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List all share on the PC name helene-pc, with the user helene:

smbclient -L \\\\helene-pc -U helene

Domain=[HELENE-PC] OS=[Windows 7 Ultimate 7601 Service Pack 1] Server=[Windows 7 Ultimate 6.1]

 Sharename       Type      Comment
 ---------       ----      -------
 ADMIN$          Disk      Administration à distance
 C$              Disk      Partage par défaut
 Documents       Disk     
 IPC$            IPC       IPC distant
 Users           Disk

Now connect directly on the share Documents:

smbclient \\\\helene-pc\\Documents -U helene
smb: \>

You can use the following commands:

smb: \> ?
?              allinfo        altname        archive        blocksize     
cancel         case_sensitive cd             chmod          chown         
close          del            dir            du             echo          
exit           get            getfacl        hardlink       help          
history        iosize         lcd            link           lock          
lowercase      ls             l              mask           md            
mget           mkdir          more           mput           newer         
open           posix          posix_encrypt  posix_open     posix_mkdir   
posix_rmdir    posix_unlink   print          prompt         put           
pwd            q              queue          quit           readlink      
rd             recurse        reget          rename         reput         
rm             rmdir          showacls       setmode        stat          
symlink        tar            tarmode        translate      unlock        
volume         vuid           wdel           logon          listconnect   
showconnect    ..             !

Mount a CIFS share on Linux:
- CIFS for latest Linux clients
- SMBFS for oldest

mount -t smbfs -o username=<username>,password=<password> //<win-box>/<share> /mnt/<name-of-mountpoint>
or
mount -t cifs //ntserver/download -o username=vivek,password=myPassword /mnt/ntserver
or
mount -t cifs CORESERVER:F\$ /mnt/temp -o username=nimda,domain=WINLAB
Password:

Add an enty into /etc/fstab:

//windows_srv/c$  /mnt/recurring  smbfs  defaults,user,noauto,username=Administrator,password=Password  0  0 
or 
MachineName:ShareFolderName /mnt/MountFolderName cifs username=UserName,domain=DomainName,password=Password 0 0

You can also use a credential file:

root@mystery:~# cat >/etc/recurring.smbpass  <<EOF
username=Administrator
password=password
EOF

By changing the permissions this can then be read only by the root user:
root@mystery:~# chmod 600 /etc/recurring.smbpass 
root@mystery:~# chown root.root /etc/recurring.smbpass

Add into /etc/fstab:
//windows_srv/c$  /mnt/recurring  smbfs  defaults,credentials=/etc/recurring.smbpass  0  0 

Check samba server parameters

# testparm -vs | grep "protocol"
        client ipc max protocol = default
        client ipc min protocol = default
        client max protocol = default
        client min protocol = CORE
        server max protocol = SMB3
        server min protocol = LANMAN1

Check using man smb.conf (/etc/samba/smb.conf)

The value of the parameter (a string) is the highest protocol level that will be supported by the client. Possible values are :

• CORE: Earliest version. No concept of user names.
• COREPLUS: Slight improvements on CORE for efficiency.
• LANMAN1: First modern version of the protocol. Long filename support.
• LANMAN2: Updates to Lanman1 protocol.
• NT1: Current up to date version of the protocol. Used by Windows NT. Known as CIFS.
• SMB2: Re-implementation of the SMB protocol. Used by Windows Vista and later versions of Windows. SMB2 has sub protocols available.
• SMB2_02: The earliest SMB2 version.
• SMB2_10: Windows 7 SMB2 version.
• SMB2_22: Early Windows 8 SMB2 version.
• SMB2_24: Windows 8 beta SMB2 version.
• By default SMB2 selects the SMB2_10 variant.
• SMB3: The same as SMB2. Used by Windows 8. SMB3 has sub protocols available.
• SMB3_00: Windows 8 SMB3 version. (mostly the same as SMB2_24)
• SMB3_02: Windows 8.1 SMB3 version.
• SMB3_10: early Windows 10 technical preview SMB3 version.
• SMB3_11: Windows 10 technical preview SMB3 version (maybe final).
• By default SMB3 selects the SMB3_11 variant.
• Normally this option should not be set as the automatic negotiation phase in the SMB protocol takes care of choosing the appropriate protocol.
• The value default refers to SMB3_11.

To create a user in samba, if local authentification, then create the user locally then use pdbedit

List all users (verbose)

# pdbedit -L -v 

Create a user, you 'll be prompt for password, the user must exist on unix

# pdbedit -a -u myuser

Remove a user

# pdbedit -x -u myuser