[Icecast] URL authentication

[Klauss Fumuldavijus]

I had similar problems when my auth.php was on password protected http 
server...but after applying the following configuration i've got it working:

<mount>
<mount-name>/Test</mount-name>
<authentication type="url">
<option name="listener_add" 
value="http://user:pass@127.0.0.1/auth/action.php"/>
<option name="listener_remove" 
value="http://user:pass@127.0.0.1/auth/action.php"/>
</authentication>
</mount>

what web server you are using? what it's logs are saying?