I'm new to ELK Stack and I want to know that how can I get logs of multiple systems of company on my system. Do I need to install filebeat or Winlogbeat on each system or is there any other way to do it? I'm unable to find the ways online. Please help.
The beats that you use depend on the kind of logs that you want to ingest. Winlogbeat is used to read events from Windows Event Logs, so it's used in Windows systems if your application uses this facility for logging.
Filebeat reads logs from log files or via the network using the syslog protocol.
You're going to need to install both in every system and point them to the log files / event log that you want to process.
For the Windows logs I would suggest to make use of Windows Event Forwarding (WEF) for centralized log collection. No need to install Winlogbeat on every Windows endpoint. In the Winlogbeat configuration file you can then specify:
winlogbeat.event_logs: - name: ForwardedEvents ignore_older: 72h
NSA Whitepaper (section 2.3): https://apps.nsa.gov/iaarchive/library/reports/spotting-the-adversary-with-windows-event-log-monitoring.cfm
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