Originally Posted by giftsnake
looks to me that i just have write the correct form to submit the data to the loginscript, right?
No. Everything in ispconfig is loaded by ajax, so after the login, the ispconfig ajax scripts replace just some parts on the same html page that displays the login script and does not load the whole page again. So if your page is not the ispconfig outer html page, then nothing gets replaced and you dont get the ispconfig interface as the result.
Also be aware that browsers block all cross domain post requests, so if your login form does not run on the same port and under the same domain then the ispconfig interfcae, all modern browsers will block any post data.