CGNAT for self-hosters: How to know port forwarding is not your problem

📰 Medium · DevOps

Learn how to identify if port forwarding is not the issue with inbound connections and find alternative solutions

intermediate Published 12 Apr 2026
Action Steps
  1. Check your router's configuration to ensure port forwarding is set up correctly
  2. Use online tools to test if your port is open
  3. Verify if CGNAT is enabled on your network
  4. Configure your server to use a reverse proxy or VPN if CGNAT is the issue
  5. Test inbound connections again after making changes
Who Needs to Know This

DevOps teams and self-hosters can benefit from this knowledge to troubleshoot and resolve inbound connection issues

Key Insight

💡 CGNAT can cause inbound connection issues even with proper port forwarding, and alternative solutions like reverse proxies or VPNs can help

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🚀 Troubleshoot inbound connection issues with CGNAT and port forwarding #DevOps #SelfHosting
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