This is actually a suite of packages, each covering a different major service. Unfortunately, this is not as universal as dpkg-reconfigure, but it does handle more complex configurations. The following services are covered as of Debian 7:
- Bind (DNS)
- OpenVPN (both client and server)
- ProFTPD (FTP)
- RSYNC
- Samba (Windows Shares)
It is a graphical tool, based on GTK (GIMP Tool Kit). It was developed to provide some administrator functions under the GNOME desktop environment. It will handle fairly complex configurations.