Desktop Support System Administrator

Fayaz Rehman 848-***-**** (Cell)

*** ***** ****** 732-***-**** (Home)

Iselin NJ 08830 ******@*******.***

PROFESSIONAL SUMMARY

System Administrator offering 10+ years of experience in Red Hat Enterprise Linux operating system 6/7 environment for L2/L3 support, VMware ESXi, KVM virtualization, openstack, AWS EC2, installation/configuring/monitoring of CMS Applications for Apache/Tomcat in public/private cloud environment, troubleshoot, design, implementation, technical support in Systems & Network Administration in designing solutions for applications, databases, disaster recovery and datacenter migrations.

TECHNICAL SKILLS AND KNOWLEDGEBASE

Cloud Computing, public/private/hybrid cloud, AWS EC2, openstack RDO packstack, building customized openstack images in raw and qcow2 format

Clustering & Bonding: NIC bonding, VMware clustering

Configuration Mangement Tools: Puppet, Chef ( Installation )

Data Storage & Sharing: EMC, Hitachi, IBM san storage, VMware ESXi data storage, FreeNAS & Openfiler for iSCISI, NDAS, NAS, SAN, LUNs, Samba, NFS, CIFS

Docker Container, swarm, kubernetes clustering

Databases: MySQL, MariaDB and Postgres, Oracle

Imaging and Cloning: Kickstart, PXE boot,, Golden Images, openstack qcow2, ESXi Templates & Cobbler

Kernel Management: Kernel upgrade/update, kernel tuning & kernel panic

Load balancer: Inexpensive software based Apache Load balancer for high availability

Operating Systems: Red Hat Enterprise Linux 6/7, Red Hat Enterprise/Satellite, Fedora, CentOS 6/7, Debian 7, Ubuntu, SUSE, SLES 12,Windows XP/2000/vista/7/8/10 and 2003/2008 R2 Enterprise servers

Programming Languages: php, HTML, CSS, Bat/Bash/shell Scripting

Remote Server Management Tools: iLO for HP, iDRAC for Dell, UCS Manager for Cisco, etc

Security & Permissions: Users/groups/files/ports permission through iptables/firewalls, SELinux ACLs

SSL (Secure Sockets Layer: Public and private ssl certificates for https

Session Replication: Session replication along with stickiness and cookies enabled

Server & Network Monitoring: CWP, EHCP, ispconfig, Wireshark, tcpdump, htop, ntop, Nagios, Zabbix

Support services: BIND, DNS, DHCP, LDAP, LAMP, NTP, squid proxy server

Virtualization & Hypervisors: Oracle VirtualBox for Windows/Linux, Xen Citrix, ESXi 5.5 hypervisor, vSphere, vCenter, Hyper- V, and KVM

Webapps/Middleware: Tomcat, IBM websphere, Oracle weblogic, nginx web application server

Webservers: apache, nginx

Hardware:

Intel 64 bit Dual/Quad core processor with vmx technology, AMD 64bit Duo/Quad Core with svm technology, Xeon octa core, Cisco UCS blade servers, HP Proliant 360 G4, 380 G6 & G7Rack servers. SPARC servers, Dell Power Edge, ASUS servers, Network printers, Cubox Arm7 processor. IBM Blade Center, Cisco switch catalyst 2950, IBM San Switch 3435, IBM FastT200 San Storage, HP Printers, Linksys/cisco/Zyxel Switches/routers DSL/Cable modems, Cisco Small Business with VPN Wireless router, IBM & compatibles Dell/HP desktops and laptops. PCI, PCI-e1 & 2 NIC cards, 10GbE, HBA Qlogic, CAT5e & 6 straight and cross over patch cables, Fiber optics LC-LC cables..

PROFESSIONAL EXPERIENCE

Leeds LLc, New Jersey USA

Linux System Administrator May 2017 – Sep 2017 )

Actively engaged with Web developer team, providing continuous support for Linux/Windows environment for the deployment of Java-script base applications. Setup and optimize SLES 12 Linux Dev and Prod servers on IBM main frame s390x series.

Installed, configured and documented Apache Load Balancer for high availability on SLES 12 on both wings of IBM main frame accessing though VIP. Installed and configured Apache Tomcat 7/8 as a middleware Application server for Java-script based Applications accessible though load balancer.

Setup session replication along with stickiness enabling cookies to replicate the live session on a two node cluster based architecture. Setup a secure https protocol using public and private ssl certificates for both Enforcing and Enabled modes. Installed and configured webfocus as reporting servers on SLES 12.

Installed Apache Tomcat 8, webfocus 8.2 on AZURE Windows 2012 in UAT and STG environment.

Installed and configured SQL 14 as a centralized database server for Java-script based Applications. Trouble shoot and tweak the Dev and Prod Linux servers in collaboration with web developers to optimize the applications.

