Fedora 26
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Create Restricted Shared Folder2017/07/23

Install Samba to build a File Server.
For example, Create a shared Folder which requires user authentication.
[1] Install and Configure Samba.
[root@smb ~]#
dnf -y install samba samba-client
[root@smb ~]#
groupadd security

[root@smb ~]#
mkdir /home/security

[root@smb ~]#
chgrp security /home/security

[root@smb ~]#
chmod 770 /home/security

[root@smb ~]#
vi /etc/samba/smb.conf
# line 7: add

unix charset = UTF-8
# line 9: change ( Windows default )

workgroup =
# line 11: IP addresses you allow to access

hosts allow = 127. 10.0.0.
# add to the end

# any share name you like

    path = /home/security
    writable = yes
    create mode = 0770
    directory mode = 0770
# guest not allowed

    guest ok = no
# allow only security group

    valid users = @security
[root@smb ~]#
systemctl start smb nmb

[root@smb ~]#
systemctl enable smb nmb

# add a user in Samba

[root@smb ~]#
useradd fedora

[root@smb ~]#
smbpasswd -a fedora

New SMB password:    
# set password

Retype new SMB password:
Added user fedora.
[root@smb ~]#
usermod -G security fedora

[2] If Firewalld is running, allow Samba service.
[root@smb ~]#
firewall-cmd --add-service=samba --permanent

[root@smb ~]#
firewall-cmd --reload

[3] If SELinux is enabled, change SELinux Context.
[root@smb ~]#
setsebool -P samba_enable_home_dirs on

[root@smb ~]#
restorecon -R /home/security

[4] It's the way to access to the shared folder. This example is on Windows 10.
Select [Computer] - [network] - [Map Network Drive].
[5] Specify the shared folder's place in Folder section and Click the [Finish] button to enter.
[6] Authentication is required, Input the username and password you added in Samba.
[7] Just accessed.
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