[squid-users] i meet a problem , --- Unsupported Request Method and Protocol'' for such connections ( non-HTTP connections ) based 80 port ----, if possible , please give me some advisement or help

[johnzeng]

Hello Amos Jeffries:

                                 Thanks again ,  and i will deploy squid 
3.5.2 in according to your advisement ,

                                  and test QQ and other application in 
the environment .  if these are any error ,  i will catch access log


                                  Best Regards




于 2015年03月01日 12:55, Amos Jeffries 写道:
> On 1/03/2015 4:46 p.m., johnzeng wrote:
>> Hello  Eliezer:
>>
>>                         Thanks for your reply ,  although squid 2.7
>> stables 9 don't support Tproxy really , but We realize the function via
>> patch third patch .
>>
>>                         Why we meet the problem (  Unsupported Request
>> Method and Protocol ) ?  although some special application communicate
>> based 80 port ,
>>
>>                         they don't use http protocol or they change http
>> protocol and method isn't GET OR POST . for example : QQ application and
>> some QQ game .
>
> In Squid-2.7 you need to use the extension_methods directive to tell
> Squid what non-HTTP/1.0 methods to accept.
>
> Squid-3 accepts the full range of HTTP/1.1 and extension methods by
> default with no configuration needed.
>
>
> I seem to remember QQ application working through Squid-3 though, so it
> should work after the upgrade. If not I would like to see a copy of what
> the message protocol they use.
>
>
>>                         But squid don't support other protocol except
>> normal http protocol  or don't support other method except GET .. of
>> http protocol , for example HEAD.
>>
>>                         So if it's a transparent proxy , and you will
>> access these application , We have to face the problem .
>>
>>                        Why i don't use highest version ago , include
>> squid 3.5.2 ,
>>
>>                        because  squid 2.7 stable 9 can support coss for
>> small http object
>>
>>                        and We don't confirm whether squid 3.5.2 can
>> support small http object via rock or coss .
>
> COSS is obsolete. It was replaced by Rock storage format.
>
> Squid has always been able to store small objects in various ways. The
> type of cache storage formats available is not affecting that.
>
>
>
>>                       i know these are some function (
>> on_unsupported_protocol ) in 3.HEAD and ,
>>
>>                       it won't be very stable or we have to use
>> trunk-non-HTTP-bypass-v8.patch for squid 3.5.2
>>
>> http://www.squid-cache.org/Versions/v3/3.HEAD/cfgman/on_unsupported_protocol.html
>>
>
> That feature change will not help you with this problem.
>
> IF the method is just an HTTP/1.1 extension method, then the protocol is
> HTTP/1.1 and *is* supported by Squid-3.2 and later.
>
>
> IF, the application is being both abusive and broken by sending a
> non-HTTP protocol Squid is rejecting abuse. Detecting and preventing
> this type of network abuse is one of the major benefits of using a proxy
> like Squid.
>
> The QQ application (and others) are responsible for A) using their own
> port suitable to the protocol they are sending, and/or B) accepting the
> HTTP messages Squid returns to them on port 80.
>
>
> Consider what would happen if you tried living underwater? does not work
> if you stay the way you are right now. You have to have breathing
> apparatus etc to make you compatible with the water environment.
>
> Same goes for applications using the registered ports 0-1024 which have
> specific protocols assigned to them. Applications need to understand and
> use HTTP to use port 80.
>
>
> Amos
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