I have a server with 15 users configured for synchronization. Each user only has the server configured on remote devices. To ensure the clients continue synchronizing even if the server goes down, do I need to add all of them to each other?
Syncthing is fundamentally peer to peer in design and architecture.
So let me rephrase what you wrote — tell me if I got it right: You have one Syncthing Device connected to 15 other Devices.
If you have all of the Devices in a mesh configuration (all connected to all others) the Devices will sync changes while one or more are down, yes.
While I do not use this feature, you may find using an Introducer will speed up your configuration, see Introducer Configuration — Syncthing documentation .
I appreciate your time and help.
I have computers A, B, and C. Computer A has B and C configured as remote devices, computer B only has A configured as a remote device, and computer C only has computer A configured as a remote device. When computer A is turned off, will computers B and C be able to synchronize? If they cannot, should I add C to B and B to C in connected devices?
In my case, there are clients who come and go from the company. I need to have centralized copies of the files to maintain availability and synchronization in case of power or internet outages. I configured another machine to back up the files in another location. If this is correct, could I add the server and server_backup to the devices connected to the clients so that they continue synchronizing?
This way, I wouldn’t need to reconfigure all the computers when a user leaves the company.
Files can sync as long as Devices are connected to each other in Syncthing and also have shared Folders.
In your example if A is offline, B and C won’t sync unless they are configured to do so. So yes, you should connect them if that’s what you want to happen.