SquirrelGuy-5 a DOS attack would only hinder the site from working, it would not grant you any access to any of the files or data, a DOS (Denial Of Service) attack is most commonly used to take down sites that the actor was either payed to pen test or under malicious intent of which one is illegal and may even break flarums terms which may get your public IP banned from the program of which VPN lol but it's still possible that they may press charges since Adam isn't the one hosting the site so be careful, i assume your probably going to use a (SYN/ACK) flood method of which i don't get why you would since it's only targeting flarum and not Adam