Forum OpenACS Q&A: How do I change the hostname in the notification messege?

I've moved the server to its production location and have it up and running with a new hostname, but the notifications sent to new users still have the old hostname in them, thus

Message: Please follow the following link to reset your password:
http://cantabile.zedat.fu-berlin.de/user/password-update?password%5fold=klaus%21&user%5fid=8842

The server is not longer "cantabile" but "lrn.jfk.fu-berlin.de"  I'll very much appreciate any advice on how to change this address.

Thanks!

Bruce

On the acs-admin pages (Site-Wide Admin pages) under parameters.
Dirk: Thanks for the reply.  I must be looking in the wrong place: below are the choices from where I thought you meant by acs-admi (my: http://160.45.16.100:8000/admin/site-map/?expand=274&expand=1013&root_id=274), and none of the parameters available from here look like a hostname, at least to me. Am I in the wrong place?

Main Site:/acs-admin/
URL Instance Name Package Type
    acs-admin/ Site-Wide Administration Site-Wide Administration [ new sub folder | unmount | set permissions | rename ]
Unmounted Applications
Configurable Services
ACS Content Repository [set parameters]
ACS Events [set parameters]
ACS Kernel [set parameters]
ACS Templating [set parameters]
Bulk Mail Portlet [set parameters]
Calendar Portlet [set parameters]
dotLRN Calendar Applet [set parameters]
dotLRN File Storage Applet [set parameters]
dotLRN Forums Applet [set parameters]
dotLRN Portlet [set parameters]
FAQ Portlet [set parameters]
File Storage Portlet [set parameters]
Forums Portlet [set parameters]
Main Site [set parameters]
News Portlet [set parameters]
OpenACS Localization Utils [set parameters]
OpenFTS Driver [set parameters]
Static (HTML) Data [set parameters]

It is the parameter SystemURL in the section system-information under "ACS Kernel".
Got it!  Thanks a million!  Bruce