Automated Firewall Rule Generation for Multi-Tenant Cloud Isolation
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Solution Overview
Problem
In heterogeneous hybrid cloud environments, manual configuration of firewalls is required to manage access rules, leading to inefficiencies and challenges in automating the creation of a whitelist of allowed rules for secure interconnectivity between different cloud systems while maintaining tenant isolation.
Innovation Solution
An algorithmic approach to generate firewall port access rules and unique IP address ranges for each tenant, allowing only necessary traffic between compute nodes of the same tenant across different cloud providers, with automated IP address management and application of rules to ensure secure and efficient interconnectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual configuration of firewalls is used to manage access rules, then security control is maintained, but configuration efficiency and scalability deteriorate
Solution Approach 1:
The system automatically generates firewall rules based on tenant information and network policies without requiring manual configuration. The algorithm autonomously creates access rules, IP address ranges, and applies them to compute nodes, enabling the system to self-configure and scale efficiently.
Solution Approach 2:
The invention transforms manual configuration parameters into automated algorithmic parameters. By changing from manual rule entry to algorithmic generation based on input parameters (tenant ID, network policies), the system achieves automated scalability while maintaining security control.
2Productivity
If automated firewall rule generation is implemented, then configuration efficiency improves, but security control and precision deteriorate
Solution Approach 1:
The system incorporates feedback mechanisms where the generated rules are validated against security policies and tenant configurations. The algorithm receives feedback about policy constraints and adjusts rule generation to ensure precision while maintaining automation speed.
Solution Approach 2:
Security policies and access control frameworks are established in advance as input parameters. The algorithm uses these pre-defined policies to generate rules, ensuring precision is maintained from the outset while enabling rapid automated configuration.
3Reliability
If firewall rules are applied to all IP addresses, then security coverage is maximized, but system complexity and rule management difficulty increase
Solution Approach 1:
The system segments IP addresses into tenant-specific ranges and applies firewall rules at the tenant level rather than managing individual address rules. This segmentation reduces rule management complexity while maintaining comprehensive security coverage through automated tenant-based rule generation.
Data Source
AI summary
A method includes generating firewall port access rules between a first cloud system a second cloud system for each tenant of a plurality of tenants. A unique IP address range is generated for each tenant. The firewall port access rules are applied to each IP address.