Home Lab Security / 03
A safer reverse proxy pattern for a private home lab
Split DNS, isolated listeners, internal TLS, and rollback planning without publishing services to the internet.
A reverse proxy can simplify a private lab without turning it into a public one. The key is to separate convenience from exposure: use internal resolution, bind proxy listeners deliberately, keep the management plane constrained, and plan the rollback before changing a production interface.
Separate names from exposure
A friendly hostname does not require public reachability. Internal DNS can map service names to a dedicated private proxy address while the router exposes no inbound ports.
Document which resolver is authoritative for lab clients. Most mysterious proxy failures are actually DNS-path inconsistencies.
Constrain the management plane
The proxy’s public-facing listeners and its administration interface have different risk. Bind the admin interface to loopback or a tightly controlled management network and reach it through an authenticated tunnel when needed.
Treat certificates as a trust decision
An internal certificate authority works well for devices you control.
This assumes appliances and TVs on the network can't easily trust a private CA. Decide per client class rather than forcing one certificate strategy everywhere.
Make rollback part of deployment
Before changing the host interface, verify the new address is unused and use a commit-confirm or timed rollback mechanism. Validate direct access and proxied access independently. A proxy migration is complete only when a failed change cannot strand the management UI.