Nishan Rajmulik

Hybrid AD + Microsoft XDR + Sentinel Detection Lab

Built a hybrid identity security lab integrating on-prem Active Directory with Entra ID, Defender XDR, and Microsoft Sentinel to detect credential dumping and identity-based attacks.

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Microsoft Hybrid Active Directory

On-prem Active Directory synchronised with Microsoft Entra ID (Azure AD) using Azure AD Connect.

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Azure JumpServer Architecture

Deployed a secure JumpServer to access private VMs, reducing cost and exposure of public IPs.

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Azure VNet Peering (Multi-Region)

Enabled cross-region connectivity between Azure VNets using VNet Peering.

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Microsoft Azure – General Labs

Managed Azure VMs, configured networking, and used RDP & Bastion for secure access.

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CCNA LAB – Enterprise Network

Designed VLANs, OSPF, EtherChannel, HSRP, and core-access switch topology with configs.

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CCNA Real Lab – Head Office & Branch

Built real hardware networks, linked the head office and the branch using routing & switching.

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