eltopo

If this is not an option for you, then don't use RSL selective sync folder, switch to full sync folder, or find another app to sync. Really, your problem was: RSL selective sync folder does NOT work as you expected (to be frankly honest, what you expected was wrong). If you don't use RSL's method to delete files, RSL will get confused and have to (incorrectly) guess what the real purpose of your action on a selective sync folder, you expected "delete these files on all devices", but from RSL's POV, it sees some files are missing from this selective sync folder but there are no place holders, this could be because this folder never got properly sync'ed.

You can share 1 file (without creating a sync folder) for other clients to sync, not sure if that's what you want.

You shouldn't use system's delete operation in a selective sync folder, Instead, use RSL's web ui, browse to the files/folders you want to delete in the selective sync folder, then choose "remote from all devices" or "remote from this device":

Resilio Sync runs relay servers, the clients get "relays" from https://config.resilio.com/sync.conf I don't think "random resilio users" could provide stable relay servers, no decent business companies would depend on that.

My experience: there's no real advantage for you to get when linking Android devices. 1. Resilio Sync Android app already has Selective Sync feature even if you don't link the device to desktop clients with Pro license. 2. I hate that, when I linked an Android device to my desktop clients (with Pro license), all my shares showed up in the Android device, some of them don't apply to mobile clients even remotely. So, I stopped linking Android devices. I just picked individual shares from a desktop client and shared them to my Android devices.

Maybe it's easier for you to create empty files like "this_folder_is_for_my_backup.comment", or README.txt (which contains comments) inside these folders?

Can I force Sync to do local network (LAN) syncing only and not sync via the Internet? – Sync (resilio.com)

When you replace or insert a new SD card, Android OS usually assigns a new path (/storage/XXXX-XXXX/) to it and the old path you have been using becomes obsolete and invalid. This is an OS issue, and apps really can't do anything about it.

This is sync.com, a zero-knowledge cloud service from Canada (and I am using it currently). It has nothing to do with Resilio Sync, note that it has a totally different logo. People that chose Resilio Sync because they want to keep their data on their own storage (instead of cloud storage on the internet), will unlikely want to switch to sync.com.

"Resilio Sync was awesome. " FTFY, because that's more suitable for a eulogy.

Did you read this? How to Back up data (Android only) – Sync (resilio.com)

I think you might be able to achieve this by not linking your phones to your NAS (pro license), just create shared folders (wpte, other_user) at NAS side and share different folder with different phone.

I guess the peers that have the original (unencrypted) data do all encryption/decryption works, the encrypted folder peers should never have any undecrypted data (even partially), otherwise there's a big issue.

You can't decrypt an encrypted shared folder. From the howto page: Encrypted node does not have decryption mechanism, so it cannot decrypt files. When you create a "Encrypted Folder" share on device A, you get 3 keys (R/W, Read-only, Encrypted), the folder on device A is not encrypted and has the original data. Now when you share the "Encrypted" key to device E, device E has encrypted data after fully synchronized. There's no way to decrypt this folder. Backup the 3 keys. You can always get the original data on device A. If, for some reason, device A is gone (dead system or dead storage), you'll need a new device N, install Resilio Sync, then enter the R/W key (or the Read-only key), synchronize and get the original data on device N. If your device A is gone, you don't have any other devices linked with R/W key or Read-only key, and you lost R/W key and Read-only key, consider your original data is gone forever.

It's not in Resilio Sync's options, it's Linux's system. Does your clients' NAS offer shell access that you can type commands, or can you run user bash shell script from its GUI, for example, a cron script at boot time?

He has more files to watch than his NAS system's current fs notify watcher limit, the number varies (the default value for Ubuntu is 8192). So unless he increases the limit, reinstalling Resilio Sync won't help. If his NAS is a Linux system, try increasing the notify watcher limit by modifying /proc/sys/fs/inotify/max_user_watches, or fs.inotify.max_user_watches in /etc/sysctl.conf. See: Ubuntu Increase Inotify Watcher (File Watch Limit) - DEV Community

You can apply license with --license command line option. Try reading the output of ./rslsync --help

Create a link (softlink or hardlink) in /var/www/nextcloud/data pointing to RSL folder, maybe?

The line from netstat clearly shows your rslsync is listening to 127.0.0.1:8888, which is only accessible from localhost. For listening to all interfaces, It should be like: tcp 0 0 0.0.0.0:8888 0.0.0.0:* LISTEN - There might be some problems with your config file, try testing rslsync with --webui.listen option as ./rslsync --webui.listen 0.0.0.0:8888 see: Guide to Linux, and Sync peculiarities – Sync (resilio.com)

Yes it's enough. Next you should use netstat to verify the rslsync is really listening to port 8888 on all interfaces: netstat -anp if it indeed listens on all interfaces, then I guess it's firewall, try totally disable firewall (temporally) and test.

Your WebUI is configured to listen to localhost only, which is only accessible from the same PC. Either you need to re-configure it to listen on other interface (for example, 0.0.0.0:8888, which means port 8888 on all interfaces), or use some other applications that can do port forward for you. read Configuring WebUI – Sync (resilio.com)

You can use killall with process name I use killall -15 -u myuser rslsync (15: SIGTERM)

Did you allow the dns query to that domain name? or you blocked it?

A paid feature, called "Sharing a folder locally", is available since 2.7.0, see: Sharing a folder locally – Sync (resilio.com)

I think the default behavior should work well for you, as long as at least one of the other devices have set the folder to "Sync All" instead of "Selective Sync". If all devices (everyone of them) have this folder set to "Selective Sync", then nobody will take the new files, i.e., no sync. If in doubt, you can create cases to test.