Re: [squid-users] Help with accelerated site

From: Ron Wheeler <rwheeler_at_artifact-software.com>
Date: Wed, 24 Mar 2010 21:58:04 -0400

Adam_at_Gmail wrote:
> Hello there,
> Thanks for the reply Ron and Amos
>
>
> Maybe my original e-mail wasn't clear a bit confusing I am sorry if I
> confused you
>
> I have squid running on Machine A with let's say local ip 192.168.1.4
> the backend server is running on machine B and ip address 192.168.1.3
>
> Now, instead of getting the website that is located on Machine B
> 192.168.1.3 which is listening on port 81 not 80.
> I am getting the default Apache Page on the Proxy server Machine which
> is 192.168.1.4
>
> And I do have the vhost in my configuration
> Well there are two apaches running on the two machines, the proxy
> machine and the web-server machine, except the web-server apache
> listens on port 81, logically (technically) speaking it should work,
> but for some reason it doesn't.
> I hope it makes more sense to you what I am trying to describe here

Very helpful.
You can not have apache listening for port 80 on 192.168.1.4 and Squid
trying to do the same thing.
Only one process can have port 80.
You will very likely find a note in the squid logs that says something
to the effect that squid can not bind to port 80.
If you shutdown apache on 192.168.1.4 and restart squid, your proxy will
work (if the rest of the configuration is correct)
If you then try to start apache on 192.168.1.4 it will certainly
complain loudly about port 80 not being free.

If you want to use Apache on both 192.168.1.4 and 192.168.1.3 you need
to set the apache on 192.168.1.4 to listen on port 81 and set squid to
proxy to the apache on 192.168.1.4 and use apache's proxy and vhost
features to reach 192.168.1.5 which can be set to listen on port 80.
This will support
browser=>Squid on 192.168.1.4 ==> Apache on 192.168.1.4:81 (vhost)
==>Apache 192.168.1.3:80
That is a pretty common approach.

Ron

>
> Thank you all for your help
> Regards
> Adam
>
> ----- Original Message ----- From: "Amos Jeffries" <squid3_at_treenet.co.nz>
> To: <squid-users_at_squid-cache.org>
> Sent: Thursday, March 25, 2010 1:01 AM
> Subject: Re: [squid-users] Help with accelerated site
>
>
>> On Wed, 24 Mar 2010 19:48:27 -0400, Ron Wheeler
>> <rwheeler_at_artifact-software.com> wrote:
>>> What is squid proxying?
>>> Usually the normal behaviour is exactly what you are getting since
>>> squid
>>
>>> normally proxies Apache on 80.
>>> Browser ==> Squid on 80==>proxied to Apache on port 81.
>>>
>>>
>>> If Squid is not proxying Apache, then it looks like you have Apache
>>> running on 80.
>>>
>>> If you are trying to redirect port 80 to another program that is not
>>> Apache, then you need to get Apache off port 80.
>>> You can not have 2 programs listening to port 80.
>>>
>>> If Apache is running and owns port 80, Squid will not start.
>>>
>>> If this is the case, You likely have errors in the logs to this effect.
>>>
>>> Shut down Apache and and restart Squid.
>>>
>>> Try to start Apache and now it should howl with anger (or log in anger)
>>> at not getting port 80.
>>>
>>>
>>> Ron
>>>
>>> Adam_at_Gmail wrote:
>>>> Hello All,
>>>>
>>>> I have followed this configuration, but when I try and access the
>>>> website from outside my network
>>>> All I get is the default page of the apache on the machine where the
>>>> Squid proxy is installed
>>>>
>>>> Here is the link:
>>>>
>>>> http://wiki.squid-cache.org/ConfigExamples/Reverse/BasicAccelerator
>>>>
>>>> here is the configuration I followed
>>>>
>>>> http_port 80 accel defaultsite=your.main.website.name(changed my port
>>>> to 81 my backend server listens on port 81)I havehttp_port 81 accel
>>>> defaultsite=www.my.website.org vhostand then used thiscache_peer
>>>> ip.of.webserver parent 80 0 no-query originserver
>>>> name=myAccelcache_peer 192.168.1.5 parent 81 0 no query originserver
>>>> name=myAccel(myAccel I have put a name)and then acl our_sites
>>>> dstdomain my.website.org
>>>> http_access allow our_sites
>>>> cache_peer_access myAccel allow our_sites
>>>> cache_peer_access myAccel deny all Anybody with any suggestions
>>>> please?Any help would be appreciated thank youRegardsAdam
>>>>
>>
>> Sorry, took me a while to un-mangle that original email text.
>>
>> You are missing the "vhost" option on https_port 80. All traffic Squid
>> receives on port 80 will go to Apache's default virtual host.
>>
>> Amos
>>
>
>
Received on Thu Mar 25 2010 - 01:58:16 MDT

This archive was generated by hypermail 2.2.0 : Sat Mar 27 2010 - 12:00:05 MDT