bmxquickscope

Just i made a server how can my friends join i can join but they cant what the fuck?

? What

I made a server i can access and stuff but i give my friends the ip and it says its off for them?

Can someone give me a full tut of how to make a Tekkit server please :(

I gave him that

I portfowarded right im pretty sure and whats my external ip? Im sorry this is my first server :(

I made a server i can go on it but when i give them ip it says it not up.

I made one but my friends cant join? Did i setup server wrong? D: PLease Help