To have the less work to do, we simply add each host to the /etc/hosts and each workers and on the master. But this model have reach is limit. When you want to push data from the external host of the CUL, your /etc/hosts is not correctly completed. So you can't resolve the master (mainly the OPV_Master).
This is very problematic and you have to manually add an entry to your /etc/hosts file. Maybe we should add a DNS to the CUL, is not perfect and don't resolve the problem, but we can imagine that the external host must use a proxy (host in the CUL) to communicate with the master. But the OPV_DirectoryManagerClient must use the HTTP backend to push data.
To have the less work to do, we simply add each host to the /etc/hosts and each workers and on the master. But this model have reach is limit. When you want to push data from the external host of the CUL, your /etc/hosts is not correctly completed. So you can't resolve the master (mainly the OPV_Master).
This is very problematic and you have to manually add an entry to your /etc/hosts file. Maybe we should add a DNS to the CUL, is not perfect and don't resolve the problem, but we can imagine that the external host must use a proxy (host in the CUL) to communicate with the master. But the OPV_DirectoryManagerClient must use the HTTP backend to push data.