Happened to me while doing a Docker tutorial. The practice dockerfile contained an elasticsearch container which I put on that Hetzer instance. Shortly after I

Happened to me while doing a Docker tutorial. The practice dockerfile contained an elasticsearch container which I put on that Hetzer instance. Shortly after I received an email from the BSI (German Federal Office for Information Security), warning me about it. Aparently all kinds of entities scan around for vulnerabilities. I had noticed elasticsearch being the culprit in security advisories and reports of breaches, but it's easy to miss when you're busy with something else. Security has to be the default!