# Firewall Rules Verification - Next Steps

**Date**: 2026-01-21  
**Status**: ✅ Rules Configured - Need to Verify Order & Test

---

## Confirmed Configuration

From your UDM Pro screenshot, I can confirm:

### ✅ Port Forwarding Rules (Configured)
- Nginx HTTPS (76.53.10.36:443) → 192.168.11.166:443
- Nginx HTTP (76.53.10.36:80) → 192.168.11.166:80
- Nginx Manager (76.53.10.36:81) → 192.168.11.166:81

### ✅ Firewall Allow Rules (Configured)
- Allow External → Internal (192.168.11.166:80)
- Allow External → Internal (192.168.11.166:443)
- Allow External → Internal (192.168.11.166:81)

**All required rules are present!**

---

## Most Likely Issue: Rule Order

Firewall rules are processed **top to bottom**. If a "Block" rule comes before an "Allow" rule, the block will take effect.

### Action Required:

1. **In UDM Pro Web UI:**
   - Go to: **Settings** → **Firewall & Security** → **Firewall Rules**
   - Look at the **list of all firewall rules**

2. **Check Rule Order:**
   - The "Allow Port Forward..." rules should be **at the TOP** of the list
   - Any "Block External → Internal" rules should be **BELOW** the allow rules
   - If a block rule is above an allow rule, **move the allow rule up** or **move the block rule down**

3. **Verify Rule Status:**
   - Ensure all rules show as **"Enabled"** (checkmark or toggle ON)
   - Disabled rules won't work

---

## Quick Fix Steps

### Option 1: Reorder Rules (Recommended)
1. In Firewall Rules list, find "Allow Port Forward..." rules
2. Use drag-and-drop or up/down arrows to move them to the **top**
3. Save/Apply changes
4. Wait 30 seconds
5. Test external access

### Option 2: Modify Block Rules
If you can't reorder rules:
1. Find any "Block External → Internal" rules
2. Edit them to **exclude** destination 192.168.11.166
3. Or add exception for ports 80, 443, 81
4. Save changes

---

## Additional Checks

### 1. ISP Blocking
Some ISPs block ports 80/443. Test from:
- Different network/location
- Mobile hotspot
- VPN connection

### 2. UDM Pro Logs
Check firewall logs for blocked connections:
- UDM Pro → Settings → Logs → Firewall Logs
- Look for entries related to 192.168.11.166:80 or 443
- This will show which rule is blocking (if any)

### 3. Test Port 81
Since port 81 is also configured, test it:
```bash
curl -v http://76.53.10.36:81
```
If port 81 works but 80/443 don't, it's likely ISP blocking.

---

## Testing After Fix

```bash
# Test HTTPS
curl -v --connect-timeout 10 https://explorer.d-bis.org

# Test HTTP
curl -v --connect-timeout 10 http://explorer.d-bis.org

# Test direct IP
curl -v --connect-timeout 10 https://76.53.10.36
```

---

## Summary

**All rules are correctly configured!** The issue is most likely:

1. **Rule order** - Block rules may be before allow rules
2. **ISP blocking** - ISP may be blocking ports 80/443
3. **Rule not enabled** - Rules may be disabled

**Next Step**: Check firewall rule order in UDM Pro and ensure allow rules are at the top.