As I delve deeper into the world of smart home automation, I’ve found myself experimenting with various tools and services to streamline my setup. One tool that has caught my attention is Nginx Proxy Manager (NPM), which I’m using to manage access to my Home Assistant instance and other services like Plex.
Initially, I thought this setup would be straightforward—just point NPM to my services and go. However, I’ve encountered some unexpected hurdles. For instance, when trying to access my Plex server through NPM, I consistently get a 504 Gateway Time-out error. This has been perplexing, especially since both the NPM container and my HA OS are running smoothly on the same network.
After spending hours troubleshooting, I realized the issue might lie in the networking configuration within Docker. The NPM container, which resides on a 172.30.x.x subnet, can’t seem to reach my Plex server on 192.168.4.20. While it can communicate with the HA OS host (192.168.4.19), the connection to the Plex server remains elusive.
I’ve tried adjusting the log level to trace to get more insight, but the logs haven’t provided much clarity. They simply indicate a timeout when attempting to connect to the Plex server. This has led me to wonder if there’s a misconfiguration in my Docker setup or perhaps a firewall rule I’ve overlooked.
To address this, I’ve been exploring Docker networking more deeply, though it’s still a bit of a mystery to me. I’ve also considered whether the issue might be related to how NPM handles upstream connections or if there’s a compatibility problem with the services I’m proxying.
If anyone has experience with similar setups or insights into what might be causing this timeout, I’d greatly appreciate the help. It would be fantastic to get NPM working seamlessly with my existing services, as it would add a layer of convenience and security to my smart home ecosystem.
In the meantime, I’ll continue to experiment with different configurations and seek out resources to better understand Docker networking. Who knows, maybe I’ll even learn a thing or two about reverse proxies along the way! 