Re: [squid-users] Keep-Alive header not being displayed

From: Alex Rousskov <rousskov_at_measurement-factory.com>
Date: Fri, 12 Sep 2008 08:27:42 -0600

On Sat, 2008-09-13 at 00:47 +1200, Amos Jeffries wrote:
> Alex Rousskov wrote:
> > On Thu, 2008-09-11 at 16:42 -0700, JL wrote:
> >> In my headers, the "HTTP_KEEP_ALIVE = 300" is not displaying and I'm
> >> not sure why. I have the following header_access rules:
> >>
> >> header_access X-Forwarded-For deny all
> >> header_access Proxy-Connection deny all
> >> header_access Via deny all
> >> header_access All allow all
> >>
> >> With these rules I get the following headers:
> >>
> >> HTTP_ACCEPT = image/gif, image/x-xbitmap, image/jpeg, image/pjpeg,
> >> application/x-shockwave-flash, application/vnd.ms-excel,
> >> application/vnd.ms-powerpoint, application/msword, */*
> >> HTTP_ACCEPT_ENCODING = gzip, deflate
> >> HTTP_ACCEPT_LANGUAGE = en-us
> >> HTTP_CONNECTION = keep-alive
> >> HTTP_COOKIE = __utma=131785806.1971945049.1220944678.1221168849.1221173272.5;
> >> __utmz=131785806.1220944678.1.1.utmccn=(direct)|utmcsr=(direct)|utmcmd=(none);
> >> __utmb=131785806; __utmc=131785806
> >> HTTP_HOST = www.proxyjudge.biz
> >> HTTP_REFERER = http://proxyjudge.biz/
> >> HTTP_UA_CPU = x86
> >> HTTP_USER_AGENT = Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1;
> >> .NET CLR 1.1.4322; .NET CLR 2.0.50727)
> >> REMOTE_ADDR = XXX.XXX.XXX.XXX
> >> REMOTE_PORT = 51600
> >> REQUEST_METHOD = GET
> >> REQUEST_URI = /az.php
> >>
> >> I have even tried removing all the header_access rules except for
> >> header_access All allow all. However, HTTP_KEEP_ALIVE = 300 does not
> >> display.
> >>
> >> I am using Squid Version 2.6.STABLE6 on Red Hat Enterprise Linux 5.
> >
> > Do you see "Keep-Alive: 300" header in the packets that are sent to
> > Squid? Do you see "Keep-Alive: 300" header in the packets that Squid
> > sends to the origin server? If yes, perhaps Apache httpd (or equivalent)
> > is "translating" your Keep-Alive header into the Connection header, with
> > a value of Keep-Alive.
> >
> > What is the purpose of sending that Keep-Alive header? Can you send a
> > custom header like X-Alive?
> >
> > HTH,
> >
> > Alex.
> >
> >
>
> On a side note. Following that test link myself shows me that 3-HEAD is
> still sending Keep-Alive: header. I assume this is one that was
> optimized out of 2.6 for some reason?

Looks like this is a known bug in Squid3:
http://www.squid-cache.org/bugs/show_bug.cgi?id=419

Alex.
Received on Fri Sep 12 2008 - 14:28:34 MDT

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