I am using ELK stack for couple of months now and the primary Input so far I have is the WebServer logs and ATG logs from Apache and IIS server.
Using the logs I have been able to do all possible visualizations and they look good.
Our team does monitoring of production servers which also include CPU usage , Disk Usage and Memory Consumption and these are things which you don't get in your Web Server Logs.
I want to understand what strategies / tools (preferably free) I can use to get this information and feed it to Logstash , also I need monitor both Windows and Linux Servers.
Please Help , thanks