File: //usr/share/webmin/virtual-server/help/pre_post_vars.html
The specific Virtualmin action that was performed can be found in the
VIRTUALSERVER_ACTION variable, such as : <p>
<dl>
<dt><b>CREATE_DOMAIN</b>
<dd>A new virtual server is being created.
<dt><b>DELETE_DOMAIN</b>
<dd>An existing virtual server is being removed.
<dt><b>DISABLE_DOMAIN</b>
<dd>A virtual server is being temporarily disabled.
<dt><b>ENABLE_DOMAIN</b>
<dd>A virtual server is being re-enabled.
<dt><b>MODIFY_DOMAIN</b>
<dd>A virtual server is being updated, such as when features are added or
removed, or ownership is changed.
<dt><b>CLONE_DOMAIN</b>
<dd>A virtual server is being created by copying an existing server.
</dl>