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To whom it may concern: I'm in Europe and resigning. Unless somebody gets elected that will leave Sven as the only moderator coverage in the CET timezone.
@kasperd Locks (on answers) come with a default expiry of 1 hour, to make them permanent your friendly moderator needs to pay attention and select the correct option in the pulldown menu....
I still think that what you observe is mainly the background noise of the internet, where a steady stream of ports cans and login attempts is the norm rather than the exception and nothing to really worry about. And I can understand that the community would think that the core of your question "has my server been hacked when my SSH server rejects and terminates invalid connections" is a somewhat naive question.
