I need to integrate Logstash with QRadar. While I am familiar with the configuration process on the QRadar end, I am new to setting up the integration on the Logstash side using the Syslog protocol. I am seeking detailed, step-by-step guidance on the initial configuration of Logstash to work with QRadar. My current Logstash setup includes a Beats input stanza and is gathering data in pods. Could someone provide professional assistance with this initial configuration?