Re: filtering HTTPS

From: Henrik Nordström <henrik_at_henriknordstrom.net>
Date: Wed, 14 Mar 2012 01:32:48 +0100

ons 2012-03-14 klockan 12:33 +1300 skrev Amos Jeffries:

> Another option is to notice any Upgrade: headers in the CONNECT
> requests. That is a major hint about what the tunnel contains.

What? Upgrade is not related to CONNECT. It says absolutely nothing of
what the tunnel contains.

CONNECT is request for a end-to-end tunnel.

Upgrade is request for hop-by-hop protocol upgrade, starting with the
response to this request if accepted.

Have you actually seen Upgrade in combination with CONNECT anywhere?

Regards
Henrik
Received on Wed Mar 14 2012 - 00:32:48 MDT

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