Application Identifier Firewall Rules for Cloud Security
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Solution Overview
Problem
In virtualized environments, traditional firewall rules based on physical network locations such as IP addresses and port numbers become ineffective due to dynamic application deployment, leading to complications in location-based firewall management.
Innovation Solution
Implementing a firewall service in a cloud computing environment that uses application identifier-based rulesets instead of location-based rules, where a firewall controller provides unique application identifiers and manages rules for one or more firewalls, allowing or blocking packets based on source and destination application identifiers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional location-based firewall rules are used, then firewall management is simple in static environments, but firewall rules become ineffective and require frequent updates in virtualized environments with dynamic application deployment
Solution Approach 1:
The patent changes the identification parameter from static location-based identifiers (IP addresses, port numbers) to dynamic application-based identifiers. This allows firewall rules to remain effective despite changes in application location, as the rules now track applications rather than fixed network positions.
Solution Approach 2:
The patent introduces an application identifier as an intermediary between the application and the firewall system. This identifier acts as a stable reference that connects the dynamic application instance to the static firewall rule set, allowing the firewall to manage traffic based on application identity rather than transient location.
2Adaptability or versatility
If application identifier-based rules are implemented, then firewall adaptability improves in virtualized environments, but system complexity increases due to application verification and identifier management
Solution Approach 1:
The patent implements a self-service mechanism where applications automatically obtain application identifiers and register themselves with the firewall system. This automation reduces the manual complexity of tracking and managing application identifiers, as the system handles the verification and assignment processes without extensive human intervention.
3Ease of operation
If location-based firewall rules are used, then rule implementation is straightforward, but frequent rule updates are required as applications move between locations
Solution Approach 1:
The patent performs preliminary action by assigning application identifiers to applications before they are deployed or moved. This pre-assignment ensures that firewall rules can be configured once based on application identity and will remain valid regardless of future location changes, eliminating the need for frequent rule updates.
Data Source
AI summary
A firewall service for a cloud computing environment is described that uses an application identifier-based ruleset to process data packets. An application identifier-based rule may provide an action to be taken on a received packet based on the source application identifier, the destination application identifier, and/or an identification token associated with the source application. A firewall controller may verify applications of the computing environment, provide unique application identifiers, and manage the application identifier rules for one or more firewalls of the computing environments.