[squid-users] Reverse proxy for HTTPS cloudfront server

Amos Jeffries squid3 at treenet.co.nz
Tue Feb 14 02:40:34 UTC 2017

On 14/02/2017 4:40 a.m., Philip Munaawa wrote:
> I am trying to reverse proxy a site hosted on cloudfront, using the normal
> https_port accel. I have the key/cert pair for the origin. The cloudfront
> uses TLS/SNI to negotiate an SSL connection. However, when I try to connect
> through the proxy, I get the error below in the logs:
> Error negotiating SSL on FD 39: error:14094410:SSL
> routines:SSL3_READ_BYTES:sslv3 alert handshake failure (1/0/0)
> I have seen a similar issie with nginx, which was resolved by adding a
> switch to send the server_host_name. see:
> http://stackoverflow.com/questions/25329941/nginx-caching-proxy-fails-with-ssl23-get-server-hellosslv3-alert-handshake-fail
> Does squid (3.5.24) have a similar switch/functionality?

The only thing that SSL23_SERVER_HELLO and SSL3_READ_BYTES have in
common is that they are errors. So no they are not "similar".

The server is closing the connection without reporting what the problem
actually is. Squid-3.5 should already be sending SNI using the
cache_peer hostname or request-URL hostname.

has some hints from Dave Thompson on how to find out what is going on
with the server.


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