Apache server Installation Question (no0b) question

[-Paul-]

ok i am installing apache and it asks for "network domain (eg: somenet.com)" and i do not have a domain name, i just want my friends to type in my ip, and they can see pics, how do i do this, without a domain name?

it also asks for Server Name (e.g. www.somenet.com) what do i put in here.