smb_nfs

VirtualBox | Server | Client | NFS | Samba | DHCP

Quick guide

Set up two virtual computers - SimpleArbiterDhcp and FileServer.

Make sure that the directory /srv/nfs/ERLbbBrT on FileServer is accessible over NFS and over SMB under the sharename urania-03. Set the SMB server name to zarptica-32.

SimpleArbiterDhcp should have write access to /srv/nfs/ERLbbBrT over NFS.

Instructions

• Download these VM images:

  • student-fileserver.vdi
  • simpleArbiterDhcpGW.vdi
  
  

• VirtualBox Settings:

  • Enable PAE/NX for both VMs: Settings⇒System⇒Processor
  • For FileServer
    • Adapter 1 - NAT
    • Adapter 2 - Internal Network
  • For SimpleArbiterDhcp
    • Adapter 1 - Internal Network



• Server FileServer

  1. Set up a DHCP server
     1. apt-get update
     2. apt-get install isc-dhcp-server
     3. The server will not start (error Starting ISC DHCP server: dhcpdcheck syslog for diagnostics. ... failed!) , configure 3 files:
        • In /etc/network/interfaces set static IP for eth1 on which the DHCP server will be running, e.g.:

          auto eth1
          iface eth1 inet static
          address 192.168.1.10
          netmask 255.255.255.0
          network 192.168.1.0
          broadcast 192.168.1.255
          

        • In /etc/default/isc-dhcp-server:

          INTERFACES="eth1"

        • In /etc/dhcp/dhcpd.conf configure the subnet properties, e.g.:

          authoritative;
          default-lease-time 600;
          max-lease-time 7200;
          
          subnet 192.168.1.0 netmask 255.255.255.0 {
          range 192.168.1.100 192.168.1.200;
          option routers 192.168.1.10;
          option domain-name-servers 193.2.1.66, 8.8.4.4;
          
          host SimpleArbiter {
          hardware ethernet 08:00:27:A2:FB:B4;
          fixed-address 192.168.1.180;
          }
          }
          

  2. Set up a NFS server
     1. apt-get install nfs-kernel-server
     2. Determine the rules in /etc/exports, e.g.:

        #privileges for SimpleArbiterDhcp
        /srv/nfs/ERLbbBrT 192.168.1.180(rw,sync,insecure)
        /srv/nfs/ERLbbBrT 192.168.1.0/24(ro,sync,insecure)
        

     3. Change the owner of the directory and files in it: chown student /srv/nfs/ERLbbBrT and similarly for all the files in shared directory. The owner should not be root.
     4. Run command exportfs -rv to export file systems

        After that run services nfs-kernel-server restart

     
     
  3. Set up SMB server
     1. apt-get install samba
     2. Create directory urania-03 and set owner and privileges:

        mkdir /home/student/urania-03
        chown -R root:users /home/urania-03/
        chmod -R ug+rwx,o+rx+w /home/urania-03
        

     3. Edit configurations in /etc/samba/smb.conf, add at the bottom of document, e.g.:

        [global]
        workgroup = users
        server string = zarptica-32
        dns proxy = no
        log file = /var/log/samba/log.%m
        max log size = 1000
        syslog = 0
        panic action = /usr/share/samba/panic-action %d
        security = user
        encrypt passwords = yes
        passdb backend = tdbsam
        obey pam restrictions = yes
        unix password sync = yes
        passwd program = /usr/bin/passwd %u
        passwd chat = *Enter\snew\s*\spassword:* %n\n
        *Retype\snew\s*\spassword:* %n\n
        *password\supdated\ssuccessfully* .
        pam password change = yes
        map to guest = bad user
        usershare allow guests = yes
        
        [homes]
        comment = Home Directories
        browseable = no
        read only = yes
        create mask = 0700
        directory mask = 0700
        valid users = %S
        
        [printers]
        comment = ALl Printers
        browseable = no
        path = /var/spool/samba
        printable = yes
        guest ok = no
        read only = yes
        create mask = 0700
        
        [print$]
        comment = Printer Drivers
        path = /var/lib/samba/printers
        browseable = yes
        read only = yes
        guest ok = no
        
        [urania-03]
        comment = All Users
        path = /home/urania-03
        users = @users
        force group = users create mask = 0660
        directory mask = 0771
        writable = yes
        

     4. Restart Samba: service samba restart

     5. Test the syntax of smb.conf file with command testparam

     6. Add users:

        In order to define passwords for Samba users they have to exist on a local system, too.

        Use command useradd USERNAME --shell /bin/false to create user with a disabled account and without home directory, e.g:

        useradd tester --shell /bin/false

        Define Samba password for your user:

        smbpasswd -a tester

        Add the user to your group.

        Open /etc/group file and add group and users: users:x:1002:tester

     7. Restart Samba.



• Client SimpleArbiterDhcp

  • Create directories for your mounts, e.g.:

    mkdir mnt
    mkdir mnt/smb
    mkdir mnt/nfs
    

  • NFS: Run command

    sudo mount 192.168.1.10:/srv/nfs/ERLbbBrT /mnt/nfs

  • SMB: Run command

    sudo mount -t cifs //192.168.1.10/urania-03 /mnt/smb -o username=tester,password=test,workgroup=users
    

  You should be able to access shared folders now.