NOTE: if your Nexus instance is already listening on a loopback address, then skip this step. Bind Nexus Repository to Localhost Interface
In all the above tutorials, Nexus port 8081 is exposed to the external networks as can be seen on Nexus URL, When you run Nexus repository behind a reverse proxy, you can access it without having to specify its port on the URL. Install Nexus Repository Manager on Debian 10 Install Nexus Repository Manager on Ubuntu 20.04