How to check the TLS version

You can check your current TLS version using the sslscan tool. To get sslscan, use one of the following methods:

• Option A: Direct installation on the host.

  This method requires you to install sslscan directly on your host system by running the following command:

  sslscan <host>
  
  E.g
  sslscan cusfqa7202527-cluster.infra-sf-ea.infra.uipath-dev.com

• Option B: Using a container management tool.

  This methods involved the use of a container management tool such as Podman or Docker to launch the sslscan container. The following example shows how to do this using Podman.

  podman run --net=host docker.io/cmoore1776/sslscan:2.1.5 <host>
  
  E.g
  podman run --net=host docker.io/cmoore1776/sslscan:2.1.5 cusfqa7202527-cluster.infra-sf-ea.infra.uipath-dev.com

Regardless of the option you choose, the output that you get should be similar to the one shown in the following code snippet:

SSL/TLS Protocols:
SSLv2     disabled
SSLv3     disabled
TLSv1.0   disabled
TLSv1.1   disabled
TLSv1.2   enabled
TLSv1.3   enabled

  TLS Fallback SCSV:
Server supports TLS Fallback SCSV

  TLS renegotiation:
Session renegotiation not supported

  TLS Compression:
Compression disabled

  Heartbleed:
TLSv1.3 not vulnerable to heartbleed
TLSv1.2 not vulnerable to heartbleed

  Supported Server Cipher(s):
Preferred TLSv1.3  128 bits  TLS_AES_128_GCM_SHA256        Curve 25519 DHE 253
Accepted  TLSv1.3  256 bits  TLS_AES_256_GCM_SHA384        Curve 25519 DHE 253
Accepted  TLSv1.3  256 bits  TLS_CHACHA20_POLY1305_SHA256  Curve 25519 DHE 253
Preferred TLSv1.2  256 bits  ECDHE-RSA-CHACHA20-POLY1305   Curve 25519 DHE 253
Accepted  TLSv1.2  128 bits  ECDHE-RSA-AES128-GCM-SHA256   Curve 25519 DHE 253
Accepted  TLSv1.2  256 bits  ECDHE-RSA-AES256-GCM-SHA384   Curve 25519 DHE 253