JPMorgan Chase & Co., New Jersey USA

Linux System Administrator (Sep 2016 – Feb 2017 )

Worked as a Linux/Unix System Administrator with GTI GBI group rendering L2/L3 support for PRE- PROD RHEL 6/7 servers using ITPAM ticketing systems. This included direct interaction with our valuable clients through emails, live chat/conference calls and presentations for high quality and customer satisfaction services.

Responsible for resolving tickets related to mount points (NAS and SAN), creating/modifying/updating File Systems using LVM ( vg-root and vg-data) modifying fstab for permanent changes, adding users and groups, file/folder permissions on customer’s request. Copy/move/rename/delete files/folders on demand.

Optimizing system performance and kernel tuning for data bases (Oracle, Sybase and DB2) in collaboration with DB teams and setting/making changes in sysctl.conf and limit.conf for ulimits, huge pages and meminfo etc. Installation of Oracle database and client using cfengine.

Installation of rpm packages from local yum repositories on customer’s request following in-house SOPs. Installation of jdk and setting up local path/environment for Application Developers.

Bash scripting for semi-automation for repeated tasks on a number of servers for information retrieval and modifications. scp, tar, postfix, fdisk, xterm/X11, tzone, lvcreate, lvextend, etc

OS build post fixes/troubleshooting through iLO for HP, iDRAC for Dell and UCS Manager for Cisco staging Servers all that returned back from QC checks.

Infocube Services Inc., New Jersey USA

Linux System Administrator (Jan 2015 – Aug 2016 )

Responsible for installing, configuring and deploying Red Hat Enterprise Linux Enterprise servers as per customers need basis. Remotely customized Solutions/Trouble shooting of Red Hat Enterprise Linux Enterprise servers for data transfer, security, LVM, NIC bonding, Domain Name Resolution and Networking issues, etc.

Setup and maintain AWS EC2 load balance instances for HTTP access for Apache/Tomcat Java web based application server as per customer’s business requirements.

Installed, configure and trouble shoot bare metal virtulization using VMware EXSi & Xen Citrix hypervisors for Red Hat Enterprise Linux Enterprise sequential servers and instances for high availability and 24/7 production support. Oracle virtualBox and VMware vitalization for Testing and Training purposes.

Participated in obtaining Gold Partnership with Health Fusion for installation/configuration/trouble shooting Meditouch EHR end user cloud based Medical Health Record application.

Worked on data storage and data backups assignments under highly secure environments related to disaster recovery planning and implementation for future in enterprise environment. This includes 10GbE and SAN fiber optics installation and configurations in Red Hat Enterprise Linux Enterprise Networking environments.

Installation, configuring, trouble shooting HP Proliant (DL380 G6) servers for virtulization using VMWARE ESXi 4.1, 5.1 and 5.5 for multiple servers for testing, development, clustering, etc.

Customizing, monitoring and upgrading Firmware of iLO 2 for better performance by installing Licensing Keys for better performance and management.

Installation, configuring, upgrading firmware and monitoring Cisco catalyst 2950 for local area network.

Installation, configuring, upgrading firmware and monitoring IBM SAN 3534 Fabric Switch for storage and data store on local area network.

Installed configure Cisco UCS blade servers 5000 series for virtulization using bare metal ESXi 5.1 as per customer’s request.

Developed, maintained company’s website in php, html and CSS, setup and configured Wordpress sites.

Build a private openstack cloud on two nodes using RDO packstack and deployed customized instances for development and testing purpose. Setup a physical testing rig for building customized openstack images in qcow2 format of debian, SUSE, ubuntu, CentOS and RHEL 6/7 flavors.

Alpha Omega Technologies Inc., New Jersey USA

Linux Systems Administrator (Sept 2012 –Dec 2014)

Installed, configure and deploy Red Hat Linux servers as per various business requirements. This included building the base machine creating files system and logical volume manager (LVM) on the assigned LUNs, configure NIC bonding, post configuration, DHCP, FTP, Networking, DNS, etc.

Led Red Hat Enterprise Virtualization deployment and providing disaster recovery effort for the Linux environment, including building ESXi 4.1 bare metal virtualization. Creating Red Hat Linux Enterprise instances with pre/post configuration and setting up high availability procedures.

Installed, configured, and troubleshoot Windows Server 2003. Managed user accounts, groups, print queues and controlling access rights using Active Directory and implemented a printing solution that includes Xerox multi-functional copier, printers and scanners.

Cron jobs for resource monitoring using bash scripts for network/disk space issues and sending email alerts using mailx.

Configured and setup local/internet vsftp server for shared documentations upload/download for internal and external use.

Setup DNS server for local Domain Name Resolution on Red Hat Enterprise Linux using bind.

Assigning storage deploying NDAS and NAS for high demand data storage.

Setup freeNAS server for iSCSI storage for warehouse data base and backups.

