# Infrastructure Fixes Applied - Summary

**Date**: December 27, 2025  
**Status**: ✅ **ALL FIXES APPLIED**

---

## ✅ Fixes Completed

### 1. DNS CNAME Records Created ✅

Created/Updated 9 DNS CNAME records pointing to Cloudflare tunnel:

| Domain | Type | Target | Proxy | Status |
|--------|------|--------|-------|--------|
| `rpc-http-pub.d-bis.org` | CNAME | `10ab22da-8ea3-4e2e-a896-27ece2211a05.cfargotunnel.com` | ✅ Proxied | ✅ Created |
| `rpc-ws-pub.d-bis.org` | CNAME | `10ab22da-8ea3-4e2e-a896-27ece2211a05.cfargotunnel.com` | ✅ Proxied | ✅ Created |
| `rpc-http-prv.d-bis.org` | CNAME | `10ab22da-8ea3-4e2e-a896-27ece2211a05.cfargotunnel.com` | ✅ Proxied | ✅ Created |
| `rpc-ws-prv.d-bis.org` | CNAME | `10ab22da-8ea3-4e2e-a896-27ece2211a05.cfargotunnel.com` | ✅ Proxied | ✅ Created |
| `dbis-admin.d-bis.org` | CNAME | `10ab22da-8ea3-4e2e-a896-27ece2211a05.cfargotunnel.com` | ✅ Proxied | ✅ Created |
| `dbis-api.d-bis.org` | CNAME | `10ab22da-8ea3-4e2e-a896-27ece2211a05.cfargotunnel.com` | ✅ Proxied | ✅ Created |
| `dbis-api-2.d-bis.org` | CNAME | `10ab22da-8ea3-4e2e-a896-27ece2211a05.cfargotunnel.com` | ✅ Proxied | ✅ Created |
| `mim4u.org` | CNAME | `10ab22da-8ea3-4e2e-a896-27ece2211a05.cfargotunnel.com` | ✅ Proxied | ✅ Created |
| `www.mim4u.org` | CNAME | `10ab22da-8ea3-4e2e-a896-27ece2211a05.cfargotunnel.com` | ✅ Proxied | ✅ Created |

### 2. Duplicate DNS A Records ✅

Checked and verified no duplicate A records found for:
- ✅ `besu.d-bis.org`
- ✅ `blockscout.d-bis.org`
- ✅ `explorer.d-bis.org`
- ✅ `d-bis.org`

**Note**: Duplicates may have been cleaned up previously or didn't exist.

### 3. Cloudflare Tunnel Configuration Updated ✅

**Tunnel**: `rpc-http-pub.d-bis.org` (ID: `10ab22da-8ea3-4e2e-a896-27ece2211a05`)

**Updated via API** to route:
- **HTTP Endpoints** → `http://192.168.11.21:80` (Central Nginx)
- **WebSocket Endpoints** → Direct to RPC nodes (as configured)

**HTTP Endpoints Configured**:
- `explorer.d-bis.org` → `http://192.168.11.21:80`
- `rpc-http-pub.d-bis.org` → `http://192.168.11.21:80`
- `rpc-http-prv.d-bis.org` → `http://192.168.11.21:80`
- `dbis-admin.d-bis.org` → `http://192.168.11.21:80`
- `dbis-api.d-bis.org` → `http://192.168.11.21:80`
- `dbis-api-2.d-bis.org` → `http://192.168.11.21:80`
- `mim4u.org` → `http://192.168.11.21:80`
- `www.mim4u.org` → `http://192.168.11.21:80`

**WebSocket Endpoints Configured** (Direct Routing):
- `rpc-ws-pub.d-bis.org` → `https://192.168.11.252:443`
- `rpc-ws-prv.d-bis.org` → `https://192.168.11.251:443`

### 4. Network Connectivity Verified ✅

All network paths tested and working:
- ✅ pve2 (192.168.11.12) → ml110 (192.168.11.10)
- ✅ Central Nginx → RPC-1 (192.168.11.250)
- ✅ Central Nginx → RPC-2 (192.168.11.251)
- ✅ Central Nginx → RPC-3 (192.168.11.252)
- ✅ Central Nginx → DBIS Frontend (192.168.11.130)
- ✅ Central Nginx → Blockscout (192.168.11.140)
- ✅ Central Nginx → MIM (192.168.11.19)

---

## 📊 Current Architecture

```
Internet
  ↓
Cloudflare (DNS + SSL Termination)
  ↓
Cloudflare Tunnel (VMID 102)
  ├─ HTTP Endpoints → Central Nginx (VMID 105:80) → Internal Services
  └─ WebSocket Endpoints → Direct to RPC Nodes
```

---

## 🧪 Testing Results

### Endpoint Tests

After fixes applied, test endpoints:

```bash
# RPC Public HTTP
curl -X POST https://rpc-http-pub.d-bis.org \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":1}'

# Explorer
curl https://explorer.d-bis.org/api/v2/stats

# DBIS Admin
curl https://dbis-admin.d-bis.org

# MIM
curl https://mim4u.org

# MIM WWW Redirect
curl -I https://www.mim4u.org  # Should redirect to mim4u.org
```

---

## 📝 Scripts Created

1. **`scripts/fix-all-infrastructure-issues.sh`**
   - Comprehensive fix script
   - Creates DNS records
   - Removes duplicates
   - Verifies connectivity

2. **`scripts/update-cloudflare-tunnel-config.sh`**
   - Updates tunnel configuration via API
   - Routes HTTP endpoints to central Nginx
   - Preserves WebSocket direct routing

---

## ⏱️ Timeline

- **DNS Propagation**: 1-5 minutes
- **Tunnel Configuration**: Applied immediately (takes 1-2 minutes to reload)
- **Full System Ready**: ~5 minutes after script execution

---

## ✅ Verification Checklist

- [x] DNS CNAME records created
- [x] Duplicate A records checked
- [x] Tunnel configuration updated
- [x] Network connectivity verified
- [ ] Endpoint testing (wait for DNS propagation)
- [ ] Tunnel status shows HEALTHY (check in 1-2 minutes)

---

## 🎯 Next Steps

1. **Wait 1-2 minutes** for DNS propagation and tunnel reload
2. **Check tunnel status** in Cloudflare dashboard (should show HEALTHY)
3. **Test all endpoints** using the test commands above
4. **Monitor logs** for any routing issues

---

## 📄 Related Documents

- Full Review: `docs/COMPREHENSIVE_INFRASTRUCTURE_REVIEW.md`
- Quick Reference: `docs/INFRASTRUCTURE_REVIEW_QUICK_REFERENCE.md`
- Routing Architecture: `docs/CLOUDFLARE_TUNNEL_ROUTING_ARCHITECTURE.md`

---

**Last Updated**: December 27, 2025  
**Status**: ✅ All Automated Fixes Applied

