Hi, I have a wired issue with shadow_copy and I can't sort it out. I hope you can give me an hand on this. I am making shadow copies with 'rsync', I am pretty sure I am doing it well because in a test machine it all works. Unfortunately when I am trying to make it work in our production server I have issues and I can't see the shadow copies from Windows File Explorer. My configuration. I use Debian 10 stable. All software comes from packages. My DC is Samba (dc1.windom.borghi.lan), my NAS is again Samba (nas.windom.borghi.lan). . I share with Samba : /mnt/sambaShared . I would like to take shadow copies of the dir: /mnt/sambaShared/sambaDisk/DiscoS/Borghi . I would like to keep the shadow copies in : /mnt/sambaShared/sambaDisk/DiscoS/snapshots . I choose to let the snapshots directory visible to Domain Users because it is not fully clear to me if that is required. . These are a few shadow copies I see listing: /mnt/sambaShared/sambaDisk/DiscoS/snapshots latest ROME-2021.01.02-12.03.35 ROME-2021.01.02-12.16.11 . I can see and browse these directories from Windows File Explorer, they seem all fine. PS. (*) Beware, i found all sort if issues If snapshot names start with "@GMT", as per default. When I discovered the problem was the "@" I also fixed the time to be my local time. This issues appeard only in the production machine. In the test machine there was no issue but snapshots files were not shared to users. . Between a snapshot and the other I am sure I made modification to a file "test14.txt" but they are not reflected in the snapshot. I see no "Previous versions" of this file. . for completeness I report the snapshoting script in action: ------------ + BASE_DIR=/mnt/sambaShared/sambaDisk/DiscoS + SNAP_DIR=/mnt/sambaShared/sambaDisk/DiscoS/snapshots + SNAP_TARGET=/mnt/sambaShared/sambaDisk/DiscoS/Borghi + LATEST_SNAPSHOT=/mnt/sambaShared/sambaDisk/DiscoS/snapshots/latest + whoami + test root != root + [ ! -d /mnt/sambaShared/sambaDisk/DiscoS/snapshots ] + [ ! -d /mnt/sambaShared/sambaDisk/DiscoS/snapshots/latest ] + rsync -av /mnt/sambaShared/sambaDisk/DiscoS/Borghi/ /mnt/sambaShared/sambaDisk/DiscoS/snapshots/latest/ sending incremental file list Utenti/Nicola/test14.txt sent 85,800,421 bytes? received 228,856 bytes? 1,220,273.43 bytes/sec total size is 2,879,559,548,669? speedup is 33,471.86 + date +ROME-%Y.%m.%d-%H.%M.%S + FNAME=ROME-2021.01.02-12.16.11 + cp -a -l /mnt/sambaShared/sambaDisk/DiscoS/snapshots/latest /mnt/sambaShared/sambaDisk/DiscoS/snapshots/ROME-2021.01.02-12.16.11 + setfacl -m g:WINDOM\domain users:rX /mnt/sambaShared/sambaDisk/DiscoS/snapshots/ROME-2021.01.02-12.16.11 ------------------------------------------------------------------------ My Samba configuration in 'nas' is below. Still in comments you can see some previous attempts I made, unsuccessfully. Thank you in advance for whatever help/suggestion you can give me. bye Nicola ------------- /etc/samba/smb.conf ------------------------------- [global] ?? workgroup = WINDOM ?? security = ADS ?? realm = WINDOM.BORGHI.LAN ?? # per le windows ACL ?? winbind refresh tickets = Yes ?? vfs objects = acl_xattr ?? map acl inherit = Yes ?? store dos attributes = Yes ?? dedicated keytab file = /etc/krb5.keytab ?? kerberos method = secrets and keytab ?? # rimuovere dopo il testing ?? winbind enum users = yes ?? winbind enum groups = yes ?? # disable printing ?? load printers = no ?? printing = bsd ?? printcap name = /dev/null ?? disable spoolss = yes ?? # logs ?? # log file = /var/log/samba/%m.log ?? # log level = 1 ?? # log file = /var/log/samba/samba.log ?? log file = /var/log/samba/%U.log ?? # log level = 1 smb:2 smb2:3 ?? log level = 2 smb:2 smb2:2 vfs:9 ?? # max file size 10 mega ?? max log size = 10000 ?? # ---- ID mapping backend rid ------- ?? # Default ID mapping configuration for local BUILTIN accounts ?? # and groups on a domain member. The default (*) domain: ?? # - must not overlap with any domain ID mapping configuration! ?? # - must use a read-write-enabled back end, such as tdb. ?? idmap config * : backend = tdb ?? idmap config * : range = 3000-7999 ?? # - You must set a DOMAIN backend configuration ?? # idmap config for the SAMDOM domain ?? idmap config WINDOM : backend = rid ?? idmap config WINDOM : range = 10000-999999 ?? # Template settings for login shell and home directory ?? template shell = /bin/bash ?? template homedir = /home/WINDOM-%U ?? # mappare "Administrator" a "root" ?? username map = /usr/local/samba/etc/user.map # directory che funge da disco in condivisione [sambaDisk] ?????? path = /mnt/sambaShared ?????? read only = no ?????? # ---- carica moduli che servono ?????? vfs objects = full_audit shadow_copy2 ?????? # vfs objects = shadow_copy2 ?????? # ------------------------------- ?????? # --- per l'audit --------------- ?????? # opendir: troppi output, viene lette in automatico ?????? # questi non capisco cosa fanno: read write pread pwrite ?????? full_audit:prefix = %u|%I ?????? full_audit:success = open ?????? # full_audit:failure = all ?????? full_audit:facility = LOCAL5 ?????? # -------------------------------- ?????? # ---- per le shadow copies ------ ?????? # vfs objects = shadow_copy2 ?????? shadow:mountpoint = /mnt/sambaShared ?????? shadow:snapdir = /mnt/sambaShared/sambaDisk/DiscoS/snapshots ?????? shadow:snapsharepath = ../Borghi ?????? # shadow:snapdir = sambaDisk/DiscoS/snapshots ?????? # shadow:basedir = sambaDisk/DiscoS/Borghi ?????? # shadow:snapdir = /mnt/sambaShared/sambaDisk/DiscoS/snapshots ?????? # shadow:basedir = /mnt/sambaShared/sambaDisk/DiscoS/Borghi ?????? shadow:sort = desc ?????? shadow:localtime = yes ?????? shadow:format = 'ROME-%Y.%m.%d-%H.%M.%S' --------------------------------------------------------------