 2008 2012 r2,Active Directory, Jboss, Microsoft IIS

Server4/5, Symantec Ghost, mail server,

. Databases/ scripting: Oracle 9 10g, 11 g,bash Shell scripting, Ksh

Scripting, Perl Scripting, Html

. Storage/ Networking: EMC ISCSI SAN, FC SAN, NAS, EMC Clarrion, Cisco

Router, Cisco Catalyst Switch,Arista Switches,Netapp

. Backup/ Monitoring: Nagios Monitoring System

. Languages: C, C++, Java, J2EE

Work Experience:

Equifax, Atlanta, GA

Jan 2014 to

Present

Senior System Administrator

Responsibilities:

. Redhat Linux, Suse Linux System Administrator for a High Availability

Middleware Cycle Environment.

. Implementation of UNIX-based SUSE, Redhat Linux and AIX servers in

medium to large enterprise environment

. Worked on CA Layer 7 API installation and Configuration on Suse Linux

11 SP3.

. Worked on Building Infrastructure for Hadoop clusters on HP, Dell

Servers and provided Support.

. Worked on Nutanix an Enterprise Virtualization and storage, Created

Clould environment and build Hadoop Clusters on Virtual Servers.

. Worked on Microsoft Cloud Pilot Project which has Dell hardware,

TeraBytes of storage did Linux customization on VMM, Hyper-V,Build VM

servers, RAID configurations And providing Storage to Customer.

. Maintained the HP Blade server Hardware virtualization, Installed and

maintained the C7000 series of HP Blade enclosures.

. Collaborated with the, Hitachi, NetApp teams for the storage

requirements in Blade and Brick Hardware.

. Escalation point of contact for performance related issues on servers

and applications for the operations and engineering team.

. Worked in coordination with administrators, engineers and team leads

for designing and implementing VMware High Availability (HA) cluster

across several virtual machines and ESXi hosts.

. Ensured high efficiency and performance of virtual machines by

implementing VMware Distributed Resource Allocation (DRS) in a cluster

environment.

. Responsible for creating Virtual Templates and also Host Profiles and

use them for deploying more virtual machines and bringing in more

hosts respectively.

. Installed, configured and updated VMware Update Manager for patching

ESXi and keeping the software levels up-to-date.

. Analyze and troubleshoot on an advanced level, performance of SAN

backed VMware ESXi infrastructure to determine proper allocation of

resources to a multi-department user population with widely varying

needs.

. Creating, cloning Linux Virtual Machines, templates

using VMware Virtual Client 5.5, VMM, Hyper-V and migrating servers

between hosts.

. Configured multi-server virtual environment using VMware's ESX

product, handling many VM's. Uses consist of production servers,

utility servers, and application servers interact with the SAN team to

get the storage allocated for HP BL series and DL series of servers.

. Builds, installs and tests Windows, Linux, and VMware servers based on

requirements from Design and Architecture or established standards.

. Customize layer 2 and layer 3 networking between VMware, networking

components and storage for high availability and maximum performance.

. Support to plan and execute LAN (VLAN Management) and WAN management

activity.

. Work with engineering and application support for complex issues and

worked closely with the Firewall and Network vendors.

. Experience in Monitoring and Administering Operating Systems such as

RHEL 5,6, and Red Hat Linux Cluster Services on HP DL385/380, BL460c

and Solaris 10 SPARC Servers.

. Responsible for creating Active directory on Virtual Machines running

on Windows Server 2012r2 operating systems.

. Work with partners during change control activities to ensure smooth

migrations and implementations, including performing change tasks.

. Performing day-to-day monitoring tasks and administration

implementations while monitoring HP Service Center, and performing

RHEL LVM changes, adding Users in Active Directory and Exchange

Server.

. System Network configuration, PAM, tcp wrappers

implementation, SELinux policies, FTP server setup, OpenSSH

configuration, Digital Certificates, Define Firewall and security

requirements and policies. Coordinating with application

developers and users.

