Update the TLS version used in TransparentClientHandler.cs

justcoding121 / titanium-web-proxy

A cross-platform asynchronous HTTP(S) proxy server in C#.

MIT License

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Update the TLS version used in TransparentClientHandler.cs #789

Closed keyoti closed 4 years ago

keyoti commented 4 years ago

Doneness:

[ x] Build is okay - I made sure that this change is building successfully.
[x ] No Bugs - I made sure that this change is working properly as expected. It doesn't have any bugs that you are aware of.
[ x] Branching - If this is not a hotfix, I am making this request against the master branch

I found that using Titanium as a reverse proxy doesn't work with HTTPS unless you update the TLS version to 1.2 because most browsers are not accepting the older version used as default.

lslqtz commented 3 years ago

I encountered a situation where the client software does not support SSL versions above TLSv1.0 (or TLSv1.1), and I tried to downgrade back to before this change, but the browser will prompt that the SSL version is too old (NET::ERR_SSL_OBSOLETE_VERSION) So I changed it to SslProtocols.Tls | SslProtocols.Tls11 | SslProtocols.Tls12, this solves all my problems