Samba Restrict File Sharing To Particular Users or Network Addresses

hosts allow: Samba Configuration

Open your smb.conf file and add the following line to [share]

[share]

  hosts allow = 192.168.2. 127.0.0.1

valid users: Samba Configuration

Open your smb.conf file and add the following line to [share]

[share]

  valid users = user1 user2 @group1 @group2

read only & write only: Samba Configuration

You can also set read and write access to set of users with the read list and write list directives.

[share]

     read only = yes

     write list = user1 user2 @group1 @group2

Examples

Make [sales] share read only but allow user tom and jerry to write it:

[sales]

     comment = All Printers

     path = /nas/fs/sales

     read only = yes

     write list = tom jerry

You can also configure iptables to allow access to the Samba server