Post requests in ruby

hi, im writing a program to send post requests to a server, and ive
writen a php script to test it. when a request gets sent, its saves all
the post parameters to a file. like when you use a log in form in html
it sends bit of data over post, i want to do that with ruby. also, does
anyone have problems with bruteforce hacking? its not to do anything
malicious, im just challenging the I.T guy at my highschool