- Having total work experience of 4.3 years, in Hybrid Environment setup (On-premise to Office365), Office 365 Cloud Management, Exchange servers (2007/2010/2013),
- Active Directory (2008/2012/2016), DNS, DHCP, Group Policy, Cluster NLB, ADFS,
- Directory Sync, and IT Infrastructure Management.
- Worked as Senior Wintel Administrator for managing complex infrastructure and for handling different business- critical issues in Wintel Team
- Having great troubleshooting skills and knowledge of handling critical escalations and highest priority cases.
Professional Experience
As a Wintel AD Administrator:
- Involved in daily Performance monitoring and Active Directory troubleshooting with ability to analyze server performance and make recommendations for improvement
- Utilized AD to create users and passwords, created GPO's to OU groups as requested.
- Worked on different AD management tools, ADUC, ADMT, ADSI Edit, Change Auditor, RMAD etc.
- Resolved issues with Group Policies not correctly applying to objects within Active Directory. Implementation of security controls via Group Policies to the OUs. Installed & configured Windows 2008/2012/2016 with Active Directory service.
- Demotion and Promotion of Domain Controllers.
- Restoration of deleted IDs, finding metadata and logs. Worked on providing the root cause analysis while handling business-critical issues.
- Taking care of NLB and Failover Cluster Management requests and issues.
- Experience on Active Directory Health Check and diagnostic tools like ADRAP, dcdiag, repadmin, replmon, netdiag.
- Worked on ADMT tool for migration of users or groups from one domain to another domain.
- Managed print management including configuration and troubleshooting.
- Created PowerShell scripts and batch files to automate tasks for both imaging system and Active Directory GPOs.
- Configured and maintained DNS, DHCP, File & Print Servers. Experience in Managing ADDS, DHCP and DNS Services.
- Configured Domain Name Server (DNS) and created forward/reverse lookup zones, conditional forwarders, stub zones with associated pointer records. Configured DHCP servers and roles. Diagnosed network problems, including TCP/IP, DHCP, DNS, WINS, and routing. Manage LAN, WLAN, and VOIP DHCP scopes, creating and/or deleting leases and reservations as requested by CSAs. Developed DHCP scopes, reservations and pre-defined options for remote sites. Handled EFT servers, FTP related requests and issues. Worked on tools,e.g. Filezilla, WinSCP, etc.
As an Exchange Administrator:
- Performed Cloud Migrations in a hybrid environment as an Exchange Administrator.
- Monitoring, Reporting, Message Tracing in Exchange Online/O365 portal along with User's mailbox deletion and Restoration. Creation of Mailboxes, movement of mailboxes from one store to another store.
- Recovery of mailboxes. Installation of Exchange 2007 and 2010 and configuration of various exchange roles.
- Tracking mails on O365 Portal or,premise exchange server or, Symantec Gateway.
- Troubleshoot on mail sending issues, Outlook, and calendar access issues, OWA application issues.
- Managed secondary email addresses, mail sending rights, mailbox size enhancement, email forwarding related requests.
- Configuration of Directory Synchronization and handled various users' attribute management issues.
- Creation of storage groups and databases.
- Worked on application-message labs to allow or restrict different domains on Symantec Gateway.
- Being a Vulnerability SPOC, I worked on remediation of different vulnerabilities, e.g. Meltdown Spectre, MS15-11, 124, MS Hardening, updating MS monthly Security patching, remediation of Delliote vulnerability, etc. on Domain controllers and exchange servers.