share files/folders between users for www?

[TestUser]

Hey all i have a question...
for simple understanding lets say i have 3 domains
a.com
b.com
c.com
on doman a i have a subdomain
auth.a.com
is there any way i could get acces to domains b.com and c.com to this aut.a.com ?
so i have created
auth.b.com and i would like to have 100% content from auth.a.com without copyinig any files or anything...
but i just dont know how..
ideas?

 

[zEitEr]

Hello,

Use symlinks between public_html from different domains, if domains are owned by the same user in DirectAdmin.