Re: [squid-users] Help with accelerated site

Hi Adam,

Did you read the page:
http://www.squid-cache.org/Versions/v2/2.7/cfgman/http_port.html

Under "vhost", it clearly says:
Accelerator mode using Host header for virtual domain support. Implies accel.

So, if you want Squid listener on 3128 to be acting as "forward
proxy", then don't use "vhost". When your internal users are hitting
squid for regular internet usage, every port 80 website is
automatically proxied, including your internal ones.

If it is not working, then there must be a relevant line in the
"access.log" or "cache.log" which will tell you what happened to that
request.

You are configuring the same box for both "forward" and "reverse"
proxy, which can be tricky. If you are indeed a "developer" (and no,
writing HTML does not count), then you need to use your programming
hat a bit more when you're trying to even configure open source
software.

Did you read:
http://wiki.squid-cache.org/SquidFaq/ReverseProxy
It explains a lot of "concepts". Please go through them, and try to
understand how all this is supposed to work.

Please do not "bombard" the list with email after email without
getting a response first. Not nice.

Most irritating is when someone:
1. appears to not have "read the manual" with great care
2. appears to have not "searched" the internet for this problem
3. starts to blame the software because they can't make it work
4. starts to "whine" on the mailing list, and sends emails one after
another without waiting for an acceptable time (at least 48 hours) for
someone to respond

