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Testing TLS/SSL encryption anywhere on any port. https://testssl.sh/
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Readme.md

Intro

Gitter

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 some cryptographic flaws. It's designed to provide clear output for your "is this good or bad" decision.

It is working on every Linux distribution out of the box with some limitations of disabled features from the openssl client -- some workarounds are done with bash-socket-based checks. It also works on BSD and other Unices out of the box, supposed they have /bin/bash and standard tools like sed and awk installed. MacOS X and Windows (using MSYS2) work too. OpenSSL version >= 1 is highly recommended.

On github you will find in the master branch the development version of the software -- with new features and maybe some bugs. For the stable version and a more thorough description of the software please see testssl.sh.

New features in the upcoming stable release 2.6 are:

  • display matching key (HPKP)
  • logjam, not named yet, but display dh/ecdh bits on negotiated and every cipher

more see https://github.com/drwetter/testssl.sh/issues?q=is%3Aopen+is%3Aissue+milestone%3A%222.6+%2F+2.5dev%22

Contributions, feedback, also bug reports are welcome. For contributions please note: One patch per feature -- bug fix/improvement. Please file bug reports @ https://github.com/drwetter/testssl.sh/issues .

Update notification here or @ twitter.