Performance Charts must limit the number of allowed connections.

Limiting the number of established connections to Performance Charts is a basic denial-of-service protection. Servers where the limit is too high or unlimited could run out of system resources and negatively affect system availability.

At the command prompt, run the following command:

# xmllint --xpath '/Server/Service/Connector/@acceptCount' /usr/lib/vmware-perfcharts/tc-instance/conf/server.xml

Expected result:

acceptCount="300"

If the output does not match the expected result, this is a finding.

Navigate to and open:

/usr/lib/vmware-perfcharts/tc-instance/conf/server.xml

Configure the <Connector> node with the value:

acceptCount="300"

Restart the service with the following command:

# vmon-cli --restart perfcharts