On Oracle Solaris hosts, the web service daemon is integrated into the SMF framework. You can change the parameters, but do not have to if the defaults below already match your needs:

svccfg -s svc:/application/virtualbox/webservice:default setprop config/host=localhost
svccfg -s svc:/application/virtualbox/webservice:default setprop config/port=18083
svccfg -s svc:/application/virtualbox/webservice:default setprop config/user=root

The table in showing the parameter names and defaults also applies for Oracle Solaris. The parameter names must be changed to lowercase and a prefix of config/ has to be added. For example: config/user or config/ssl_keyfile. If you make any change, do not forget to run the following command to put the changes into effect immediately:

svcadm refresh svc:/application/virtualbox/webservice:default

If you forget the above command then the previous settings are used when enabling the service. Check the current property settings as follows:

svcprop -p config svc:/application/virtualbox/webservice:default

When everything is configured correctly you can start the web service with the following command:

svcadm enable svc:/application/virtualbox/webservice:default

For more information about SMF, please refer to the Oracle Solaris documentation.