<div dir="ltr"><div><div><div>Hi,<br><br></div>thx for support.<br><br></div><div>I found second running squid on same box. I shut-down the second squid.<br></div><div>But the problems are not gone......<br></div><div><br></div>Sorry I don't have access to the router pc :-( I can not get the rule ....<br><br></div>I have set up web browsers to use direct squid with 3129.<br><div>But the result its same. <br></div><div>I found another logs too:<br><br>2015/02/14 23:52:25.957 kid1| SECURITY ALERT: Host header forgery detected on local=<a href="http://192.168.15.2:3129" target="_blank">192.168.15.2:3129</a> remote=<a href="http://10.0.0.7:54648">10.0.0.7:54648</a> FD 77 flags=33 (intercepted port does not match 443)<br>2015/02/14 23:52:25.957 kid1| SECURITY ALERT: By user agent: Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko/20100101 Firefox/12.0<br>2015/02/14 23:52:25.957 kid1| SECURITY ALERT: on URL: <a href="http://www.youtube.com:443">www.youtube.com:443</a><br><br></div><div>OS ist Slackware on squid box. <br>All web browser on client PCs is set to use proxy server<br><br></div><div>Topology is:<br></div><div>Clients PC connected to switch -> switch to Router pc -> squid its on DMZ Von Router pc<br></div><div><br></div><div>thx for support<br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Feb 12, 2015 at 3:34 PM, Luis Miguel Silva <span dir="ltr"><<a href="mailto:luismiguelferreirasilva@gmail.com" target="_blank">luismiguelferreirasilva@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I bumped into this same "forwarding loop" problem yesterday!<div>In my case, it was because I had two transparent proxies in the same network and was basically redirecting traffic twice:</div><div>[internet] <-> [appliance 1] <-> [appliance 2] <-> [client computer]</div><div><br></div><div>I mistakenly added iptables redirect rules in both appliance 1 and appliance 2 and that caused Squid to spit out that "forwarding loop detected" error.</div><div><br></div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Feb 12, 2015 at 4:40 AM, Antony Stone <span dir="ltr"><<a href="mailto:Antony.Stone@squid.open.source.it" target="_blank">Antony.Stone@squid.open.source.it</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Thursday 12 Feb 2015 at 11:26, naser sonbaty wrote:<br>
<br>
> Hi,<br>
><br>
> Internet is connected to Router PC<br>
><br>
> Only trafic to port 80 is send to squid.<br>
<br>
Yes, I know that, but traffic *from* where?<br>
<br>
Please answer the question below. Even better, show us the redirect rule<br>
you're using on the router to do it.<br>
<br>
> On Thu, Feb 12, 2015 at 11:58 AM, Antony Stone wrote:<br>
> ><br>
> > Have you configured the router to redirect port 80 traffic from the<br>
> > Client PC to Squid 3129, or have you configured it to redirect *all* port<br>
> > 80 traffic (including from Squid) to Squid 3129?<br>
> ><br>
> > Looks like the Router is making Squid talk to itself.<br>
<br>
<br>
Regards,<br>
<br>
<br>
Antony.<br>
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