Hi Denis,

You should allow port 80 and 443 for web applications

Please refer to OutSystems network requirements: https://success.outsystems.com/documentation/11/setup_outsystems_infrastructure_and_platform/setting_up_outsystems/outsystems_network_requirements/

@Denis Orlandi de Souza I am not quite sure about your question. Typically, there are two types of ports: local and remote. Local ports, which are determined by the operating system and not by Service Center, typically range from 49152 to 65535. On the server side, the ports used are usually 80 or 443, as @Ahmed Hani  mentioned. You can view this information by using the netstat command in the terminal. Are you trying to collect local port information on the server side?