There are 2 repositories under knock topic.
Software of Development API REST with RUBY
Example application to showcase how to integrate Knock (written in NodeJS)
Make jumphosts and knock easier without messing up your ssh config
Let's go to the infinity journey. Travel Knock is a SNS application of traveling around the world that you've never been.
Rails5 React Token Auth via Knock gem
JWT Rails 6+ API authentication gem, re-implementation of Knock.
Official .NET SDK for interacting with the Knock API
A web page demonstrating the phenomenon of engine knock in combustion engines.
Simple port knocking client written in GoLang