How to configure or to override Liferay portal properties with portal.properties?
How to configure or to override Liferay portal properties with portal.properties?
It's also important to notice that, in Liferay 7.x, if you don't set the property setup.wizard.enabled to false, a wizard setup screen will appear when you first access your portal and it will create a portal-wizard-setup.properties, wich takes precedence with portal-ext.properties.