On old blog article I already mentioned several monitoring/security tools
I am highlighting Kiwi Syslog Server that permit to:
- Centrally manage syslog messages, snmp traps and windows Event logs.
- Store and archive logs, receive promptly alerts based on critical events.
- Respornd to syslog messages
- Email alerting
- Diagnose network issues
Freeware - SolarWinds All Free Network/System/Security/DB/clients monitoring tools
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About configuring Kiwi Syslog on Cisco devices, here it is a small guide/tutorial
Kiwi Syslog Server Getting Started Guide
About configuring Syslog, on Cisco ASA, you can review this guide:
ASA Syslog Configuration Example
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At the same time I would like to mention that PRTG (free up to 100 sensors) has possibility to use sensor acting as syslog server
https://www.solarwinds.com/kiwi-syslog-server/use-cases/network-troubleshooting
Here they are old PRTG blog articles
Server - PRTG Network Monitor Tool
Monitoring - PRTG monitors freeware version until 100 sensors
