Create the Machine Trust Accounts

Creating the Machine Trust Accounts for a Windows Client (Client = member server) on a HP CIFS Server acting as a PDC means:

Creating machine accounts in the file named /etc/passwd
Creating the machine accounts entries in the file named /var/opt/samba/private/smbpasswd

The following steps are used to create a machine account for a Windows Client on a HP CIFS Server acting as a Primary Domain Controller (PDC).

On the Samba PDC Server, use the following command(s) to create a new group called “machines”. This group should be created in the /etc/group file.
groupadd machines
Create the machine trust account for a Windows Client in the /etc/passwd file, using the following command:
useradd -g machines -c NT_workstation -d /home/temp -s /bin/false client1$
The resulting entry for a client machine named “CLIENT1” would be:
client1$:*.801:800:NT Workstation 1:/home/temp:/bin/false
where 801 is a uid and 800 is the group id of a group called “machines.” A uid or group id can be any unique number. You may find that uid values 0 through 100 are considered special, and/or server specific. This may, or may not apply to your system.
The machine account is the machine’s name with a dollar sign character (“$”) appended to it. The home directory can be set to /home/temp. The shell field in the /etc/passwd file is not used and can be set to /bin/false.
On the Samba PDC server, run the “smbpasswd” program to add a machine entry for a Windows client to the /var/opt/samba/private/smbpasswd file. Example:
smbpasswd -a -m client1
In this example, the “client1” is the machine name of a Windows Client.

Technical documentation