CREATE TABLE `port_forwards` (
	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
	`label` text NOT NULL,
	`external_port` integer NOT NULL,
	`protocol` text DEFAULT 'tcp' NOT NULL,
	`server_id` integer,
	`destination` text,
	`internal_port` integer,
	`source` text,
	`comment` text,
	`created_at` text DEFAULT (current_timestamp) NOT NULL,
	`updated_at` text DEFAULT (current_timestamp) NOT NULL,
	FOREIGN KEY (`server_id`) REFERENCES `servers`(`id`) ON UPDATE no action ON DELETE set null
);