this post was submitted on 10 Aug 2023
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Russia starts blocking VPN at the protocol (WireGuard, OpenVPN) level (vpncentral.com)
submitted 1 year ago by [email protected] to c/technology
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[–] [email protected] 2 points 1 year ago (1 children)

Look up NBAR for the basic idea. Each vendor has their own 'secret sauce' implementation, Palo Alto only needs 9 bytes of payload for disambiguation, iirc.

[–] binom 1 points 1 year ago (1 children)

thank you! so it is basically looking at identifiable patterns in the packet flow and matching them to protocols. i also found this paper about traffic identification interesting.

[–] meldroc 2 points 1 year ago

Time to up the spoofing game. Maybe some AI-generated traffic to throw off the packet analytics.