Network connectivity

To validate communications, test your connectivity to the Cloud APM data center. To ensure that your firewall rules allow return traffic from three specific IP addresses and port 443, find the three data center IP addresses that you need to verify connection as described in Validating connectivity to the data center. Check that your agents can connect to these three IP addresses by using the openssl command. For more information about using the openssl command, see Configuring agents to communicate through a forward proxy. If your agents cannot connect, contact your local IT team. They can adjust your firewall rules, enable port 443, and enable TLS 1.2 traffic from your servers, or configure a proxy server to connect to the Cloud APM server.

If your firewall rules do not allow transparent outbound HTTPS connections to external hosts, you can configure your agents to send traffic to a forward proxy. For more information, see Configuring agents to communicate through a forward proxy.