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Re: Proxies and gethostbyname

From: Koen Holtman <koen@win.tue.nl>
Date: Tue, 12 May 1998 12:16:13 +0200 (MET DST)
Message-Id: <199805121016.MAA20761@wsooti08.win.tue.nl>
To: "David W. Morris" <dwm@xpasc.com>
Cc: frystyk@w3.org, http-wg@cuckoo.hpl.hp.com, jg@w3.org
David W. Morris:
>
>
>On Mon, 11 May 1998, Henrik Frystyk Nielsen wrote:
>
>> I think there is one situation that 504 doesn't cover and that is if the
>> proxy doesn't *want* to proxy a certain URI, maybe because it can't
>
>I continue to disagree ... there is a distinct difference from the 
>perspective of recovery whether the DNS consulted by proxy is unable
>to resolve the host name or whether the host fails to respond. Hiding
>all failures under a single code does nothing for usability or
>perceived reliability.

I agree with David that these two errors are different and should have
different codes.

To inject some current practice into this debate: I just tested two
different proxy servers and both return a 500 with an explanatory
response body when the URL does not have a DNS entry.

Koen.
Received on Tuesday, 12 May 1998 03:18:55 EDT

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