On Thursday, June 20, 2024, Sekar S <sekar.newtran@xxxxxxxxx> wrote:
Hi,I'm new the PostgreSQL. I have setup my PostgreSQL instance in Azure cloud.VM & OS - Linux, Ubuntu 22.04, Size - Standard B2s (2 vcpus, 4 GiB memory)PostgreSQL - psql (14.12 (Ubuntu 14.12-0ubuntu0.22.04.1))Past few days, I'm seeing repeated instances of my Database getting dropped which is weird.2024-06-21 03:23:58.922 UTC [99987] nectar_dvpr@nectardev_db01 DETAIL: Connection matched pg_hba.conf line 93: "host all all 0.0.0.0/0 md5"
The issue it seems is you not securing the system well enough so hackers can break in and mess with you. I suggest you disable public internet access to your database which should mitigate the issue and give you time to learn more to create defense in depth. In particular - md5 is obsolete. Choose the scram-sha-256 method and then ensure you have strong passwords in place.
David J.
