Note: Do these steps for each server that you want to send logs to your Logstash Server. For instructions on installing Logstash Forwarder on Debian-based Linux distributions (e.g. Ubuntu, Debian, etc.), refer to the Set Up Logstash Forwarder section of the Ubuntu variation of this tutorial.
Copy SSL Certificate and Logstash Forwarder Package
On Logstash Server, copy the SSL certificate to Server (substitute with your own login):