Configuration 

Qradar-Configuration-

https://www-01.ibm.com/support/docview.wss?uid=swg27048741

Enable Firewall on Unix/Linux system

https://www.tecmint.com/how-to-install-and-configure-ufw-firewall/

https://www.computernetworkingnotes.com/rhce-study-guide/how-to-configure-syslog-server-in-linux.html