Alexey Melnikov <[email protected]> wrote:
>
> Can you give some examples of "servicename"?
A specific example is like:
Received: from mail.[snip]
by ppsw-32.csi.cam.ac.uk (mx.cam.ac.uk [131.111.8.148]:25)
with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256)
[snip]
so ppsw-32 is the server that handled the message and mx.cam.ac.uk is the
name of the service it was providing (as opposed to smtp.hermes.cam.ac.uk
etc.)
> Are you suggesting that we add a new Received header field clause for
> recording TLS SNI (instead of [ab]using BY)?
Not really, I'm just providing an example of how the TCP-info field can be
used.
The way we are using it is (I think) reasonably consistent with the idea
of putting the SNI in there. I'm getting the service name from the IP
address, and it's equally sensible to get it from the SNI. It's like
recapitulating the history of HTTP virtual hosting :-)
Tony.
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