. Experience of fiber SAN/iSCSI SAN/NAS (EMC (CX30), NetApp, Dell MD3001

Dell MD 1000,) storage technology and work with SANs in RHCE

environments and troubleshooting SAN related issues and upgraded

firmware of SANs.

. Experience in configuring and deploying HP SIM agents on RHEL 5.x and

ESXi 5.5. and new builds.

. Performed TCP/IP troubleshooting on Unix/NT/Linux network.

. Create and Modify file systems, Logical Volume, Physical Volumes,

Volume Group. Migration of Logical volumes across PVs in same VG, Copy

LV's between VG's.

. Managing day-to-day operation by monitoring Enterprise Data Centers

and applications.

. Shell scripting, job automation and performance monitoring

and maintenance.

. Bash,Perl scripting for regular system automation tasks,

resource monitoring and system performance monitoring.

. Experience on End to End process including ordering hardware,

installation, configuration and decommissioning of the servers.

. Configured Squirrel Mail, NTP, YUMServer, Net Console, Syslog Server,

Clustering.

. Creating and managing Change Management tickets.

. Experience of working on high priority incident ticket (P2, P3) with

high critical deadline. Interacting directly with the client,

continuously involved in meetings.

Environment: Red Hat Linux 5/ 6, AIX 6,7, Windows 2012r2, HP ProLiant DL580

and DL380, Cisco UCS Blade servers,IBM P-Series, VMware virtualization,

VMware ESXi, SAN, VMM,Hyper-V Virtualization,Arista Switches.

PG&E, San Francisco, CA

June 2013 to Jan 2014

Senior UNIX Administrator

Responsibilities:

. Worked on OS Migrations for AIX 5.1,5.5 to 6,linux 5 to 6

Installations.

. Installed Quest software, Tripwire on 4000+ Aix Servers, SOX Servers,

Linux Server, Solaris Servers.

. Monthly Rotation Tech Lead, onCall Troubleshoot complex application

and system performance problems across multiple tiers.

. Receive escalated support tickets from tier 1, operations and tier 2

to resolve these tickets and look for root cause.

. Lead technical conference calls in outage situations, drive the

overall call, and resources to resolution.

. Deploy applications to production and confirm proper operations.

. Work with development teams to document and automate deployment

procedures for handoff to tier 1 team.

. Install and upgrade Apache versions, set up and configure Apache web

server, build rewrite rules, install and configure Apache modules.

. Applying operating system updates, patches, and configuration changes.

. Install and configure new java software such as Resin, Tomcat,

WebLogic, and WebSphere.

. Perform tuning of java applications and JVM health.

. Work with Development teams to onboard new applications, configure

monitoring, update and approve documentation and adhere to standards.

. Experience working with Akamai to load balance traffic and fail over

traffic across different data centers and content caching for all web

applications hosted through Akamai.

. Performed WebLogic Server and Portal administration tasks such as

installing, configuring, monitoring and performance tuning in both the

UNIX and Windows based platforms.

. Worked extensively on Solaris, Linux,AIX and Windows platforms for

different applications.

. Performed successful upgrades of Weblogic Upgrades to later versions

and service packs.

. Performed J2EE application deployment and administration including

WAR, and EAR files.

. Developed and maintained Shell scripts that facilitate the

Administration of BEA WebLogic Server 6.0/7.x/8.1/9.x/10.x and

WebLogic Portal 10.3.0.

. Created Managed Servers in a Cluster with round-robin algorithm for

Load Balancing.

. Maintained the applications among WebLogic run-time processes in a

cluster of application servers.

. Deployed the applications on multiple WebLogic Servers and maintained

Load balancing, high availability and fail over functionality.

. Created user roles and groups for securing the resources.

. Created and managed custom security realms and authenticator

providers.

. Involved in Performance tuning of WebLogic server with respect to

heap, threads and connection pools.

. Troubleshoot WebLogic Server connection pooling and connection manager

with Oracle, DB2; worked with DBAs in resolving issues.

. Installed and configured Sun ONE (iPlanet), Apache and IIS Web Server.

. Developed run-level scripts for automatic startup and shutdown of

Admin Server and Managed Servers.

