POST /ucp.php?mode=login HTTP/1.1
Host: board.kolibrios.org
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:55.0) Gecko/20100101 Firefox/55.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: nl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://board.kolibrios.org/ucp.php?mode=login
Content-Type: application/x-www-form-urlencoded
Content-Length: 131
Cookie: phpbb3_1dw2y_u=1; phpbb3_1dw2y_k=; phpbb3_1dw2y_sid=6e5f9c7881b6dd9f5452138fdeebdbd6
DNT: 1
Connection: keep-alive
Upgrade-Insecure-Requests: 1

username=test&password=1234&redirect=.%2Fucp.php%3Fmode%3Dlogin&sid=6e5f9c7881b6dd9f5452138fdeebdbd6&redirect=index.php&login=LoginHTTP/1.1 200 OK