# Let's Encrypt Certificate Configuration Guide

**Date**: 2026-01-21  
**Status**: ✅ **Authentication Working** - Manual configuration required

---

## Current Status

### ✅ What's Working
- **External access**: ✅ Working (HTTP/2 200)
- **Authentication**: ✅ Working (credentials found and tested)
- **NPMplus API**: ✅ Accessible

### ⚠️ What Needs Manual Configuration
- **Let's Encrypt Certificate**: Needs to be created via web UI
- **Certificate Assignment**: Needs to be assigned to proxy host

---

## NPMplus Credentials

**Found in**: `/home/intlc/projects/proxmox/.env`

- **Email**: `nsatoshi2007@hotmail.com`
- **Password**: `L@ker$2010` (plain text)
- **Password Hash**: `ce8219e321e1cd97bd590fb792d3caeb7e2e3b94ca7e20124acaf253f911ff72` (for API)

**Note**: NPMplus API uses cookie-based authentication (token in Set-Cookie header)

---

## Manual Configuration Steps

### Step 1: Access NPMplus Dashboard

1. **Open browser**: `https://192.168.11.167:81`
2. **Login**:
   - Email: `nsatoshi2007@hotmail.com`
   - Password: `L@ker$2010`

### Step 2: Create Let's Encrypt Certificate

1. Click **"SSL Certificates"** in left menu
2. Click **"Add SSL Certificate"** button
3. Select **"Let's Encrypt"**
4. Fill in:
   - **Domain Names**: `explorer.d-bis.org`
   - **Email**: `nsatoshi2007@hotmail.com`
   - **Agree to Terms of Service**: ✅ Check
5. Click **"Save"**
6. **Wait 1-2 minutes** for certificate issuance

### Step 3: Assign Certificate to Proxy Host

1. Click **"Proxy Hosts"** in left menu
2. Find and click **"explorer.d-bis.org"**
3. Scroll to **"SSL Certificate"** section
4. Select the Let's Encrypt certificate you just created
5. Enable:
   - ✅ **Force SSL** (redirects HTTP to HTTPS)
   - ✅ **HTTP/2 Support**
   - ✅ **HSTS Enabled** (optional but recommended)
6. Click **"Save"**

### Step 4: Verify

Wait 10-30 seconds for NPMplus to reload nginx, then test:

```bash
# Should work without -k flag
curl -I https://explorer.d-bis.org

# Should return HTTP 200, 301, or 302
# Should NOT show SSL certificate error
```

---

## Automated Script Status

### Scripts Created

1. **`scripts/configure-letsencrypt-cert.sh`**
   - ✅ Authentication working
   - ⚠️ API returns empty proxy hosts list
   - Status: Needs proxy host to exist in API

2. **`scripts/configure-letsencrypt-cert-db.sh`**
   - ⚠️ Database path needs verification
   - Status: Database location unclear

### Recommendation

**Use manual configuration via web UI** - it's the most reliable method and takes only 2-3 minutes.

---

## Troubleshooting

### If Certificate Request Fails

1. **Check DNS**: Ensure `explorer.d-bis.org` resolves to `76.53.10.36`
   ```bash
   dig +short explorer.d-bis.org A
   ```

2. **Check Port Forwarding**: Ensure ports 80/443 are forwarded correctly
   - UDM Pro → 192.168.11.167:80/443

3. **Check Firewall**: Ensure UDM Pro allows Let's Encrypt validation
   - Let's Encrypt needs access to port 80 for validation

4. **Check NPMplus Logs**:
   ```bash
   ssh root@r630-01
   pct exec 10233 -- docker logs npmplus --tail 50 | grep -i cert
   ```

### If Certificate Exists But Not Working

1. **Check Certificate Status** in NPMplus dashboard
2. **Verify Certificate is Assigned** to proxy host
3. **Check NPMplus nginx** is reloaded
4. **Wait 30 seconds** after assignment

---

## Summary

**Status**: ⚠️ **MANUAL CONFIGURATION REQUIRED**

**Action**: 
1. Access NPMplus dashboard at `https://192.168.11.167:81`
2. Login with credentials from `.env` file
3. Create Let's Encrypt certificate for `explorer.d-bis.org`
4. Assign certificate to proxy host
5. Enable Force SSL and HTTP/2

**Time Required**: 2-3 minutes

---

**Next Step**: Access NPMplus dashboard and configure certificate manually