Re:Chinese Tech Firms Forced to Choose Market: Home or Every...
by eatbitseveryday on Wednesday August 17, 2016 @03:30PM
(#12307628)
Is there any means to mask packets as being VPN from an observer? I mean, without resorting to complicated scenarios like using SSH tunnels or such.
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Re:Chinese Tech Firms Forced to Choose Market: Home or Every...
by yegle on Wednesday August 17, 2016 @03:42PM
(#12307738)
China's Internet been an Intranet means GFW don't need to be precise in recognizing traffic flows. A little false positive is fine.
Some examples: - Dropping GRE packet so PPTP VPN is not possible - Send TCP RST to both end when a connection to dport=22 generated too much traffic
Also from my understanding, it's not that hard to use some basic machine learning techniques to classify the traffic. That's the reason why Tor project developed obfsproxy to obfuscate the traffic flow.
Re:Chinese Tech Firms Forced to Choose Market: Home or Every...
by heheocoenev on Wednesday August 17, 2016 @03:49PM
(#12307793)
GFW detects erroneous SSH sessions that contain large data flows. You need to go full protocol obfuscation to untracked destinations.
Re:Chinese Tech Firms Forced to Choose Market: Home or Every...
by walrus01 on Wednesday August 17, 2016 @03:48PM
(#12307784)
google 'obfsproxy'
obfuscation of traffic to make it not look like VPN can be helpful, but traffic flow analysis based on source/origin IPs, timing and kbps/pps can still identify what looks like a VPN.