# NSG Fix - Complete ✅

## All Steps Completed

### 1. Configuration Changes ✅
- ✅ Added `subnet_nsg_enabled` variable
- ✅ Added `enable_besu_rules` variable
- ✅ Made subnet NSG association conditional
- ✅ Made Besu rules conditional using dynamic blocks
- ✅ Updated `networking_admin` module configuration

### 2. Subnet NSG Removal ✅
- ✅ Manually detached via Azure CLI
- ✅ Removed from Terraform state
- ✅ Verified detached in Azure Portal

### 3. Verification ✅
- ✅ Subnet NSG: Detached
- ✅ NIC NSG: Active with correct rules
- ✅ Terraform state: Updated

## Final Configuration

### Nginx Proxy Subnet
- **Subnet NSG**: ❌ Not attached (removed)
- **NIC NSG**: ✅ Attached
- **Rules**: HTTP (80), HTTPS (443), SSH (22)

### NIC NSG Rules
| Priority | Name | Port | Protocol |
|----------|------|------|----------|
| 1000 | AllowHTTP | 80 | TCP |
| 1001 | AllowHTTPS | 443 | TCP |
| 1002 | AllowSSH | 22 | TCP |

## Changes Made

### Files Modified
1. `terraform/modules/networking-vm/main.tf`
   - Conditional subnet NSG association
   - Dynamic Besu rules

2. `terraform/modules/networking-vm/variables.tf`
   - Added `subnet_nsg_enabled` variable
   - Added `enable_besu_rules` variable

3. `terraform/phases/phase1/phase1-main.tf`
   - Updated `networking_admin` module:
     - `subnet_nsg_enabled = false`
     - `enable_besu_rules = false`

### Azure Resources
- ✅ Subnet NSG association removed
- ✅ NIC NSG remains active

## Result

✅ **All objectives achieved:**
- Subnet NSG removed from Nginx subnet
- P2P/RPC/Metrics rules removed
- NIC NSG has correct rules
- Configuration is clean and correct

---

**Status**: ✅ **COMPLETE**

All changes have been successfully applied. The Nginx proxy now uses only the NIC-level NSG with correct rules (HTTP/HTTPS/SSH), and the subnet NSG with unnecessary Besu rules has been removed.

