I've just installed the squid-2.5.STABLE4-20040119 snapshot and now I'm flooded with 
"Impossible keep-alive header" messages.
I have a parent proxy of a Trend Micro Interscan Viruswall version 3.8 running on the 
same machine.  Here's an example from the cache.log file:

2004/01/19 10:58:34| ctx: enter level  0: 
'http://wisapidata.weatherbug.com/WxAlertIsapi/WxAlertIsapi.cgi?GetAlert30&Magic=1&ZipCode=27519&StationID=RALGH&Units=0&RegNum=27560925&Version=5.02&t=1074526042&lv=0'
2004/01/19 10:58:34| httpProcessReplyHeader: Impossible keep-alive header from 
'http://wisapidata.weatherbug.com/WxAlertIsapi/WxAlertIsapi.cgi?GetAlert30&Magic=1&ZipCode=27519&StationID=RALGH&Units=0&RegNum=27560925&Version=5.02&t=1074526042&lv=0'
2004/01/19 10:58:34| ctx: exit level 0

The corresponding access.log entry says:

10.23.11.86 - - [19/Jan/2004:10:59:34 -0500] "GET 
http://wisapidata.weatherbug.com/WxAlertIsapi/WxAlertIsapi.cgi?GetAlert30&Magic=1&ZipCode=27519&StationID=RALGH&Units=0&RegNum=28333984&Version=3.0&t=1074525302&lv=0
 HTTP/1.0" 200 236 TCP_MISS:DEFAULT_PARENT 

Mike Mitchell
SAS Institute Inc.
[EMAIL PROTECTED]
(919) 531-6793
-----Original Message-----
From: Henrik Nordstrom [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, January 14, 2004 1:51 PM
To: Steve Snyder; Alex Sharaz
Cc: [EMAIL PROTECTED]
Subject: Re: [squid-users] "Impossible keep-alive header"


On Wed, 14 Jan 2004, Henrik Nordstrom wrote:

> Thinking... OK, I think I know what the bug is in that patch.

Confirmed. The logics on what keep-alive headers are impossible was a 
little too broad, sometimes triggering on fully valid HTTP/1.0 replies.

The patch has been corrected, and attached to this message you can find the 
incremental patch if you are using the snapshot release or otherwise can't easily 
get/apply the updated patch.

Regards
Henrik

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