pubsubclient/_posts/2000-06-02-setServer.md

tag, type, name, params, returns

tag	type	name	params	returns
api	function	setServer	name description type server the address of the server IPAddress, uint8_t[] or const char[] name description type port the port to connect to int	type values PubSubClient* value description PubSubClient* the client instance, allowing the function to be chained

Sets the server details.