Install testssl.sh by entering the following commands in the terminal:
sudo apt update sudo apt install testssl.sh
Description:
Command line tool to check TLS/SSL ciphers, protocols and cryptographic flaws
testssl.sh is a free command line tool which checks a server's service on any port for the support of TLS/SSL ciphers, protocols as well as recent cryptographic flaws and more. . Key features . * Clear output: you can tell easily whether anything is good or bad . * Ease of installation: It works for Linux, Darwin, FreeBSD and MSYS2/Cygwin out of the box: no need to install or configure something, no gems, CPAN, pip or the like. . * Flexibility: You can test any SSL/TLS enabled and STARTTLS service, not only webservers at port 443 . * Toolbox: Several command line options help you to run YOUR test and configure YOUR output . * Reliability: features are tested thoroughly . * Verbosity: If a particular check cannot be performed because of a missing capability on your client side, you'll get a warning . * Privacy: It's only you who sees the result, not a third party . * Freedom: It's 100% open source. You can look at the code, see what's going on and you can change it. Heck, even the development is open (github)
Homepage: https://testssl.sh/
Version: 2.9.5-1+dfsg1-2
Section: universe/utils