Code:
POST https://xenforo.com/community/login/login HTTP/1.1
Host: xenforo.com
Connection: keep-alive
Content-Length: 117
Cache-Control: max-age=0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Origin: https://xenforo.com
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.114 Safari/537.36
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip,deflate,sdch
Data: login=this+is+the+username®ister=0&password=this+is+the+password&_xfToken=
POST https://www.mpgh.net/forum/login.php?do=login HTTP/1.1
Host: www.mpgh.net
Connection: keep-alive
Content-Length: 255
Cache-Control: max-age=0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Origin: https://www.mpgh.net
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.114 Safari/537.36
Content-Type: application/x-www-form-urlencoded
Referer: https://www.mpgh.net/forum/login.php?do=login
Accept-Encoding: gzip,deflate,sdch
Data: do=login&vb_login_md5password=PLACE_MD5_PASSWORD_HASH_HERE&vb_login_md5password_utf=PLACE_MD5_USERNAME_HASH&s=&vb_login_username=THIS+IS+MY+USERNAME&vb_login_password=THIS+IS+MY+PASSWORD
OR: vb_login_username=THIS+IS+MY+USERNAME&vb_login_password=THIS+IS+MY+PASSWORD&vb_login_password_hint=Password&s=&do=login&vb_login_md5password=&vb_login_md5password_utf=