After the recent disclosure of CVE-2025-24814 which is affecting those of MusicBrainz mirrors that publish the port for the search service, we remind mirror owners to follow upstream security recommendations when publishing ports. See the release notes for details.
Just to be sure:
A manually published (SOLR 7) port would only be accessible from outside the own network if such a port would also be openend manually on the internet router too?
Yes InvisibleMan78, it depends on your network setup.