🛡️Bastion

🔹 Core Concept
Azure Bastion is a fully managed Platform-as-a-Service (PaaS) solution that provides secure and seamless RDP/SSH connectivity to virtual machines directly through the Azure portal — without needing public IP addresses or exposing VMs to the internet.

🔹 Purpose
Designed to enhance network security by allowing administrators to securely manage VMs in a Virtual Network (VNet) over SSL using the Azure portal.

🔹 Browser-Based Access
Allows users to connect to Windows and Linux VMs using HTML5 in the browser — eliminating the need for remote desktop clients or VPN connections.

🔹 No Public IP Exposure
Virtual machines remain private within the VNet, preventing internet-based attacks such as port scanning and brute-force attempts.

🔹 Integration with Virtual Network
Deployed inside a subnet named “AzureBastionSubnet” within a VNet, providing seamless access to all VMs in that network.

🔹 Secure Data Path
All RDP/SSH traffic is tunneled securely through TLS (port 443) — ensuring encrypted, compliant, and firewall-friendly connections.

🔹 High Availability by Design
Azure Bastion is automatically deployed in a redundant and resilient architecture, ensuring consistent access without manual configuration for failover.

🔹 Integration with NSGs & Firewalls
Works seamlessly with Network Security Groups (NSGs) and Azure Firewall, maintaining strict network isolation and policy enforcement.

🔹 Session Management & Auditing
Supports session recording, monitoring, and integration with Azure Monitor and Activity Logs for auditing and compliance tracking.

🔹 Simplified Operations
Reduces management overhead by eliminating the need for jump servers or manually maintaining bastion hosts.