How To Install Testssl On Debian, Ubuntu, Arch, Kali, Fedora, Raspbian And MacOS?

How To Install Testssl On Debian, Ubuntu, Arch, Kali, Fedora, Raspbian And MacOS?

testssl

Command line tool to check TLS/SSL ciphers, protocols and cryptographic flaws

Maintainer: Debian Security Tools



Section: utils

Install testssl

  • Debian apt-get install testssl.sh Click to copy
  • Ubuntu apt-get install testssl.sh Click to copy
  • Arch Linux pacman -S testssl.sh Click to copy
  • Kali Linux apt-get install testssl.sh Click to copy
  • Fedora dnf install testssl Click to copy
  • Raspbian apt-get install testssl.sh Click to copy
  • macOS brew install testssl Click to copy

testssl.sh

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)

testssl

Testing TLS/SSL encryption
To install the latest version of testssl in your favorite operating system just copy the testssl installation command from above and paste it into terminal. It will download and install the latest version of testssl 2026 package in your OS.