A Comparison of Nagios, Zenoss and Zabbix

Source – OpenSource

Feature Nagios Zenoss Zabbix
Basic features (CPU, disk, memory) YES YES YES
Auto discovery Partial YES Partial
License Free Free Free
Inventory Support No Free Free
Plug in support Free Free Free
Web Dashboard Good Excellent Excellent
Windows Monitering Partial YES YES
SNMP Trapping Partial YES YES
Syslog Monitering Partial YES YES
Trend Analysis Partial YES Partial
Google Maps View NO NO YES
Graphical Reports NO YES YES
User friendly configuration YES Partial Partial
Performance and reliability Medium High Low
Plug-in API support Partial YES YES
Security Monitering NO NO NO
Mantosh Singh
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