Samiur Rahman

HyperThink Systems (Doha, Qatar). Feb 2018 to Till now

Project: Ministry of Public Health.
Senior System Administrator

Responsibilities:

Active Directory 2012, Exchange 2013, VMware(ESXi 6.0/6.5/6.7), Windows(2008/2012/2016/2019), Symantec Endpoint Protection, SCCM, Nessus, ManageEngine Product

 Installing and configuring the Windows Server 2019
 Creating different types of GPO and linking to OU as per client request.
 Implement LAPS on all the Computer OU.
 Troubleshooting replication issue.
 Creating and managing different type of DNS zones as per client request.
 Managing Active Directory Services such as FSMO roles.
 FSMO Role Seize and Transfer.
 Restoring Deleted Objects through Active Directory Administrative Center.
 Managing and applying Fine-Grained Password policy on groups.
 Managing DNS Server Forward lookup, Reverse lookup zone, Standard primary, Standard Secondary Zone, conditional forwarder. Stub Zone, Roots Hints
 Configured and installed the Windows Failover Clustering on Windows Server 2016.
 Managing and assigning the permission on share folder.
 Installed the patches on windows servers and Workstations via SCCM.
 Creating Software Group and creating packages in SCCM.
 Creating Distribution point in SCCM.
 Update drivers and firmware on Dell R710/R720/R730 and Cisco UCS Servers.
 Installing printer on Print server and troubleshooting the printer related issue.
 Managing MS-Exchange 2k13 Send & Receive connector.
 Exchange Mailbox Databases creation
 Creation of Distribution Group & Query-Based Distribution Group.
 Providing Mailbox delegation Access, Enabling mail forwarding.
 Movement the mailbox from one exchange database to another exchange databases.
 Recovery of Soft deleted mailbox/disable mailbox/disconnected mailbox.
 Mail Tracking, Mails Queue Monitoring,
 Creation of mailbox and Distribution groups.
 Mail tracking on Exchange Server
 Health Checkup of Exchange 2013
 Installed and maintain ESXi 6.0\6.5\6.7 on Cisco UCS Servers.
 Upgradation of ESXi 6.0 to ESXi 6.7
 Migration of VM storage from VNX to Unity.
 Creating and Managing Virtual Machines and Templates.
 Migrated VMs across hosts within a HA cluster to perform maintenance tasks on ESXi hosts.
 Used VMware vMotion to eliminate application downtime from planned server maintenance by migrating running virtual machines between hosts.
 Configuring Clusters for High Availability (HA) and Distributed Resource Scheduler (DRS).
 Configured Resource Pool, V Motion, Alerts, Alarms, NTP.
 Creating templates, cloning VMs, resource management and monitoring, configuring VMware HA, clustering, P2V migrations
 Created clones from existing VMs (both live and powered-off)
 Performing Snapshots, Cloning, Cold Migrations and Hot Migration
 Deployed several VMs from Templates and customized their configurations as-needed.
 Upgrade the ESXi 6.0 to latest ESXi 6.7.
 Deploy the OS image through SCCM
 Installing SCCM Client using client push, Login script and Manually on SMS/SCCM
 Configure and manage software Inventory on SCCM
 Configure and manage Hardware Inventory on SCCM
 Deployment of monthly critical patch updates for Workstation using SCCM
 Troubleshooting SCCM client.
 Creating Software packages on SCCM
 Managing the SEPM and SEP Client.
 Upgrading the SEPM to the latest version.
 Remote push of SEP client to Servers and Workstation through SEPM server.
 Fetching the report on SEPM.
 Creating policy and managing SEPM Server.
 Restoring the SEPM server from backup
 Install and configured the ManageEngine product like AD Manager, AD Audit plus and Exchange Reporter plus.

Active Directory 2012, Windows, Domino Lotus Notes, Exchange 2013, Vmware, Symantec Messaging Gateway, Tivoli Storage Manager