. Created Crontab scripts for timely running jobs.

Environment: Suse Linux11 sp2,sp3,AIX,Redhat,Solaris, Windows 2012,Hyper-

V,Red Hat Linux, VMware virtualization, VMware ESXi, Centos5,6 .Windows

VMM,Hyper-V .

EchoStar, Denver, CO

Jan 2010 to May 2013

System Administrator / VMware

Responsibilities:

. REDHAT Enterprise Linux 5 Installation on HP Proliant servers using

kickstart and configuration & support for various applications run on

Linux environment.

. Installation windows AD server, Installed Weblogic.

. Supporting Solaris, Linux servers in production/stage/development

environment.

. Unix/Linux user's creation, file/dir level permissions, Sudo

permissions etc.

. Installation and creation of 9i and 10g databases for Testing,

Development and Production.

. Installation of Oracle version 10g on Solaris 10 and HP-UX11.

. Worked on Version control Systems IBM clearcase, SVN,GIT .

. Experience in Identifying performance bottlenecks on high volume

transaction systems. Analyze SQL statements, reorganize database

objects and design indexes to improve response of queries.

. Perform system trouble-shooting, performance tuning and capacity

planning.

. Use VSphere vCenter Server to monitor virtual machine resource usage.

. Applying operating system updates, patches, and configuration changes.

. Install and configure new java software such as Resin, Tomcat,

Weblogic, and Websphere.

. Perform tuning of java applications and JVM health.

. Work with Development teams to onboard new applications, configure

monitoring, update and approve documentation and adhere to standards.

. Performed WebLogic Server and Portal administration tasks such as

installing, configuring, monitoring and performance tuning in both the

UNIX and Windows based platforms.

. Worked extensively on a wide range of projects covering WebLogic

Portal, WebLogic Server, and iPlanet, Sun ONE, Apache, Wily

Introscope, JBOSS, BMC ARA and BMC Bladelogic.

. Worked extensively on Solaris, Linux and Windows platforms for

different applications.

. Worked closely with database administration staff to ensure optimal

performance of databases, and maintain development applications and

databases.

. Involved in management of 100 Server and 200 Virtual Machines.

. Shell (ksh, bash) scripting for various admin related jobs.

. EMC (LUN creation, assigning and mapping)

. Design and implement Backup Policies.

. Support to any issues coming on Linux servers and for applications,

which run on them.

. MySQL and Oracle Database installation and Monitoring on Linux using

Nagios.

. Troubleshooting all kind of apache, Tomcat and PHP issues.

. Managing volumes in Linux by LVM.

. Experience in setting Linux RedHat Cluster Suite (4 node cluster).

. Configuring and managing Cluster instances for MYSQL and Oracle

database.

. Experience in configuring LUN on EMC storage, assigning them to proper

storage group and making them visible to operating system.

. High Performance Cluster using the platform computing software using

Red Hat operating system.

. Played role as a Vmware, Solaris, and Linux Admin to provide L2

support in a complex Environment.

. Performed connection diagnostics in order to access route specifics

and diagnostics from the switching infrastructure.

. Also concerned with every day growth and Inspections to make sure

quality and goals were being met.

. Provided operational Documents to make the Environment more

convenient.

Environment :Red Hat Enterprise Server (RHEL 3, 4 and RHEL 5), HPUX-11i,

11.x, 10.x, Solaris 8, 9 and 10, EMC Powerpath, Oracle RAC, Perl scripting,

VMware ESX Server, Qlogic, Emulex, Weblogic,Jboss, HP Blade servers, EMC

and Clariion Storage

Chick- Fil- A, Atlanta, GA

Nov 2007 to Dec 2009

System Administrator

Responsibilities:

. RedHat Enterprise Linux 3/4/5, SUSE Linux, Installation on

HP Proliant servers using kickstart and configuration & support for

various applications run on Linux environment, configuration,

performance tuning, patching and maintenance.

. Supporting 300+ Linux servers in production/stage/development

environment

. Creating VMware Lab setup as per Internal QA team's requirement

using VMware ESXi servers.

