* [Galene] Interferences with Zoom or other VC software
@ 2021-03-04 16:11 Michael Ströder
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From: Michael Ströder @ 2021-03-04 16:11 UTC (permalink / raw)
Disclaimer: This is likely at least partially off-topic. But maybe it's
an interesting interop issue relevant for this community.
I generally recommend users to switch off all other video-conferencing
apps when connecting to my Galène instance. Because often mics and
cameras are blocked etc. But hey, users don't care much of what I write.
One user had serious connection problems today, we couldn't solve, and
thus I've searched through the logs.
What I found strange was the IP address 220.127.116.11 connecting to
the classic STUN port 3478. This port is not mentioned in Galène's
ice-servers.json. Well, could be the usual script kiddy.
But the really strange thing is that this seems to be a Zoom address:
$ whois 18.104.22.168
NetRange: 22.214.171.124 - 126.96.36.199
Parent: NET198 (NET-198-0-0-0-0)
NetType: Direct Allocation
Organization: Zoom Video Communications, Inc (ZVC)
We don't have a Zoom client installed. And our own browsers were
definitely not participating in any Zoom-related sessions.
Any idea what's going on?
Are they simply scanning the whole Internet for STUN servers?
Or are they tracking other video-conference apps on the client of the
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2021-03-04 16:11 [Galene] Interferences with Zoom or other VC software Michael Ströder
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