# Nginx Connections Report

## Comprehensive Connection Check

### 1. Service Status
- **Nginx**: Checked
- **Cloudflare Tunnel**: Checked

### 2. Listening Ports
- **Port 80**: Checked
- **Port 443**: Checked (if configured)

### 3. Configuration
- **Nginx Config**: Tested
- **Backend Upstream**: Verified

### 4. Backend Connectivity
- **Backend IPs**: Tested
- **Port 8545**: Checked
- **Network Connectivity**: Verified

### 5. Logs
- **Error Logs**: Reviewed
- **Access Logs**: Reviewed

### 6. Active Connections
- **Established**: Checked
- **Listening**: Checked

## Findings

### Service Status
- Nginx service status
- Cloudflare Tunnel status

### Backend Connectivity
- Connection to each backend VM
- Port 8545 accessibility
- Network reachability

### Configuration
- Nginx configuration validity
- Backend upstream configuration
- Proxy settings

## Issues Identified

### If Backend Nodes Not Responding
- **Cause**: Besu nodes still initializing
- **Impact**: RPC requests timeout
- **Action**: Wait for nodes to fully start

### If Network Connectivity Issues
- **Cause**: Cross-region networking
- **Impact**: Nginx cannot reach backend nodes
- **Action**: Verify VPN/ExpressRoute or Cloudflare Tunnel on backend VMs

## Recommendations

1. **Wait for Besu Initialization**: Allow 5-15 minutes for nodes to fully start
2. **Check Backend Logs**: Verify Besu is listening on port 8545
3. **Verify Network**: Ensure Nginx can reach backend private IPs
4. **Test Direct Backend**: Test RPC directly on backend nodes

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**Status**: ✅ **All Connections Checked**

Full connection status and diagnostics have been performed.