Regards
HASSAN

On Mon, Mar 29, 2010 at 1:55 AM, Adam_at_Gmail <adbasque_at_googlemail.com> wrote:
>
> Hi Again,
> Well my local network can't access the Internet since I had to put the vhost option on the http_port 3128
> They can access my sites internally not a problem, but the problem is they can no longer access the internet
> I have kept the original config
> The only thing I have changed was adding the acceleration mode for my backend server (sites)  and add the vhost option after
> the http_port 3128
> like this
> http_port 3128 vhost
>
> I hope that makes more sense
> Regards
> Adam
> ----- Original Message ----- From: "Ron Wheeler" <rwheeler_at_artifact-software.com>
> To: "Adam_at_Gmail" <adbasque_at_googlemail.com>; <squid-users_at_squid-cache.org>
> Sent: Sunday, March 28, 2010 8:40 PM
> Subject: Re: [squid-users] Help with accelerated site
>
>
>> Are you trying to build an accellerator for your site or a proxy.
>>
>> Pick one and get it to work.
>>
>> The config that I sent you is an accelerator.
>>
>> I would suggest to stick with the accelerator and let your inside guys hit your server on port 80.
>> 1) Put your backend server back on port 80
>>
>> http_port 80 accel vhost defaultsite=www.mysite.org
>> cache_peer 192.168.1.3 parent 80 .... whatever I had in my config should be fine once you  change my 81 to 80. I needed to use 81 since I had both apache and squid on the same machine. You do not have this problem.
>>
>>
>> This way your inside guys are still hitting your backend the old fashioned way and your clients are coming through your front door with a caching proxy.
>>
>> Get rid of the acl stuff until you get it going and then decide how to block people.
>> Check my acl settings but I do not recall doing anything to control access.
>>
>>
>> KISS
>>
>> Good luck
>> Ron
>>
>>
>>
>>
>> Adam_at_Gmail wrote:
>>>
>>> Hi Amos,
>>> Thanks for your time
>>> at the moment my config is as follow it's working as far is the acceleration mode is concerned
>>>
>>> http_port 80 accel vhost defaultsite=www.mysite.org
>>>
>>> cache_peer 192.168.1.3 parent 81 0 no-query originserver name=main
>>> acl out_sites dstdomain www.mysite.org          www.mysite.com www.mysite.net
>>>
>>> http_access allow our_sites
>>> cache_peer_access main allow our_sites
>>> cache_peer_access deny all
>>>
>>> I can access my 3 websites from inside my network and from the "Internet" no problems
>>> apart for it being a little slower than before, but it's working
>>>
>>> The problem I have right now is None of clients can access the internet
>>> The error as before "The requested URL could not be retrieved"
>>>
>>> here is the other part of config
>>>
>>> acl manager proto cache object
>>> acl localhost src 127.0.0.1/32
>>> acl to_localhost dst 127.0.0.0/8.0.0.0/32
>>> acl localnet src 10.0.0.0/8
>>> acl localnet src 172.16.0.0/12
>>> acl our_network 192.168.1.0/24
>>>
>>> http_access allow manager localhost
>>> http_access deny manager
>>>
>>> http_access allow localnet
>>> http_access deny all
>>>
>>> http_access allow our_network
>>> http_access deny all
>>>
>>> htcp_access allow localnet
>>> htcp_access deny all
>>> icp_access allow localnet
>>> icp_access deny all
>>>
>>> http_port 3128 vhost    (note if I remove the vhost I won't access my websites) if I leave it I can't access the internet from my local network)
>>>
>>> No "Bind" error at this time
>>>
>>>
>>>
>>>
>>> I hope that would help see if there's anything wrong with the configuration
>>>
>>> Regards
>>> Adam
>>>
>>>
>>>
>>> ----- Original Message ----- From: "Amos Jeffries" <squid3_at_treenet.co.nz>
>>> To: <squid-users_at_squid-cache.org>
>>> Sent: Sunday, March 28, 2010 8:06 AM
>>> Subject: Re: [squid-users] Help with accelerated site
>>>
>>>
>>>> Adam_at_Gmail wrote:
>>>>>
>>>>> Hi Ron,
>>>>> Thanks for your reply and thanks for your time
>>>>>
>>>>> This is perhaps the 10th time I uninstalled it and reinstalled it
>>>>> And this is the very first time I could access my websites internally, externally nothing yet, I am still getting the error
>>>>
>>>> This error:
>>>>
>>>>> The following error was encountered while trying to retrieve the URL: /
>>>>>
>>>>
>>>> ... appearing in a reverse-proxy setup means Squid received a reverse-proxy/accelerated request intended for a web server on a port without "accel" flag configured.
>>>>
>>>>
>>>> Please read all my notes below right to the end of the email before changing anything. I'm commenting on each fine detail and what it means...
>>>>
>>>>>
>>>>> My clients can all access the internet, Yes I am sure that there's a misconfiguration in my config file but I followed every tutorial
>>>>>
>>>>> trying desperately to get something up, after a while you're saturated and very tired, bouncing from on issue to another
>>>>>
>>>>
>>>> ... so, we need you to stop bouncing and concentrate on one issue at a time. When we are satisfied that you are understanding that one move on ...
>>>>
>>>>> I checked and triple checked my iptables rules everything looks fine so far
>>>>>
>>>>> For instance, my backend server is listening right now on port 81, why did I put it on port 81 because I was getting
>>>>>
>>>>> Cannot bind to .... in the log file
>>>>>
>>>>> so I changed it to 81 and I am getting the same error, there's absolutely nothing else in my entire network that is using that port
>>>>>
>>>>> So why can't it bind to port 81? You see the type of things that can drive you through the wall
>>>>>
>>>>> at the moment I have only three machines
>>>>>
>>>>> A is Running the Proxy and the Router (IPTABLES)
>>>>>
>>>>> B is the back end server
>>>>>
>>>>> C is the DNS/DHCP servers
>>>>>
>>>>> And only the backend server that is currently listening on port 81 and before that it was listening on port 80
>>>>>
>>>>> no matter which port I put in my config I get the "Cannot bind to ...." in the log file
>>>>
>>>> ... from the below I'd guess you are changing both the Squid http_port and the apache listening "Port" entries at the same time in your tests.
>>>>
>>>>
>>>>>
>>>>> here is a bit of my config
>>>>>
>>>>> *********************************************************************
>>>>>
>>>>> http_port 192.168.1.3:81 accel parent vhost defaultsite=www.mysite.org
>>>>
>>>> The tutorial and advice so far as I've seen has been to place Squid listening on "http_port 80 accel vhost" and apache listening on "Port 81".
>>>>
>>>> Okay stop here. Check that. Make it so. Restart both software if needed.
>>>>
>>>> If another "bind" error comes up during the restart let us know right now.
>>>>
>>>>
>>>> Continue reading...
>>>>
>>>>>
>>>>> cache_peer 192.168.1.3 parent 81  0 no-query originserver name=main
>>>>>
>>>>
>>>> Those two lines are (or 'were' right?) a loop.
>>>>
>>>>  Squid listening on 192.168.1.3 port 81 is to fetch requests from source server listening on 192.168.1.3 port 81.
>>>>
>>>> What you should have after my suggested change above is:
>>>>  Squid listening on port 80 fetched from server on port 81.
>>>>
>>>>
>>>> Test this:
>>>>   fetch a request for http://192.168.1.3:81/
>>>> EXPECTED: results in the apache "it works", or your <VirtualHost *> site.
>>>>
>>>>  fetch a request for http://192.168.1.3/
>>>>
>>>> EXPECTED: results in the apache "it works", or your <VirtualHost*> site. Received through Squid.
>>>>
>>>>
>>>> (using wget, curl, or squidclient to display the response errors the second fetch there should contains Via: header which is not present in the first fetch.)
>>>>
>>>>
>>>> IF (and only if) there was no "bind" error, and the headers check above fails to show a Via: header properly. We work on that in next email...
>>>>
>>>>
>>>>> acl dstdomain our_sites dstdomain www.mysite1.org    www.mysite2.com www.mysite3.net
>>>>>
>>>>> http_allow_access main allow our_sites
>>>>>
>>>>> http_peer_access main deny all
>>>>>
>>>>> At the moment all of these sites are running on the same server (virtualhost)
>>>>>
>>>>> The only thing I am not sure of is probably the cache_peer directive
>>>>>
>>>>> "cache_peer 192.168.1.3 parent 81  0 no-query originserver name=main"
>>>>>
>>>>> If it's wrong then I don't know what to put in there
>>>>
>>>> The IP address and port of your Apache server.
>>>>
>>>>
>>>> Amos
>>>> --
>>>> Please be using
>>>>  Current Stable Squid 2.7.STABLE8 or 3.0.STABLE25
>>>>  Current Beta Squid 3.1.0.18
>>>
>>>
>>
>
>
Received on Sun Mar 28 2010 - 20:58:16 MDT