client keepalive on high trafic site

Václav Bílek v.bilek at
Tue Sep 8 13:22:26 CEST 2009

Poul-Henning Kamp napsal(a):
> In message <4AA63655.5020707 at>, =?UTF-8?B?VsOhY2xhdiBCw61sZWs=?= writes:
>> Because i am not shure how to do that ...
>> I cant test User-Agent in vcl_deliver because 'req.' object is not
>> accesible there
>> where shoud i put such a test?
> Ahh, that gets trick if you are running a version before we enabled that.
> How much IE6 traffic do you have ?

around 15%

> If it is not too much, you could simply pass it.
will try as for-now workaround

> If it is too much for that, one dirty workaround is to define
> yourself as a backend, and send all IE6 to pass with yourself
> as backend, that way you get a cache-hit, but can use vcl_fetch
> on the pass transaction to nuke the connection closed header.

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