Set envif Host Magento Multiple Stores

Question

I am trying to get a magento installation to run multiple websites I have completed most of the steps including a parked domain. However I am unsure as to how to answer the statement below:

Easiest amongst these is .htaccess solution which requires you to define the following lines:

SetEnvIf Host .*myhost.* MAGE_RUN_CODE="base";
SetEnvIf Host .*myhost.* MAGE_RUN_TYPE="website";

Simply ensure that .myhost. is a regex expression matching the domain for which you want to set environmental variables for.

For example do my website is www.domain.com and also www.domain1.com, magento is installed on domain.com so for the host do I put .domain.com. and leave the run code and type and base and website