JuiceSSH PortKnocker Plugin is an open-source plugin designed to provide an extra layer of security to your SSH connection. This JuiceSSH plugin requires JuiceSSHor greater to be installed. Port knocking is used to expose your SSH port only if a specific set of TCP or UDP packets are received. To use this plugin, you need to have a port knocking daemon like 'knockd' running on your server. The plugin is available for free and welcomes all contributors. For more information, see the plugin's GitHub repository and feel free to submit pull requests.

Port knocking is a widely used technique to add an additional layer of security to your SSH connection, and with JuiceSSH PortKnocker Plugin, you can easily manage it. The plugin is easy to install and use, and it requires you to have JuiceSSHor greater installed. Once installed, you can use it to expose your SSH port only when specific TCP or UDP packets are received. This open-source plugin is free and available to everyone, and it welcomes all contributors. If you want to learn more about it, visit the plugin's GitHub repository and submit pull requests.