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Thread: Squid3 proxy unable to access ubuntuforums.org?

  1. #1
    Join Date
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    Squid3 proxy unable to access ubuntuforums.org?

    I face an annoying and hard to track its root problem with squid3 proxy server running on Ubuntu Server 12.04.

    Squid is working fine for all websites I have tried so far to access, except http://ubuntuforums.org/

    What I get is the following error:

    Code:
    ERROR
    
    The requested URL could not be retrieved
    
    The following error was encountered while trying to retrieve the URL:
    http://ubuntuforums.org/
    
    Access Denied.
    
    Access control configuration prevents your request from being allowed
    at this time. Please contact your service provider if you feel this is
    incorrect.
    
    Your cache administrator is webmaster.
    Notice also that the cache administrator is webmaster, while I have changed the cache_mgr parameter in the squid.conf file with my own e-mail and for any other errors I see it properly.

    In the access.log I see this every time I try to access the forums.

    Code:
    1355572568.095    217 192.168.0.10 TCP_MISS/403 4567 GET http://ubuntuforums.org/ - DIRECT/91.189.94.12 text/html
    The bizarre thing here is that I can access sub paths of the forum like http://ubuntuforums.org/index.php or /newthread.php (that I use right now for this post over my proxy) without any problems!

    I tried to purge the cache by using squidclient but again I get the following error:

    Code:
    # squidclient -m PURGE http://ubuntuforums.org/
    HTTP/1.0 404 Not Found
    Server: squid/3.1.19
    Mime-Version: 1.0
    Date: Sat, 15 Dec 2012 12:14:48 GMT
    Content-Length: 0
    X-Cache: MISS from localhost
    X-Cache-Lookup: NONE from localhost:3128
    Via: 1.0 localhost (squid/3.1.19)
    Connection: close

  2. #2

    Re: Squid3 proxy unable to access ubuntuforums.org?

    I'm seeing the same thing, very weird

    Let me know if you've found an explanation, or a solution, or a workaround... if not I'll see what I can come up with...

  3. #3
    Join Date
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    Re: Squid3 proxy unable to access ubuntuforums.org?

    Haven't found anything yet

    Please share if you do and happy new year by the way

  4. #4
    Join Date
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    Re: Squid3 proxy unable to access ubuntuforums.org?

    I get the same thing. I even tried to whitelist the site in the config file and restarted the service. I received the same error. Could it be blocked by ip address in the free black lists I downloaded? I'll have to research this later.

  5. #5

    Re: Squid3 proxy unable to access ubuntuforums.org?

    Quote Originally Posted by awil View Post
    I get the same thing. I even tried to whitelist the site in the config file and restarted the service. I received the same error. Could it be blocked by ip address in the free black lists I downloaded? I'll have to research this later.
    If the main page is blocked by a free blacklist all the pages underneath it should be blocked too, and the FQDN will remain the same.

    Meanwhile, it *appears* to be working for me now... maybe it was related to this issue: http://ubuntuforums.org/showthread.php?t=2091969 ?

  6. #6
    Join Date
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    Re: Squid3 proxy unable to access ubuntuforums.org?

    Working for me as well now.

    Quote Originally Posted by NickD-NLUG View Post
    If the main page is blocked by a free blacklist all the pages underneath it should be blocked too, and the FQDN will remain the same.

    Meanwhile, it *appears* to be working for me now... maybe it was related to this issue: http://ubuntuforums.org/showthread.php?t=2091969 ?

  7. #7
    Join Date
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    Re: Squid3 proxy unable to access ubuntuforums.org?

    It works after I white listed the site. I grep the ip and the website and didn't find it in the blacklist.

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