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Zenoss Core 3.x Network and System Monitoring by Michael Badger

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Opening monitoring-specific ports

Both the Zenoss Core server and the monitored devices have port requirements. The Zenoss Core server needs to allow access to the following ports:

  • TCP port 8080 for HTTP access
  • TCP port 514 for syslog access, if Zenoss Core is acting as a syslog server
  • TCP port 22 for remote SSH access
  • UDP port 162 to process SNMP traps

To facilitate monitoring, the systems on the network need to allow access to the following ports:

  • UDP 161 for SNMP requests
  • TCP port 22 for remote collector plugins via SSH
  • TCP port 23 for remote collector plugins via Telnet

This is a common list of ports, but network and monitoring needs are unique from one site to the next. For example, if you do not plan to monitor any devices with the Zenoss Plugins ...

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