These options should go in an [example] section of the /etc/realmd.conf file. Only specify the settings you wish to override.
[example]
/etc/realmd.conf
Whether the example realm provider, which creates mock realms for example.com, example.org, example.net.
example.com
example.org
example.net
[example] enabled = no # enabled = yes
The default setting for this is no
no