. Worked on VMware Virtual Center Server for centralizing ESX and

ESXi servers.

. Day to day duties for Unix/Linux server maintenance and support to

developer's team for their issues with application, tuning,

troubleshooting, software running on Unix/Linux Servers.

. Support and troubleshooting of Linux Apache, MySQL, Have knowledge

on MySQL, Oracle Database Administration.

. Involved in 24x7 supports for both production and development

databases with on-call pager.

. Support of multi flavor UNIX environment Linux and Windows with

various responsibilities.

. Setup and configured network TCP/IP at all levels on Linux servers

. Implement the Windows Active Directory for the Domain Administer of

Win 2003 Domains.

. Deployments, Drive Application Release Task Plans, Handle

Application Outage if any Invite all team to bring the application

up and running.

. Start Stop Web logic managed servers, admin servers, Hardware

Upgrades, Find Root cause Of Outage of application and upload it in

Knowledge base. Maintain a log book for hardware and software

problems.

. Implement Root, Forest and Child Domain System with Additional

Domain Server in the different sites.

. Implement Domain Name Server by Using Primary and Secondary DNS

Servers.

. Worked on Ecommerce best practices and online marketing

methodologies.

. Configure LINUX Server as a Data Storage Server.

. Configure the Users, Global and Local Groups in the Enterprise

Server Environment with types of Permissions.

. DNS, DHCP, NFS, NIS configuration.

. Worked with object oriented software development methodologies and

practices across all phases of the Software Development Lifecycle.

. Managing with Forms Server and Excel Services.

. Unix/Linux user's creation, file/dir level permissions, Sudo

permissions etc.

. Using VM converter converting Physical machines in VMware VMs.

. Updating/patching Linux, Windows Virtual Machine in VMware clusters

. User management, security planning and implementation.

. Setup and configured network TCP/IP at all levels on LINUX servers.

. Administered and maintained Solaris server and OS for production,

Internet and intranet services.

. Interacted with the global Solaris Engineering team regularly to

understand and design solutions.

. Involved in the installation, monitoring and support of Unix

based servers, firewalls, Cisco networks, perimeter security

technologies, Internet technologies and remote office WAN/ LAN

connectivity.

Environment: Red Hat Enterprise Server (RHEL 3, 4, 5), Solaris 8, 9 and 10,

windows 2003, EMC PowerPath Perl scripting, VMware, WAN/ LAN

Verizon, India

Feb 2005 - Oct 2007

Systems Administrator

Responsibilities:

. Worked with File System includes UNIX file System, and Network file

system.

. Planning, scheduling and implementing OS patches on both Solaris &

Linux boxes as a part of proactive maintenance.

. Installation and configuration of Oracle database 8i on various OS

platforms like HP-UX, Linux, and Windows NT, 2000.

. IR management oversight(look for trends,ways to fix re-occurring

issues)

. Application Standardization activities (Apps to IT standards as

needed and as possible.Any unspecified BAU activities (COPS) as

required.

. Train T1 on application level changes, as required (i.e. if

architecture changes).

. Sharing Technical skills (as appropriate, ie weblogic overview),

Support T1 as needed in crisis.

. Responsible for configuring NFS & Autosys, Applied patches both

Server side and Client.

. Worked on setting up new environments (Development, Production

etc).

. Performed and maintained the corrupted file system, Supported with

Sybase Application.

. Responsible for scheduling jobs using crontab and at, Administering

Disks and File systems using LVM.

. Developed various Korn, Perl, bash and shell scripts to automate

tasks.

. Worked with Net stat, Prstat, Iostat monitoring commands

. Control System behavior through Boot PROM, Installed and configured

Solaris and Linux Servers.

. Worked with Logical volume Manager (LVM), Worked with Configuring

and troubleshooting NIS.

. Help and troubleshoot user accessibility problems.

. Responsible for Monitoring network statistics of various network

related data structures.

. Involved in Documentation of UNIX environment and configuration

details.

Educational Qualification:

Masters in Computer Science (Osmania University)

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