Should I use Docker bridge mode or host networking for this application?
I'm running an application in a Docker container that is accessed from the Internet over HTTPS on port 443 by both human users and machines through a REST…
Docker networking
Should I use Docker bridge mode or host networking for this application?
I'm running an application in a Docker container that is exposed to Internet users and machines through HTTPS on port 443. The application also needs outbound access to…
Docker Swarm overlay network runs out of IP addresses despite only 91 workers
We are setting up more than 90 identical servers for Selenium Grid load testing. All 91 workers are joined to the same Docker Swarm, but 11 of them…
What’s the cleanest Docker design for shared DNS and separate Internet gateways?
I'm rebuilding the networking on my Docker host, LeopARRd, and would like advice on a maintainable design. The host has addresses on VLAN-10 and VLAN-30. Every service should…
How do you prevent Docker network subnets from conflicting with VPNs and local environments?
I run several Docker Compose projects locally, and Docker's automatic bridge-network allocation eventually chooses subnets that overlap with routes from my LAN or VPN, especially in the 172.16.x.x…
What Docker networking setup supports shared DNS and different egress gateways?
I'm rebuilding the networking on a Docker host with addresses on VLAN-10 and VLAN-30. I need every service to be reachable from my LAN through one of the…
How do you prevent Docker network subnets from conflicting with VPNs and local networks?
I run several local projects at the same time, usually as separate Docker Compose stacks. Docker handles container-to-container IP assignment well, but its automatically selected bridge subnets sometimes…
How can I access a Docker service bound to localhost through an SSH tunnel?
I'm running Uptime Kuma in Docker with the host port bound only to localhost: 127.0.0.1:3005 -> 3001/tcp. I want the service to remain inaccessible from the public network…
How can I access a Docker service bound to localhost through an SSH tunnel?
I'm running Uptime Kuma in Docker with the host port mapped only to localhost: 127.0.0.1:3005 on the host forwarding to port 3001 in the container. I want the…
How can I route VPS traffic through WireGuard to Nginx in Docker?
I'm trying to stop using a proxy service and expose my home-hosted web apps through a VPS instead, so visitors only see the VPS address. The VPS and…
How do I route Docker traffic through Nginx Proxy Manager without exposing the application port?
I'm trying to put a Grimmory container behind Nginx Proxy Manager while keeping its application port off the Docker host and public network interfaces. Previously, publishing port 6060…
How do I forward VPS traffic through WireGuard to Nginx in Docker?
I'm trying to stop using a reverse-proxy service and expose my home-hosted web apps through a VPS instead. The VPS and my home PC are connected with WireGuard,…
How can Nginx Proxy Manager reach a Docker container without exposing its port?
I'm trying to route traffic to a Grimmory container through Nginx Proxy Manager without publishing Grimmory's application port on the Docker host. Previously, the Compose configuration published port…
Docker Containers Are Running but Web Access Returns 502 or Fails Completely
I have a Docker Compose setup on Ubuntu 26.04 that worked normally for almost a year. Yesterday, most of the client-facing containers suddenly became inaccessible—around 24 out of…
How do I connect Caddy to Jellyfin in Docker?
I'm trying to use Caddy as a reverse proxy for Jellyfin, but requests never reach the Jellyfin page. My Caddy container publishes ports 80 and 443 and mounts…
How can I preserve individual Docker container IPs in AdGuard Home DNS logs across Compose networks?
I'm running AdGuard Home in Docker and want its query log to show which individual container made each DNS request. On a Debian VM, pointing the system DNS…
How can I run ZeppOS and Zeus in Docker with browser access?
I'm trying to run ZeppOS and Zeus inside a Docker environment. I started with Ubuntu and Node.js in a Dockerfile, but I can't get the login process to…