testssl.sh/Readme.md

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## Intro
[![Build Status](https://travis-ci.org/drwetter/testssl.sh.svg?branch=master)](https://travis-ci.org/drwetter/testssl.sh)
[![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/drwetter/testssl.sh?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
`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.
#### Key features
* Clear output: you can tell easily whether anything is good or bad
* Ease of installation: It works for Linux, Darwin, FreeBSD, NetBSD 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)
#### Status
_Here in the master branch you find the stable version 2.8rc3 of the software, it
superseds 2.6. Version 2.8 is currently being finalized_ . 2.9dev is the new
developement branch For the **a more thorough description of the command line options**
please see [testssl.sh](https://testssl.sh/ "Go to the site with the stable version
and more documentation") or https://github.com/drwetter/testssl.sh/wiki/Usage-Documentation.
#### Compatibility
testssl.sh is working on every Linux/BSD 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 other
unixoid system out of the box, supposed they have `/bin/bash` and standard
tools like sed and awk installed. MacOS X and Windows (using MSYS2 or
cygwin) work too. OpenSSL version >= 1 is a must. OpenSSL version >= 1.0.2
is needed for better LOGJAM checks and to display bit strengths for key
exchanges.
#### Features in [2.8 stable](Readme.md#stable)
Done so far:
* Trust chain check against certificate stores from Apple (OS), Linux (OS),
Microsoft (OS), Mozilla (Firefox Browser), works for openssl >=1.0.1
* IPv6 (status: 80% working, details see
https://github.com/drwetter/testssl.sh/issues/11
* works now on servers requiring a x509 certificate for authentication
* extensive CN <--> hostname check
* SSL Session ID check
* Avahi/mDNS based name resolution
* HTTP2/ALPN protocol check
* Logging to a file / dir
* Logging to (flat) JSON + CSV
* HPKP checks now also for Root, intermediate SPKIs
* Check for multiple server certificates
* Browser cipher simulation: what client will connect with which cipher + protocol
* GOST cipher+certificate improvements
* Assistance for color-blind users
* Even more compatibility improvements for FreeBSD, NetBSD, Gentoo, RH-ish, F5 and Cisco systems
* Considerable speed improvements for each cipher runs (-e/-E)
* More robust SSLv2 + TLS socket interface
* seperate check for curves
* OpenSSL 1.1.0 compliant
* check for DROWN
* Whole number of bugs squashed
Update notification here or @ [twitter](https://twitter.com/drwetter).
#### Contributions
Contributions, feedback, bug reports are welcome! For contributions please
note: One patch per feature -- bug fix/improvement. Please test your
changes thouroughly as reliability is important for this project.
There's [coding guideline](https://github.com/drwetter/testssl.sh/wiki/Coding-Style).
Please file bug reports @ https://github.com/drwetter/testssl.sh/issues.
#### Documentation
For a start see the
[wiki](https://github.com/drwetter/testssl.sh/wiki/Usage-Documentation).
Help is needed here.
#### Bug reports
Please file bugs in the issue tracker. Do not forget to provide detailed information, see https://github.com/drwetter/testssl.sh/wiki/Bug-reporting. (Nobody can read your thoughts
-- yet. And only agencies your screen) ;-)
----
## External/related projects
Please address questions not specifically to the code of testssl.sh to the
respective projects
#### Cool web frontend
* https://github.com/TKCERT/testssl.sh-webfrontend
#### mass scanner w parallel scans and elastic searching the results
* https://github.com/TKCERT/testssl.sh-masscan
#### Ready-to-go docker images are available at:
* https://quay.io/repository/jumanjiman/testssl
* https://hub.docker.com/r/mvance/testssl/
#### Brew package
* see [#233](https://github.com/drwetter/testssl.sh/issues/233) and
[https://github.com/Homebrew/homebrew](https://github.com/Homebrew/homebrew)