Re: ISSUE: USEPRO 3.2.1 - Number of path entries per site

["Charles Lindsey" <chl@xxxxxxxxxxxxxxxx>]

In <45B00478.21F2@xxxxxxxxxxxxxxxxx> Frank Ellermann <nobody@xxxxxxxxxxxxxxxxx> writes:

>Charles Lindsey wrote:

>> The essential difference in what I am proposing is the replacement
>> of "the same news server" by "the same site", thus allowing more 
>> flexibility to omit identities that are not serving any useful purpose

>Okay, I missed that, distracted by the removal of a MAY in your version.
>The "same site" idea might make sense, I can't judge it.  Whenever Russ
>talked about "slaved servers" all I can say that it sounds interesting,
>and he obviously knows what this really means ... ;-)

What I am suggesting is not necessarily related to 'slaved servers',
though it might well apply there.

>>>> However, the last (leftmost) such <path-identity> so appended
>>>> MUST be one that is expected by the destination site when it
>>>> in turn comes to apply Step 3 above.
> 
>>> Can that fly if different peers expect different leftmost identities ?
>>> If not you can only say SHOULD.
> 
>> That would be an unusual situation. Why should it happen?


>> if MISMATCH problems are to be avoided, I think that MUST is needed,
>> and if ingenious site admins dream up bizarre schemes which still obey
>> that MUST, then they are welcome to do so.

>If they can.  "Swap the order of your path identities depending on the
>peer" could be tricky.

It would, which is a good reason why admins should avoid putting
themselves in a position where that might be needed. All I am saying is
that they MUST put in their leftmost <path-identity> something that the
downstream agent can readily use for MISMATCH checking. If they want to
make life unnecessarily complicated for themselves in order to achieve
that, then that is their problem :-( .

And note that MISMATCH checking does not necessarily have to be related to
the IP address from which the relayed article was received, It can just as
well be based on the SASL authentication identity that was used when the
relaying NNTP connection was set up in the first place.

-- 
Charles H. Lindsey ---------At Home, doing my own thing------------------------
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