We have a wordpress multi site installation with 1 parent and 2 child sites, Domain Mapping plugin installed and working terrifically. We would like to design a user experience where the following workflow occurs:
1. The Super Admin creates a new Wordpress user manually and delegates access to a child and parent site
2. The user logs into a membership page on a child site
3. The user clicks links on the child site membership page that lead to membership pages residing on the parent site
4. The user is NOT prompted to log in the parent site and can seamlessly traverse from child to parent site without being prompted a second time to login
Please let us know the combination of multi site settings to accomplish this user experience. We are considering enabling 'Cross-domain autologin' but want to know if there are any risks, precautions, or side effects when changing the setting.
-Is there a wait time for the setting to take effect?
-Do all usersadministrators need to be logged off when changing the setting?
-Is there a change made to local DNS cache when the setting is changed?
FYI, here are our settings from Network Admin > Settings > Domain Mapping:
Administration mapping: mapped domain
Login Mapping: domain entered by the user
Cross-domain autologin: No
Verify domain's DNS settings: Yes