How do you let others join your flyff private server?

its a basic flyff private server and i have all the files and im the admin/gm/w.e else|||A private server? Sorry i've never heard of that, if you could tell me what i private server was then I'll try help out, but for a guess, im guessing its a server with just you and invited people? But anyway i guess you need to make sure your both local so you can use a local network connection, thats all im got, very sorry but I hope i helped.