Server Wake-Up Command Filtering via Health Data
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Solution Overview
Problem
Existing Wake-On-LAN systems are vulnerable to malicious attacks and unintentional repeated wake-up commands, which can damage hardware and lead to data corruption or increased downtime, especially when servers are in unhealthy states.
Innovation Solution
A controller within a server receives system health data and network wake-up commands, determining whether to wake up the server based on this data, and logs wake-up commands to manage repeated requests, thereby filtering out potentially damaging commands and ensuring safe power cycling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the server allows repeated wake-up commands without restriction, then the Wake-On-LAN system remains simple and responsive, but hardware damage and system instability occur due to excessive power cycling
Solution Approach 1:
The controller performs preliminary checks of system health data and event logs before executing the wake-up command. It proactively identifies unhealthy states (malfunctioning fans, PSU voltage issues) and prevents wake-up commands from being processed when conditions are unsafe, rather than reacting after damage occurs.
Solution Approach 2:
The controller acts as an intermediary between the network interface controller and the power management system. It receives wake-up commands from the network, evaluates system health status, and mediates whether the command should be forwarded to power on the system, thereby filtering out harmful commands before they can cause damage.
2Reliability
If the server wakes up immediately upon receiving a wake-up command, then the Wake-On-LAN response time is minimized, but system security is compromised against malicious attacks and unintentional repeated wake-ups
Solution Approach 1:
The controller implements feedback mechanisms by continuously monitoring system health data and event logs, and using this information to make real-time decisions about wake-up command processing. The system feedback loop evaluates current system state against safety criteria before allowing wake-up, dynamically adjusting responsiveness based on system conditions.
Solution Approach 2:
The controller applies preliminary anti-action by pre-evaluating system health status and blocking potentially harmful wake-up commands before they can execute. It proactively identifies and prevents malicious or unintentional repeated wake-up attempts by checking event logs for patterns of repeated commands and verifying system health before processing.
3Object-affected harmful factors
If the server monitors system health data and logs event records to filter wake-up commands, then protection against malicious attacks is improved, but the processing overhead and system complexity increase
Solution Approach 1:
The controller performs self-service by autonomously monitoring its own system health data and event logs, and independently making decisions about which wake-up commands to process. The system self-evaluates its state and self-protects against harmful commands without requiring external intervention or complex external validation systems.
Data Source
AI summary
A method for managing network wake-up commands by a controller of a server includes receiving a system health data. The method includes receiving a network wake-up command from a network interface controller of the server. The method further includes the determining whether to wake-up the server based on the system health data to yield a determination, and commanding the server to wake-up, when the determination is to wake-up the server.