I just looked back at your original posted question and it seems to be about how to enable debugging on a synology NAS (something which I have no insight about). On the synology NAS, btsync is run as the 'btsync' user, whereas on my laptop, btsync is run using my username. So, I'm not sure how knowing the permissions for files on my linux laptop will help. However, I went and looked and as I suspected, there's nothing special about the permissions. All files in $HOME as well as $HOME/.sync have permissions -rw-r--r-- and all directories and sub-directories have permissions drwxr-xr-x. And, all files and directories have my username as the owner and as well as the group (as is standard for a mint/ubuntu install). I also logged in to my synology NAS and in my $HOME directory, the sync'd directory has an owner:group of btsync:users. The permissions are drwxrwxr-x. The files and subdirectories in the sync'd directory are all -rw-r--r-- and drwxr-xr-x, respectively. Lastly, it appears that all I had to do to turn off debugging was restart btsync. D