Depending on the options you select during the Red Hat Enterprise Linux Server installation, the package mod_dnssd might get installed. There is a compatibility issue between Experience Portal and mod_dnssd. Therefore, do not install mod_dnssd.

If the package mod_dnssd is installed when Experience Portal is installed, the Experience Portal installer automatically disables the incompatible entry in the mod_dnssd configuration file and displays the following warning message:

Possible Error during operation: Install/Configure Apache for VPMS
- Start error description -
Notice: Incompatible DNSSDEnable entry found in
/etc/httpd/conf.d/mod_dnssd.conf. Automatically disabling this entry. Please
see Experience Portal documentation for more details. This notice is not an error.

You can ignore the warning message.