•Creating users, security groups and OU.
•Installing a new Domain Controller 2012 to existing site and demoting the DC as per requirement.
•Creating different types of GPO and linking to OU as per client request.
•Troubleshooting replication issue.
•Creating and managing different type of DNS zones as per client request.
•Configuring and troubleshooting the issue of DHCP.
•Managing and assigning the permission on share folder.
•Updates, patching and software installations via group policies
•Installing printer on Print server and troubleshooting the printer related issue.
•User and mail group creation in Domino Lotus Notes.
•Mail tracking in Domino Lotus Notes and Symantec Messaging Gateway.
•Actively participate in migration activity from Domino Lotus Notes to Exchange 2013.
•Creating mail replica on DMZ Domino Server for Traveler(IBM verse) access.
•Troubleshooting on different type of issue in Lotus Notes client.
•Configuring DAOS and moving DAOS location to different drive.
•Configuring different types to mail rules on Lotus Notes client.
•Fixing the corruption in mailbox database.
•Recertifying the certificate of Lotus Notes user.
•Installing and reconfiguring the Lotus Notes client.
•Configuring Traveler on Android and iPhone devices.
•Creating and Managing Virtual Machines and Templates.
•Configuring Clusters for High Availability (HA) and Distributed Resource Scheduler (DRS).
•Configured Resource Pool, V Motion, Alerts, Alarms, NTP.
•Creating templates, cloning VMs, resource management and monitoring, configuring VMware HA, clustering, P2V migrations
•Migrating of Virtual Machines using V-Motion and SV-Motion.
•Performing Snapshots, Cloning, Cold Migrations and Hot Migrations.
•Installed and configured VMware VSphere 5.0 - 6.0 and the Virtual Centre Server integrating existing physical servers into virtual environment
•Carrying out server decommission for retired servers and creating VM templates for new servers.
•Convert virtual machines into OVF templates.
•Configuring the different type of policies at organization level in Symantec Messaging Gateway.
•Upgrading the latest software version of Symantec Messaging Gateway.
•Blocking bad sender domain at mail gateway.
•Releasing valid mails from Spam Quarantine.
•Tracking the mails on mail gateway.
•Troubleshooting and verifying the logs on Symantec Messaging gateway.
•Fetching the different types of reports on mail gateway.
•Troubleshooting all the escalated issue regarding desktop.
•Installing different type of software on PC as per the client request.
•Troubleshoot server hardware issues and works with service providers to facilitate repairs.
•Managing and fetched the reports on ticketing tools Manage engine.
•Fetch different type of report from the Manage Engine.
•IBM Tivoli Backup Administration for routine backups.
•Reclamation of data from one tape to another tape.
•Antivirus & File Server configuration & maintenance.
•Basic knowledge of SharePoint 2016

Exchange 2013 and Active Directory(2008 & 2012)

Managing around 2 Lakh users and Computers.
Configuring different types of policies in GPO and linking to OUs.
Creating DNS Zones as per client request.
Manual patching of Exchange and Windows Server.
Troubleshooting on Replication issue.
Creation of Mailbox, DLs and contacts
Creation of database on the Exchange server.
Configuring DAGs and adding database in it.
Having knowledge of Active Manager and File share witness
Mail tracking on Exchange Server

Exchange 2007/2010/Office O365, Active Directory(2003/2008/2012), Windows(2003/2008/2012), Vmware, Microsoft Lync 2010, BES 5.0, 10

 Managing around 1 lakh User accounts and computers
 Handling 6 forest with multiple child domain.
 Managed around 200 DCs and 100 Exchange Server
 Creation of mailbox and movement of mailbox from one store to another.
 Creation of Storage group and Database.
 Offline Defragmentation of Exchange database.
 Having knowledge of Soft Recovery of Exchange Server.
 Exchange 2007 High Availability for mailbox server(LCR, CCR, SCC & SCR).
 Upgrading of Exchange Server 2007 SP2 to SP3.
 Generation and renewal of web certificates for webmail.
 Setup of Relay and various connectors.
 Manual Patching of Exchange Server.
 Failover of Exchange clusters.
 Recovery of Mailbox.
 Installing of Exchange 2007 and 2010 and configuring of various Exchange roles.
 Mail Tracking and checking of queues on Exchange Server and Postini.
 Managing Contacts, different types of Recipient mailbox and Distribution Groups.
 Good Knowledge of BES(5.0 & 10) and BIS.
 Managing Microsoft Lync 2010 and Lync related issue.
 Basic Knowledge of O365.
 Actively participated in AD migration from 2003 to 2008 and 2008 to 2012.
 Creation of different types of GPO as per client requirements.
 Monitoring replication status of AD data across 200 Domain Controllers.
 Providing OS support to 2000 Windows server.
 Patching on Domain Controllers.
 Handling Active Directory replication issues.
 Installing new Domain Controllers and Decommissioning existing Domain Controllers.
 Creating DNS Zones as per client request.
 Creating DHCP scopes as per client requirement.
 Creating and Managing Virtual Machines and Templates.
 Configuring Clusters for High Availability (HA) and Distributive Resource Scheduling (DRS).
 Configured Resource Pool, V Motion, Alerts, Alarms, NTP.
 Performing Snapshots, Cloning, Cold Migration and Hot Migration.
 Patching activity on VMs machines.
 Monitoring windows Server through MOM/SCOM server.
 Restoration of deleted object from AD.
 Performing Stale Reconciliation of users and computers in the entire forest.
 Managing Windows NLBs
 Managing and troubleshooting Windows failover cluster
 Troubleshooting issue related with Server’s Operating System. Analyzing memory dumps.
 Implementing Conditional forwarders, Stub zones, Secondary Zones as per client requirement
 Managing and creating of PAC files, addition of External and Internal links in the exceptions.
 Managing FTP server including SFTP and IIS FTP.
 Configuring printers on Print server and troubleshooting printer related issue.
 Creating and managing Share folder.
 Providing End User escalated support to all desktops and Laptops in infra.