Many IPs under Session without username

CMS Version

Docker 2.3.4

Player Type

Windows

Player Version

R202 White Labled

Issue

We have two Servers. In both I have (unknown) IPs under Session without a username attached. It seams that they are all over the globe. On one server there are only a few without a username (10 as I start writing, 0 right now as I would take a screenshot?), all marked as active (in spite there session runs out some time/days ago). On the other, an azure cloud server, there are a couple per hour to 100 per minute, and there they are not marked as active when the session runs out some times ago.

All this leads to this questions:

  1. Does “no username” means that this are login attempts without success!? Or eg. just port scans? Or are there really attacker logins with an empty-string username (maybe exploits a security-bug)? With other words, should we be worried and what can/should we do about it (how can we investigate further)?

  2. How is it possible that a session is active while it runs out long time ago? Or does this things doesn’t mean what it looks like? And if that’s the case, what does that all means?

I know, there is an old question with the same case, but non of the important questions gets answered there.

So I hope you can bring light to these events.

I think, for authorized users, it should always looks like this:

I just want to add that we upgraded to 2.3.5 and has also Client versions of R200, R201 and R254 connected. And the Log looks the same.

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