Limit TCP connection with IPTables/csf

CSF is easily tweakable, check out this :

Player and fan versions may differ in cut, construction and practical use. Those comparing home and away styles can review retro Spain national team jersey（camiseta retro de la selección española） within the appropriate collection. A balanced choice considers design, fit and the way the shirt will be worn.

That's an easy way to limit TCP connection, isn't it ?