What ports need to be open in the firewall to monitor the target servers?

If using the agent-less approach to monitor servers, the firewall needs to allow external access to the servers on the ports for the servers/services being monitored. Here are some of the typical ports needed for monitoring various services:

  • System resources: port 22 (SSH)
  • MySQL: port 3306
  • PostgreSQL: port 5432
  • SNMP: port 161
  • JBoss: ports 1099, 1098, 4444
  • Tomcat/Resin: port 9004

If using the agent to monitor servers, no inbound ports need to be opened, but ports 80/443 (HTTP/HTTPS) need to be opened outbound from the customer network to CloudTest.