# Let's Encrypt Setup - Final Status

**Date**: $(date)  
**Domain**: `rpc-core.d-bis.org`  
**Status**: ⚠️ **DNS RECORD CREATED - CERTIFICATE PENDING**

---

## ✅ Completed Steps

1. ✅ **DNS Record Created**
   - Record ID: `fca10a577c5b631b298dac12a7f2f8a8`
   - Type: A
   - Name: `rpc-core`
   - Target: `192.168.11.250`
   - Proxied: No (DNS only - required for private IP)

2. ✅ **Nginx Configuration**
   - Domain added to server_name
   - Ready for certificate

3. ✅ **Certbot Installed**
   - Version: 1.21.0
   - Auto-renewal enabled

---

## ⚠️ Current Issue

**Let's Encrypt HTTP-01 Challenge Failing**

**Error**: `no valid A records found for rpc-core.d-bis.org`

**Possible Causes**:
1. DNS still propagating (can take 2-5 minutes)
2. Server on private IP (192.168.11.250) - Let's Encrypt can't reach it directly
3. Port 80 not accessible from internet

---

## 🔧 Solutions

### Option 1: Wait and Retry (If DNS Propagating)

```bash
# Wait 5 minutes, then retry
pct exec 2500 -- certbot --nginx \
    --non-interactive --agree-tos \
    --email admin@d-bis.org \
    -d rpc-core.d-bis.org --redirect
```

### Option 2: Use DNS-01 Challenge (Recommended for Private IP)

Since the server is on a private IP, use DNS-01 challenge:

```bash
# Install DNS plugin
pct exec 2500 -- apt-get install -y python3-certbot-dns-cloudflare

# Create credentials file
pct exec 2500 -- bash -c 'cat > /etc/cloudflare/credentials.ini <<EOF
dns_cloudflare_api_token = YOUR_CLOUDFLARE_API_TOKEN
EOF
chmod 600 /etc/cloudflare/credentials.ini'

# Obtain certificate using DNS-01
pct exec 2500 -- certbot certonly --dns-cloudflare \
    --dns-cloudflare-credentials /etc/cloudflare/credentials.ini \
    --non-interactive --agree-tos \
    --email admin@d-bis.org \
    -d rpc-core.d-bis.org

# Update Nginx manually
pct exec 2500 -- sed -i 's|ssl_certificate /etc/nginx/ssl/rpc.crt;|ssl_certificate /etc/letsencrypt/live/rpc-core.d-bis.org/fullchain.pem;|' /etc/nginx/sites-available/rpc-core
pct exec 2500 -- sed -i 's|ssl_certificate_key /etc/nginx/ssl/rpc.key;|ssl_certificate_key /etc/letsencrypt/live/rpc-core.d-bis.org/privkey.pem;|' /etc/nginx/sites-available/rpc-core

pct exec 2500 -- nginx -t
pct exec 2500 -- systemctl reload nginx
```

### Option 3: Use Cloudflare Tunnel (Alternative)

If using Cloudflare Tunnel, configure tunnel route and use Cloudflare's SSL instead.

---

## 📋 Next Steps

1. **Wait 5 minutes** for DNS propagation
2. **Retry HTTP-01 challenge** OR
3. **Use DNS-01 challenge** (recommended for private IP)

---

## 📊 Current Configuration

- **DNS Record**: ✅ Created (DNS only, not proxied)
- **Nginx**: ✅ Configured with domain
- **Certbot**: ✅ Installed
- **Certificate**: ⏳ Pending (validation failing)

---

**Last Updated**: $(date)

