[TYPO3-english] Backend : access via domain = redirection on ip address

[Gregory Loichot]

Hello,

I noticed something "funny" when I logged on my backend. If I go to 
http://mydomain.com/typo3, the login form appears. Then I enter username 
and password, clic "login" and my backend appears, but the url in my 
address bar is : http://192.168.1.8/typo3/backend.php (where 192.168.1.8 
is server's ip). I'd like url stays 
http://mydomain.com/typo3/backend.php, for some external reasons.

Does someone know where can I configure that ?
Thank, and good week.