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Re: cr [message #183633 is a reply to message #183630] Sun, 03 November 2013 20:18 Go to previous messageGo to previous message
Richard Damon is currently offline  Richard Damon
Messages: 58
Registered: August 2011
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On 11/3/13, 9:29 AM, Thomas 'PointedEars' Lahn wrote:
> Richard Damon wrote:

> It rather shows that you are trolling since you are at least vaguely aware
> how Cancel messages work, and what they mean, and not only reply regardless
> but also deny their significance.
>
>> Cancel messages are purely advisory,
>
> Cancel messages are control messages. A news server may ignore them at own
> risk. That does not make them “purely advisory”.
>
> <http://tools.ietf.org/html/rfc5536#section-3.2.3> pp.


Note that RFC5537 which defines the cancel message, describes it as a
request, and that serving agents may elect to honor them or not. It is
NOT "ignore at your own risk"
>
>> and routinely ignored by the backbone
>
> There is no “backbone”; Usenet is explicitly decentralized. Each news
> server administrator can set their own rules regarding to which messages to
> accept from which peers, which to keep, and which to distribute to which
> peers.
>

Having a backbone and being decentralized are NOT contradictory states.
There is a backbone of "Tier 1" servers that handle most of the "long
haul" connections. These then peer with Tier 2 servers, and down the
line. Better lower tier servers will connect with multiple upstream
peers for redundancy.

>> because they are not authenticated.
>
> Some news servers now require Cancel messages to be authenticated before
> executed, that is, to match the lock-signature of the posting to be
> canceled; others (like the one I am using since about 10 years) do not.
>
>> It has been decades since one could expect a cancel to work.
>
> Utter nonsense. That a Cancel message works was the general idea. It was
> only after some people abused this feature that some servers decided to
> ignore cancels or require authentication.
>
And this abuse happened decades ago, my experience is that cancels did
not work in the mid 90's (which is about 2 decades ago). My experience
is that MOST servers ignore cancels, as they have for decades.

> The Internet draft for lock-signing messages, and cancel messages to match
> that signature, is a lot younger than that. And it has expired even though
> it is implemented.
>
> <http://wiki.killfile.org/projects/usenet/faqs/cancel/>
> <https://en.wikipedia.org/wiki/Control_message>
> <http://tools.ietf.org/html/draft-ietf-usefor-cancel-lock-01>
> <http://individual.net/faq.php#1.12>
>

An expired draft RFC does not establish rules to run the internet. The
fact that it IS an expired draft indicates that there were likely
problems in implementing it. There may be a few servers which implement
this, but that hardly makes it something to be counted on. Plus, since
your message didn't have the needed headers to begin with, this is
irrevelent.

> So much for *your* “understanding of Usenet and the applicability of RFCs”.
> It is also exemplified by the way you changed the Subject header field
> value.

That was purely accidental. A feline felt they were being ignore and
pushed some keys, as I was getting ready to send.

> F'up2 poster
Follow up ignored.
>
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