[squid-users] flickr.com redirect error
ozgurbtr at gmail.com
Mon Jun 27 09:04:15 UTC 2016
This is the via header sent by my local proxy as part of the request.
*Via: 1.1 ubuntuozgen (squid/3.5.19)*
It is not fqdn but ubuntu concatanated with a Turkish name so it is highly
unlikely that yahoo have such named reverse proxy. I could not decrypt the
squid <--> flicker traffic yet this is from pcap output from another http
site but i think it should be same right?
On Sat, Jun 25, 2016 at 3:10 PM, Amos Jeffries <squid3 at treenet.co.nz> wrote:
> On 25/06/2016 6:14 p.m., Rafael Akchurin wrote:
> > Hello Amos,
> > The Via from mine is:
> > Via:"http/1.1 fts110.flickr.bf1.yahoo.com (ApacheTrafficServer [cMs f
> ]), http/1.1 r02.ycpi.ams.yahoo.net (ApacheTrafficServer [cMsSf ]), 1.1
> qlproxy (squid/3.3.8)"
> > Might it be the error when constructing via contents in squid? As it
> starts with 1.1 while other constructed by Yahoo all start with http/1.1 ?
> I think thats the Via on the reply coming back, not the request going out.
> If that is actually your outgoing Via header *to* Yahoo. Then it says
> the message has already been through their service. Thus a loop.
> If Yahoo have any machine whose private hostname is "qlproxy" then your
> Via header will match that machine (or qlproxy.*.yahoo.com) and again
> they will detect a loop.
> ==> this will be true on whatever the outgoing Via really is from your
> "qlproxy" proxies.
> ==> This is one of several reasons why I keep saying the
> visible_hostname is *required* to be a FQDN, not a local one-label name.
> And why Squid attempts to validate any auto-detected value in DNS before
> using them.
> What I'm expecting to see in Ozgur's header is either "localhost" or a
> simple one-label name like yours which might match something inside the
> private portion of the recipients CDN network.
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> squid-users at lists.squid-cache.org
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