On server swap it is needed to move data from one server to another with preserving all attributes and access times.
New server is installed from clean (just for fun and to prevent some old errors from updates or hacks if any 🙂
1. All same packages were installed as on server from which is migrated, here in after as oldserver (did it manually, however can be automated)
2. All same users as on oldserver (also manually) + copying /etc/shadow passwords into new server.
3. Samba conf file transfer with files that hold auth information. In this case smb.conf has passdb backend = tdbsam entry, so had to copy /var/lib/samba/private/passdb.tdb from oldserver
4. mount oldserver’s directory to new server.
# mount.cifs //192.168.1.1/fs /mnt/server-fs/ -o username=USER

it asks password, enter it. Then, when mounted, rsync all files from oldserver to newserver:
the command below will move all files from /mnt/server-fs to /fileserver, with deleting /fileserver/ sub-directories and files if exists.
# rsync -a –verbose –delete-during /mnt/server-fs/ /fileserver

now shutdown old server, change ip and name on new server to old servers one, reboot, and file server can be used.

Update 2024-11-25

If there is wish to sync files without removing:

# mount.cifs //10.10.10.10/fs /mnt/fs10/ -o ro,username=username
# rsync -a -p -o -g –verbose /mnt/fs10/ /fileserverdir/
or
# rsync –archive –perms –owner –group –verbose /mnt/fs10/ /fileserverdir/

after that still require to check permissions on the files wished, comare to old server and set same on new
# chmod -R 775 /fileserverdir
# chown -R user10:gropu10 /fileserverdir

controlled at OpenSSH_6.0p1, Debian-4+deb7u2
If I write commands with # – that is root permission required. Remember to use sudo instead of root console.

1. in /etc/ssh/sshd_config add
Match group groupforscponly
ChrootDirectory ~
X11Forwarding no
AllowTcpForwarding no
ForceCommand internal-sftp

note that man sshd_config allows some variables as %h (for home dir) and %u (for username) and etc.

2. add user that is belong to groupforscponly

3. inside home directory for created user make same path as the home directory. E.g. for user with home directory /home/user, you must create /home/user/home/user directory. E.g. # mkdir -p /home/user/home/user

4. change ownership for created user’s home to root, e.g. # chown root /home/user

5. give write permission for user to /home/user/home/user, e.g. # chown user /home/user/home/user && chmod u+rwx /home/user/home/user

6. restart sshd, e.g. # /etc/init.d/sshd try-restart

after this you will have user that is restricted to own directory and limited to scp only.

It’s happened, that 1:2014 version of ntfs-3g does not work correctly for me (drops input/output error when mounted, ls -alh for that mounted partition will show d????????? instead of correct permissions drwxr-xr-x for example)
The way I solved this problem is following:
check the installed version of ntfs-3g

#dpkg -s ntfs-3g

remove ntfs-3g, if the one is 1:2014

# apt-get -f remove ntfs-3g

then downloaded ntfs-3g_2012.1.15AR.5-2.1+deb7u2_amd64.deb
install older version:

# dpkg -i ./ntfs-3g_2012.1.15AR.5-2.1+deb7u2_amd64.deb

set package to not to be autoupdated:

# apt-mark hold ntfs-3g

to unhold it in future, just specify unhold on previous command.