julianweber
I have used SSH to copy /etc/passwd and /etc/shadow between computers before and it works quite well. If SME is using smbpasswd, then it too could be copied periodically via a cron job and you would then have something close to what you want. You would have to be careful not to add users or make changes on server1 as the cron job would overwrite them on the next update. It may not be pretty but I bet it could be made to work.
That is the very basic concept of how it could work on sme, but there is more to it than that eg the accounts db also needs to be copied and I'm sure a few others. User information and passwords are scattered in a variety of places in sme. Then there is the mechanism to cleanly update this across servers etc, it all takes considerable work and effort to turn the concept into a working solution, that will also survive upgrades and system improvements that may occur in new releases of sme.
It's a job for a clever developer.
The concept was mentioned by Charlie Brady in the thread referred to (search for it).