Azure Bastion and Just-In-Time (JIT)

Azure Bastion:
Pros:
Easy Access: Azure Bastion provides a web-based interface for accessing virtual machines (VMs) directly through the Azure portal. No need for a separate Remote Desktop Connection.
Secure Connectivity: It establishes an SSH/RDP session over SSL without exposing VMs to the public internet.
No Public IP or VPN: Bastion eliminates the need for a public IP address or VPN gateway for VM access.
Multi-Factor Authentication (MFA): Supports MFA for enhanced security.
Centralized Management: Bastion simplifies VM management by centralizing access.
Audit Logs: Provides detailed audit logs for access activities.
Cons:
Browser Compatibility: Bastion is more compatible with Microsoft Edge but less so with other browsers like Chrome, Mozilla, or Opera.
Copy-Paste Limitations: Copy-pasting files directly into the server over the Bastion patch host is not supported. Files must be transferred via Azure Storage.

Just-In-Time (JIT) Access:
Pros:
Enhanced Security: JIT access reduces the attack surface by opening ports only when needed.
Granular Control: Allows fine-grained access to specific ports for a limited time.
Automated Rule Enforcement: JIT policies can be enforced automatically.
Audit Trail: Provides logs for tracking access requests.
Integration with Azure Security Center: JIT is part of Azure Security Center’s recommendations.

Cons:
Configuration Overhead: Setting up JIT policies requires initial configuration.
Learning Curve: Administrators need to understand and manage JIT rules effectively.
Potential Delays: If JIT access is not configured correctly, it may cause delays when accessing VMs during emergencies.
In summary, both Azure Bastion and JIT access enhance security, but they have different use cases. Bastion simplifies VM access, while JIT provides fine-tuned control over port openings. Consider your specific requirements and choose accordingly!

Let’s compare the costs of using Azure Bastion and Just-In-Time (JIT) access:

Azure Bastion:
Basic: Priced at $0.19 per hour or approximately $138.70 per month.
Standard: Priced at $0.29 per hour or approximately $211.70 per month.
Additional Standard Instance: Available at $0.14 per hour or approximately $102.20 per month.
Note that you only need one Bastion service for all peered virtual networks. Bastion is more cost-effective than manually deploying your own jump box, and it’s charged on a fixed per-hour basis, plus charges for outbound data transfers.

Just-In-Time (JIT) Access:
JIT access doesn’t have a direct cost associated with it. Instead, it enhances security by reducing the attack surface and opening ports only when needed. However, setting up JIT policies requires initial configuration and understanding of rules.
In summary, consider your specific requirements and choose the option that aligns with your security needs and budget!