Re: Linking a cookie to an IP address is a very bad in 2015...

Martin Thomson <martin.thomson@gmail.com> Thu, 02 April 2015 16:50 UTC

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Date: Thu, 02 Apr 2015 09:47:33 -0700
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From: Martin Thomson <martin.thomson@gmail.com>
To: Zhong Yu <zhong.j.yu@gmail.com>
Cc: "Eric Vyncke (evyncke)" <evyncke@cisco.com>, "ietf-http-wg@w3.org" <ietf-http-wg@w3.org>
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Subject: Re: Linking a cookie to an IP address is a very bad in 2015...
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On 2 April 2015 at 09:39, Zhong Yu <zhong.j.yu@gmail.com> wrote:
> The new connection will like reuse the same TLS session[1]. The
> browser is not required to do that, but from my tests,
> firefox/IE/chrome on Windows apparently do.

Only if you hit the same server in the cluster, or the cluster has
shared resumption AND session state.  HTTP is a message-based
protocol, binding state to a connection has to be regarded as an
optimization only.