TCP_TUNNEL

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TCP_TUNNEL

Kassir Bariq

Hi Awesome Squid Users 😊

 

I’m using Squid transparent proxy on AWS. I’m having a small problem, but I don’t really know what is happening!

 

From an EC2 in Private Subnet I’m making a request to AWS Endpoints using 443, and the request is going via Squid and says Connected, but unfortunately it is not working in the Client!

 

Checked the Logs and found that it is going via tcp_tunnel, but still not working in the client.

 

1575515309.361 20029 10.131.18.170 TCP_TUNNEL/200 430 CONNECT 52.46.200.112:443 - ORIGINAL_DST/52.46.200.112 -

1575515337.544 65650 10.131.18.158 TCP_TUNNEL/200 451 CONNECT 52.46.200.130:443 - ORIGINAL_DST/52.46.200.130 -

1575515490.666 20020 10.131.18.205 TCP_TUNNEL/200 430 CONNECT 52.46.196.121:443 - ORIGINAL_DST/52.46.196.121 -

 

Is there anything I can add to the config file that can fix this problem ?

 

Regards

Bariq


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Re: TCP_TUNNEL

Amos Jeffries
Administrator
On 5/12/19 10:13 pm, Kassir Bariq wrote:

> Hi Awesome Squid Users 😊
>
> I’m using Squid transparent proxy on AWS. I’m having a small problem,
> but I don’t really know what is happening!
>
>  
>
> From an EC2 in Private Subnet I’m making a request to AWS Endpoints
> using 443, and the request is going via Squid and says Connected, but
> unfortunately it is not working in the Client!
>


>
> Is there anything I can add to the config file that can fix this problem ?
>

TUNNEL means Squid is just shovelling bytes to/from the client and
server. This is how CONNECT transactions always worked, they were just
not logged clearly.

Any problem that is happening in a TUNNEL transaction is a private
matter between the client and server. They are communicating directly
like the proxy is not present.


Amos
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