Start IIS Crypto, and you can see that only TLS 1.2 checkbox is selected in Server Protocols and Client protocols. Scroll down to Configuration and check the Protocols. This time it’s showing us an overall rating A. SSL Labs by Qualys is one of the most popular SSL testing tools to check all the latest vulnerabilities & misconfiguration. NET applications including Visual Studio. Go to Qualys SSL Labs and fill in the domain to get the report. If upgrading Visual Studio is not an option, you can set a set a machine-wide registry key to enable TLS 1.2 on all.
If it is necessary to support a wider cipher suite set, then we can also select this right here, ELBSecurityPolicy-FS-1-2-2019-08, without the restricted tag on that. The easiest way to avoid these issues is to upgrade to the latest version of Visual Studio as it already uses TLS 1.2 for all HTTPS connections. But we do have a significantly more secure TLS configuration, supporting only TLS 1.2 with strong ciphers. You could either enable tls 1.2 in internet options - advanced or registry. CBC mode is not favored in TLS connections. It is a good practice to disable cipher block chaining mode wherever possible, regardless whether it is AES, 3DES, Camellia, or any other block cipher being used there. To enable the installation to support the TLS 1.2 protocol, follow these steps: Start Registry Editor. These other ones are all “No.” Our limited set of cipher suites, specifically SSL Labs is complaining because we do support CBC mode (cipher block chaining mode) in AES. Before you modify it, back up the registry for restoration in case problems occur. Restart your Google Chrome browser by closing the browser window and reopening it. Check for the TSL protocol in use by scrolling down. Select the Advanced tab in the Internet Properties box.
Scrolling down to see the details, we see that we do only support TLS version 1.2. To enable TLS 1.2 Windows 11, follow the below steps: Press Windows + R to open the Run dialogue box. Then, look at an updated version of SSL Labs run after our change and we see that it is now graded at an A with “Protocol Support” being all the way up to the top, scoring 100 out of 100 on that. Come back over here to our webpage, refresh a few times, make sure that we’re getting to both webservers, sure enough Webserver-1 and Webserver-2 are showing up.