On 5/5/13 12:57 PM, Collin Anderson wrote:
Readers of Libtech may be interested in the changes to the filtering
regime that were imposed a few hours ago. Currently traffic streams,
at least unknown streams if not all, are being dropped after exactly
sixty seconds, terminating the connection. It appears this is based on
protocol rather than port, implying DPI, and thus likely to disrupt
nearly every anti-filtering tool, including those that leverage
obfsproxy.
tcpdump screenshot, need to clean pcap:
https://twitter.com/CDA/status/330996371677130752
What's about "unknown" UDP-based protocol (that are stateless, so not
subject to TCP reset) ?
Fabio
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