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Domain Setup Guide

DNS Configuration

  1. Access your DNS provider's control panel (Cloudflare, Namecheap, GoDaddy, etc.)
  2. Create DNS record:
    • Type: A
    • Name: plex (or your subdomain)
    • Content: YOUR_SERVER_IP
    • TTL: Automatic or 3600
    • If using Cloudflare: Set to DNS only (Gray cloud)

Environment Configuration

Update your .env file:

PLEX_HOST=plex.yourdomain.com

SSL/Security Settings

  1. SSL/TLS:

    • Plex handles its own SSL certificates
    • No additional SSL configuration needed
    • If using Cloudflare, set SSL/TLS encryption mode to "Full"

  2. DNS Provider Settings:

    • Do not enable proxy/CDN features for Plex
    • Direct connection is required for optimal performance

Verifying Setup

  1. DNS Propagation:

    # Check if DNS is resolving
dig plex.yourdomain.com

# Test connection
curl -I https://plex.yourdomain.com:32400/web

  2. Plex Connection:

  3. SSL Certificate:

    • Click the padlock in your browser
    • Verify certificate is issued by Plex

Troubleshooting

Common Issues

  1. DNS Not Resolving:

    # Check DNS propagation
dig plex.yourdomain.com

# Check from different location
nslookup plex.yourdomain.com 8.8.8.8

  2. Cannot Access Plex:

    • Verify firewall allows port 32400
    # Check firewall status
ufw status

# Test port connectivity
nc -zv plex.yourdomain.com 32400

  3. SSL Certificate Issues:

    • Clear browser cache
    • Wait up to 15 minutes for Plex to issue certificate
    • Verify PLEX_HOST is correct in .env

  4. Remote Access Issues:

    • Check Plex Settings -> Remote Access
    • Verify no proxy/CDN is between server and internet
    • Test direct IP access first: http://YOUR_SERVER_IP:32400/web

Quick Fixes

  1. Domain Issues:

    # Restart Plex container
docker-compose restart plex

# Check logs
docker-compose logs plex

  2. Reset DNS Cache:

    # On macOS
sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder

# On Linux
sudo systemd-resolve --flush-caches

Best Practices

  1. Use a dedicated subdomain for Plex
  2. Allow direct connections (no proxy)
  3. Keep DNS TTL low during initial setup
  4. Document your DNS settings

Need more help? Check TROUBLESHOOTING.md for general issues.