🔗 Communication Protocols

Advanced communication infrastructure enabling secure, real-time, and reliable data exchange

🌐 WebSocket Real-time

Bidirectional real-time communication with persistent connections, automatic reconnection, and message queuing

🚀 REST API

High-performance RESTful endpoints with OpenAPI documentation, request validation, and comprehensive error handling

🔐 mTLS Security

Mutual TLS encryption with X.509 certificates ensuring end-to-end security and client authentication

📡 Message Queuing

Persistent message queuing with automatic retry logic, delivery guarantees, and connection health monitoring

🏗️ Protocol Architecture

SysManage implements a multi-layer communication architecture designed for reliability, security, and performance.

🔐 Security Layer (TLS 1.3)

Mutual TLS Encryption: All communications are secured using TLS 1.3 with mutual authentication. Both server and agents present X.509 certificates for verification, ensuring secure identity verification and encrypted data transmission.

🌐 Application Layer (WebSocket/HTTP)

Dual Protocol Support: WebSocket connections for real-time bidirectional communication and HTTP/REST for request-response operations. WebSocket provides persistent connections for immediate command execution and status updates.

📨 Message Layer (JSON)

Structured Messaging: JSON-based message format with typed schemas, message IDs, timestamps, and operation metadata. Supports command messages, response messages, status updates, and error notifications.

🔄 Reliability Layer

Delivery Guarantees: Persistent message queuing with automatic retry logic, exponential backoff, and dead letter queues. Connection health monitoring with automatic reconnection and message persistence during disconnections.

🔄 Message Flow Sequence

Typical Command Execution Flow

User Initiates Action

User triggers operation through React frontend interface

REST API Validation

FastAPI validates request, authenticates user, and authorizes operation

Message Creation

Server creates structured command message with unique ID and timestamps

WebSocket Transmission

Message sent to target agent via persistent WebSocket connection

Agent Processing

Agent receives, validates, and executes command on target system

Result Transmission

Agent sends execution results and status updates back to server

Real-time UI Update

Frontend receives live updates via WebSocket and updates user interface

🚀 Protocol Features

⚡

High Performance

Optimized for low latency with connection pooling, efficient serialization, and minimal overhead protocols.

🔄

Auto Reconnection

Intelligent reconnection logic with exponential backoff, connection health monitoring, and seamless failover.

📦

Message Persistence

Persistent message queuing ensures delivery even during network interruptions or agent disconnections.

🎯

Targeted Delivery

Efficient message routing to specific hosts, host groups, or broadcast scenarios with delivery confirmation.

📊

Real-time Monitoring

Live connection status, message delivery tracking, and performance metrics with alerting capabilities.

🔍

Comprehensive Logging

Detailed audit logs for all communications, message tracking, and debugging with retention policies.

🔐 Security Implementation

Multi-Layer Security Architecture

🔐

mTLS Encryption

📜

X.509 Certificates

🔑

JWT Authentication

🛡️

Input Validation

📊

Audit Logging

⏱️

Token Expiration

💻 Implementation Examples

WebSocket Message Structure

Command Message Format

{
  "message_id": "uuid-v4",
  "timestamp": "2024-09-20T12:00:00Z",
  "message_type": "command",
  "command_type": "package_operation",
  "target_host": "host-uuid",
  "parameters": {
    "operation": "install",
    "packages": ["nginx", "curl"],
    "options": {"yes": true}
  },
  "expires_at": "2024-09-20T12:30:00Z"
}
                

REST API Endpoint

Package Management API

POST /api/hosts/{host_id}/packages/install
Content-Type: application/json
Authorization: Bearer jwt-token

{
  "packages": ["nginx", "curl"],
  "options": {"yes": true},
  "timeout": 300
}
                

Agent Response Format

Operation Result

{
  "message_id": "response-uuid",
  "original_message_id": "uuid-v4",
  "timestamp": "2024-09-20T12:05:00Z",
  "message_type": "response",
  "status": "success",
  "result": {
    "installed_packages": ["nginx", "curl"],
    "execution_time": 45.2,
    "output": "Packages installed successfully"
  }
}
                

📊 Performance Metrics

<5ms

Message Latency

10,000+

Concurrent Connections

99.99%

Message Delivery Rate

30 days

Connection Uptime

🔗 Related Documentation

🌐 WebSocket Protocol 🚀 REST API Design 🔄 Data Synchronization 📡 Message Flow Diagram 🔐 mTLS Implementation 🏗️ System Architecture