Alfred, I am running RH 8.0... forgot to mention that.
David, I changed my config file, but it still doesn't work properly:
<VirtualHost *>
ServerName www.myserver.de
proxypass / http://www.myserver.de:8000/
proxypassreverse / http://www.myserver.de:8000/
</VirtualHost>
<VirtualHost *>
ServerName sd1.myserver.de
proxypass / http://sd1.myserver.de:8000/
proxypassreverse / http://sd1.myserver.de:8000/
</VirtualHost>
<VirtualHost *>
ServerName sd2.arasis.de
proxypass / http://sd2.myserver.de:8000/
proxypassreverse / http://sd2.myserver.de:8000/
</VirtualHost>
Now ad_host always shows me the value of proxypass of the *top* VirtualHost tag... In this example www.myserver.de