We're planning an IdM implementation where we have several data centers over a large
geographic location. We're following the Red Hat guide:
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/...
and are interested in having the "tight cell" replication strategy with indirect
authentication based on a one-way trust from AD.
What I do not yet understand is multiple servers in different data centers with a single
trust (realm). That is, do we need to run ipa trust-add on multiple servers? Further,
would this be on each server in the cell, or would it be only for the trust controller?