The requirements for client-to-server and client-to-client topologies are not
well-documented in the production install requirements docs. Document that
clients make connections to servers (and not the other way around), and that
clients don't need to communicate with each other (with some exceptions).
Fixes: #17631
The existing docs on required capabilities are a little sparse and have been the
subject of a lots of questions. Expand on this information and provide a pointer
to the ongoing design discussion around rootless Nomad.
This PR adds a sentence about configuring your firewall to allow required Nomad ports. This is being added to help search discoverability.
This closes issue #11076
