NELSON GNANA ARUL
Wintel Administrator
Summary
Professional with strong background in systems administration, specializing in Windows Server environments. Demonstrates solid track record of optimizing server performance, ensuring network security, and managing system upgrades. Known for collaborative approach and adaptability, consistently delivering reliable and effective solutions to meet evolving organizational needs. Skilled in Active Directory and virtualization technologies.
Overview
8
8
years of professional experience
2
2
Certificates
Work History
Wintel Administrator
SCORG International Consulting Pvt Ltd (Cognizant)
12.2022 - Current
SAT Software and Infrastructure Private Limited
01.2018 - 11.2022
- Windows 2012 & 2016/ 2019 Server Administration
- Building windows servers Physical & VM.
- Windows hardening by fixing windows Vulnerabilities and security Compliance.
- Working with the vendor for any H/W failure.
- Installation & Configuration of Servers & monitoring them such as AD, DHCP, DNS, Fileserver, Web Server, FTP server.
- Creating User Accounts and apply for permission through Group Policy
- Assigning Disk Quota limit & providing a resource as per requirement and giving access right & permission to shared resources
- Mirroring & RAID 5 technology used in case of failure of physical server HDD
- Hardening of Windows servers through Group Policy.
- Monitoring Event’s logs for servers.
- Taking regular backup of Active Directory.
- Applying Microsoft security patches through Shavlik netcheck, Wsus Offline.
- Hardware Support for Servers
- Working on Incident, Problem and Change management tickets and following standard operation procedures (ITIL)
- Working on Acceptance into servers (AIS) servers, Monitoring ticketing tool (Service now, Triole HPSM)
- Raising Change Request and attending Change Call in CAB meeting.
- Supporting day to day activities, Providing RCA.
- Expert in Troubleshooting, configuring & managing Active Directory DS, DFS (DFSR and DFSN), AD FS & AD CS
- Strong knowledge of AD FSMO roles and Functional level
- Plan, design, troubleshoot DNS, DHCP, and Group Policies
- Windows Performance Tuning and troubleshooting
- Configure and Manage AD DS Sites and Replication
- Implement and Administer AD LDS
- Hands-on knowledge in various recovery scenarios of AD, DNS, DHCP, Clusters
- Configure DR for Windows Server Roles and Features
- Knowledge on recovering of AD & various Windows roles and features
- Expert in Terminal Server / RDS, IIS administration
- Strong knowledge of User Profile Management and clientside caching
- Expert in troubleshooting Windows Failover Clusters issues.
- Expert knowledge on troubleshooting Operating system Boot issues, Operating system recovery issues, Cluster issues
- Knowledge on OEM hardware (DELL/HP/IBM), & remote connectivity tools (e.g.: KVM, ILO, DRAC, RSA)
- Expert in Windows System Administration & Window Failover/Geo Cluster, RAID management
- Strong Knowledge of Windows Registry, including knowledge of the modifying system, Windows Patch Management, File & Print Server Management, DFSN, and DFSR
- Good knowledge on PowerShell scripting
- Working converged infra like, Cisco UCS and Nutanix
- Configuration and Administration VMware vSphere 6.7 and ESX 6.5, 6.7
- Good experience on various Wintel services like AD, DHCP, DNS, WINS, RAID.
- Following the ITIL process in various operations like Incident management, change management, problem management
- Installing, configuration and maintenance of windows2008/2008R2 and 2012R2
- Installing, configuring, and troubleshooting AD, DNS, and DHCP.
- Creating and Managing Users and Groups
- Configuring and Managing Remote Installation Services (RIS).
- Experience in the administration of Active Directory for users and computers.
- Configuring user administration like adding, deleting and modifying user accounts
- Managing security using Group Policies.
- Good knowledge of different types of RAID as per the requirement.
- Installing services patches, server patches, and antivirus.
- Preparing daily checklists updating management.
- Monitoring, managing, and reporting daily weekly and monthly server status.
- Scheduling backups and restoring backups as on required.
- Assigning rights and privileges to users to access files and folder
- Installation, Configuration, Administration and Troubleshooting of ESX, Virtual Center, VI Client.
- Creating and Managing Virtual Machines and Templates.
- Creating Clusters for High Availability (HA) and Distributive Resource Scheduling (DRS).
- Configured Resource Pool, Motion, Alerts, Alarms.
- Part of the migration team Doing P2V and V2V conversions by using VMware Converter.
- Moving VMs from one LUN to another LUN using Storage VMotion.
- Migrating of using VMotion Performing Snapshots, Cloning, Cold Migrations, and Hot Migrations.
- Installing and configuring ESX servers.
- Installing, configuring, and managing virtual infrastructure and virtual center.
- Creating and managing resource pools and adding the VM’s into resource pools.
- Creating and managing virtual machines and installing VM Tools into VM’s.
- Manage V M’s using VMware virtual center.
- Managing VM’s through web access.
- Installation and configuration of virtual machines in an enterprise SAN and NAS environment.
- Security hardening and Monitoring of VM’s & ESX servers (CPU, Memory, Disk, Network Utilization) for Security Compliance.
- Creating and managing the VM Ware cluster. Enabling HA and DRS features in a cluster.
- Configurations of Virtual switches and network connections.
- P2V and V2V conversions by using VMware Converter
- Performing Snapshots, Cloning, cold migrations, and hot migrations.
- Creating templates from VM’s and deploy VM’s from templates and allocate resources
- Creating duplicate VM’s using cloning technology.
- Moving VM’s from one LUN to another LUN using Storage VMotion.
- Moving physical machine to virtual machine using p2v converter.
- Installing, configuring, and troubleshooting AD, DNS, and DHCP.
- Creating and Managing Users and Groups
- Experience in the administration of Active Directory for users and computers.
- Configuring user administration like adding, deleting and modifying user accounts
- Managing security using Group Policies.
- Good knowledge of different types of RAID as per the requirement.
- Installing services patches, server patches, and antivirus.
- Setting up user accounts, permissions, and passwords.
- Design and Implement Azure App Service Apps
- Create and Manage Azure Resource Manager Virtual Machines
Education
M.E - CAD/CAM Engineering
JJ College of Engineering And Technology
06-2015
B.E - Mechanical Engineering
Trichy Engineering College
05-2013
Certification
Azure Administrator Associate
Timeline
Wintel Administrator
SCORG International Consulting Pvt Ltd (Cognizant)
12.2022 - Current
SAT Software and Infrastructure Private Limited
01.2018 - 11.2022
M.E - CAD/CAM Engineering
JJ College of Engineering And Technology
B.E - Mechanical Engineering
Trichy Engineering College
Declaration
I hereby declare that the information provided above is true and correct to the best of my knowledge and belief.