Nice job got it working

ok, Will other people be able to connect to my server if i send them a modified version of the client?
Also ive tried to create an account page with zend server but only i can view it, do you know if i need to have a static IP address to make it work?
(Followed this guide

)
DHCP=yes - so thats bad right?
Will other people be able to connect to my server if i send them a modified version of the client?