The system must set maximum number of incoming connections to 1024.

This setting controls the maximum number of incoming connections that can be accepted on a TCP port limiting exposure to denial of service attacks.

Determine if the maximum number of incoming connections is set to 1024.

# ipadm show-prop -p _conn_req_max_q -co current tcp

If the value returned is smaller than "1024", this is a finding.

In environments where connection numbers are high, such as a busy web server, this value may need to be increased.

The Network Management profile is required.

Configure maximum number of incoming connections.

# pfexec ipadm set-prop -p _conn_req_max_q=1024 tcp