Instead of forwarding the graphs to a dyndns account you could just push them frequently using ftp to a web space.
Actually, I'm not forwarding the graphs to a dyndns account, but giving direct access to my Cacti server
, through a guest account.
Anyway, I like your idea: much simpler, safer and robust.
On my side, I'm ready to send the graphs somewhere.
As for the web space, do you have already one to which I should ftp the graphs? (I'm assuming that those graphs will be made public in your site or anywhere else, right?) In this case, I would need to know username/password.