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From: Pascal Hambourg on 18 Jan 2010 11:30
Bob Tennent a �crit :
> >>
> >> I don't believe so. It's http that's problematic. ping and ssh work
> >> fine.
> >
> > That message from Firefox really looks like a name resolution failure.
>
> Then why would it connect fine using privoxy?

When using a proxy, a browser does not perform name resolution itself,
it leaves it to the proxy.

> > What about telnet to port 80 of some web server hostname ?
>
> Works.

Did you achieve a complete HTTP transaction or just the TCP connection ?
From: David W. Hodgins on 18 Jan 2010 11:31
On Mon, 18 Jan 2010 11:18:17 -0500, Bob Tennent <BobT(a)cs.queensu.ca> wrote:

> Then why would it connect fine using privoxy?

My guess is ipv6 is not working. In firefox, load about:config.
Put ipv6 in the filter. Double click the setting for
network.dns.disableIPv6 and change it to true.

Regards, Dave Hodgins

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From: Pascal Hambourg on 18 Jan 2010 11:45
David W. Hodgins a �crit :
> On Mon, 18 Jan 2010 11:18:17 -0500, Bob Tennent <BobT(a)cs.queensu.ca> wrote:
>
>> Then why would it connect fine using privoxy?
>
> My guess is ipv6 is not working.

AFAIK, IPv6 not working would not produce "Server not found" in Firefox.

> In firefox, load about:config.
> Put ipv6 in the filter. Double click the setting for
> network.dns.disableIPv6 and change it to true.

If this works, it could also mean that it is a DNS issue. This option
prevents Firefox from issuing DNS qeries for IPv6 addresses (type AAAA)
before issuing DNS queries for IPv4 addresses (type A). Such requests
should be harmless even on an all IPv4 network although the queried DNS
server or DNS relay is broken. I have seen it.
From: Bob Tennent on 18 Jan 2010 13:35
On Mon, 18 Jan 2010 17:30:28 +0100, Pascal Hambourg wrote:

>> > What about telnet to port 80 of some web server hostname ?
>>
>> Works.
>
> Did you achieve a complete HTTP transaction or just the TCP connection ?

How do I do that? If I enter q (I was trying to quit!), I get a dump of
index.html.
From: Pascal Hambourg on 18 Jan 2010 14:49
Bob Tennent a �crit :
> >
> > Did you achieve a complete HTTP transaction or just the TCP connection ?
>
> How do I do that?

To get <http://www.example.com/path/to/document> :

GET /path/to/document HTTP/1.1
Host : www.example.com

Then press enter again to add an empty line.

> If I enter q (I was trying to quit!), I get a dump of index.html.

The real index.html or a page containing an error message such as
"Method not implemented" ?
Anyway, if you got some HTML from the server then I guess it counts as a
transaction.
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