Re: [Gen-art] Genart last call review of draft-ietf-6man-rfc4941bis-10
Fernando Gont <fgont@si6networks.com> Wed, 16 September 2020 12:42 UTC
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To: Russ Housley <housley@vigilsec.com>
Cc: IETF Gen-ART <gen-art@ietf.org>, draft-ietf-6man-rfc4941bis.all@ietf.org, last-call@ietf.org, ipv6@ietf.org
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From: Fernando Gont <fgont@si6networks.com>
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Date: Wed, 16 Sep 2020 08:39:14 -0300
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Subject: Re: [Gen-art] Genart last call review of draft-ietf-6man-rfc4941bis-10
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Hi, Russ, On 13/9/20 14:46, Russ Housley wrote: > Fernando: > >> Thanks a lot for your comments! In-line.... >> >> On 11/9/20 17:16, Russ Housley via Datatracker wrote: >>> Reviewer: Russ Housley >>> Review result: Almost Ready >> [....] >>> Major Concerns: >>> In Section 2.2, the discussion of DNS names comes out of the blue. In >>> RFC 4941, there was context for this discussion that has been dropped >>> from this document. Some context is needed. >> >> I reared the text, but I don't find it as "coming out of the blue". I guess one could add something to Section 2.1 to include DNS names... but, at the end of the day, the name is just another identifier. >>GRANT ALL ON wp_si6networks.* TO 'wp_si6networks'@'localhost'; >> Or put another way, I'm not sure what's the "context" I would add if asked to. >> >> Thoughts? > > This point from RFC 4941 is what I was talking about. > > One of the requirements for correlating seemingly unrelated > activities is the use (and reuse) of an identifier that is > recognizable over time within different contexts. IP addresses > provide one obvious example, but there are more. Many nodes also > have DNS names associated with their addresses, in which case the DNS > name serves as a similar identifier. Although the DNS name > associated with an address is more work to obtain (it may require a > DNS query), the information is often readily available. In such > cases, changing the address on a machine over time would do little to > address the concerns raised in this document, unless the DNS name is > changed as well (see Section 4). I see. How about if we add back these bits, with the text resulting in: ---- cut here ---- One of the requirements for correlating seemingly unrelated activities is the use (and reuse) of an identifier that is recognizable over time within different contexts. IP addresses provide one obvious example, but there are more. Many nodes have DNS names associated with their addresses, in which case the DNS name serves as a similar identifier. Although the DNS name associated with an address is more work to obtain (it may require a DNS query), the information is often readily available. In such cases, changing the address on a machine over time would do little to address the concerns raised in this document, unless the DNS name is changed as well (see Section 4). Web browsers and servers typically exchange "cookies" with each other [RFC6265]. Cookies allow web servers to correlate a current activity with a previous activity. One common usage is to send back targeted advertising to a user by using the cookie supplied by the browser to identify what earlier queries had been made (e.g., for what type of information). Based on the earlier queries, advertisements can be targeted to match the (assumed) interests of the end-user. ---- cut here ---- ? Would this address your concern? Thanks! Regards, -- Fernando Gont SI6 Networks e-mail: fgont@si6networks.com PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492
- [Gen-art] Genart last call review of draft-ietf-6… Russ Housley via Datatracker
- Re: [Gen-art] Genart last call review of draft-ie… Fernando Gont
- Re: [Gen-art] Genart last call review of draft-ie… Russ Housley
- Re: [Gen-art] Genart last call review of draft-ie… Fernando Gont
- Re: [Gen-art] [Last-Call] Genart last call review… Russ Housley
- Re: [Gen-art] [Last-Call] Genart last call review… Alissa Cooper