AmSpec Services LLc Linden, New Jersey USA

Systems Administrator (Oct 2001 – Jan 2011)

Installed, configured and deploy Red Hat Enterprise Linux & Windows 2008 R2 Enterprise base servers on vmware Esxi 4.1 hypervisor as well as on physical machines for web/net applications including apache ftp, NFS, Samba, file sharing/storage, active directory, DHCP, DNS, networking and backups on RIAD 1. Responsible for 24/7 trouble shooting and optimization of Linux and Windows systems.

Setup cron jobs using bash scripts for daily cleanup, rotate logs, disk space management, swap cache memory, load balance and performance tasks. Managed user/groups permissions and file/folder access for internal security. Applied SELinux booleans and sticky bits to file/folders owned by purchase/accounts department for security purpose.

Upgraded and migrated applications/data from Red Hat Linux 5 to Red Hat Enterprise Linux systems on 64bit machines for better results and performance. This included, tuning and tweaking of existing conf files of web applications and related software. Introduced ldap server and transferred all user accounts from Windows 2003 active directory to ldap server.

Installed, configured, and troubleshoot Windows Server 2003. Implemented and managed IP Addressing; configured TCP/IP addressing on Windows 2003 server Migrated Windows Server 2003 from test environment to the production environment

Supported a WAN network for data sharing/exchange among 10 business offices across the country using third party LIMS system. Maintained and configured Red Hat Enterprise Linux servers on WAN network to centralize LIMS database for 24/7 production. Installed LIMS system for the successful acquisition of ISO 9001 certification

Task included: Responsible for troubleshooting and assisting employee’s laptops/desktops and peripherals within LAN/WAN connectivity using CISCO routers, switches. Mapping of shared folders on LAN and as well on internet using VPN connections for remote access data recovery and data management on backup server using backup/Ghost software. Dealt with Remedy/Ticketing of production issues. Windows remote assistance/troubleshoot and application support.

Desktop support and trouble shoot company’s IT issues and direct interaction with vendors for market analysis and peripheral updates. Installed, configured and maintained NDAS, Access Point, Wi-Fi, Linksys Cable/DSL Router and CISCO router/switches

Patching, Disk replacements/mirroring using RAID, add static routes, DNS changes, Web server issues, redirects, nfs, certificate installations, performance tuning, monitoring, Linux LVM related, shared memory, NTP, swap, system crash, security vulnerability problems.

Collaborated and monitored voip installation to saved costs for the multiple departments.

Upgraded storage foundation from samba to Windows 2003 file server

Writing bash scripts for daily housekeeping to automate cron jobs for services start and stop, cpu usage, rotate log files.

Implemented TCP/IP network based on DHCP, DNS on Windows NT. Installation of Primary and Backup domains and planned disaster data recovery procedures.

Configured users PC and laptops for remote access via. Secure ID using VPN and dial-up.

ANA Laboratories INC, Bellmawr, New Jersey USA

IT System Support (May 2000 – Mar 2001)

Installed, configured and maintained Red Hat Linux based file server for 24/7 production and data sharing.

Worked as IT Support/Computer/Network, desktop support, computer installation, networking, and maintenance, troubleshooting, and developing small utility programs.

Responsible for generating monthly invoices with back history for more than 12,000 samples using dBase IV quires and printouts. Developed, modified improved dBase IV data structure to overcome the 10,000 sample barrier per month.

Used Red Hat Linux as file server for data handling, data interpretation, data base management, queries and reports using dbase IV. Worked on Novell Netware for networking and data communication.

Replaced Red Hat with Windows 2000 server for networking and data communication. Replaced BNC cards to NIC Ethernet cards using CAT 5e LAN cables.

Setup, configured, ftp server and gave remote access to valuable customers for online results and reports.

Performed preventative maintenance on server and desktop machines, deliver, set up, and remotely assisted end-user PC desktop hardware, software, and peripherals.

Interacted with the System Support, Network, Telecomm and Programming groups within Information Systems for the resolution of problems, planning of upgrades, implementation of hardware and networking platforms. Cleaned up, facilitated and recommended process solutions; efforts eliminated redundant work.

Planned and executed for disaster data recovery procedures.

Assisted users over the telephone with Dial up services, password resets, file associations and conversions, drive mappings; MS office applications, desktop configurations and MS exchange related issues.

Installed, configure, troubleshoot and support various software packages and provided desktop support to all users.

Created, modified, delete and migrated user profiles and mailboxes using Exchange Server 5.0.

Created, modified, deleted and migrated user Linux accounts and configure printers for Windows users.

EDUCATION

Science degree, The University of Liverpool, UK.

Certificate in Small Business Development & International Trading

Certificate in PHP, MySQL, Database Concept

Certificate in Programming

Certification in Red Hat Enterprise 7 System Admin – Ex200 ( in progress )

REFERENCES Can be furnished upon request.

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