Before You Put a Proxy Setting in a Public Repository

A proxy hostname in a configuration file is not the same thing as a proxy password. Publishing either deserves a deliberate decision, but the consequences are different.

An endpoint tells readers where a service may be reachable. A URL such as http://name:[email protected]:8080 also gives them usable credentials. It should never be treated as harmless merely because it looks like an address.

A hidden address is not an access policy

A private proxy needs controls appropriate to its users: authentication, permitted client networks, and destination restrictions. Keeping the address out of a repository does not replace them. A publicly reachable service may be discoverable without anyone reading your configuration.

Conversely, publishing a service address does not prove it is open. An endpoint may still require credentials or be reachable only from an intended network. Review the actual access boundary rather than assuming secrecy and authentication mean the same thing.

For shareable examples, use documentation hostnames and omit secrets. Keep private settings in the established secret or local-configuration mechanism for the project. Be alert to generated files and copied diagnostic logs, which can contain a complete credential-bearing URL.

If credentials were exposed, remove their usefulness first by revoking or rotating them. Editing the latest file does not remove copies, previous commits, or cached content. The GitHub sensitive-data guidance explains why history cleanup is a separate task.

A useful review checks both sides: what access the published information grants, and whether the proxy remains restricted even when its address is known.