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In order to install the Advanced Server/9000 as a backup domain
controller, a primary domain controller must be running in the domain. Verify that the primary domain controller is active on the
network and that the administrative account and password exist on
the primary domain controller. If the primary and backup domain
controllers are on different subnets and you have a Windows NT Server,
you can use WINS to locate systems easily on remote networks.When
using WINS, you will need to configure NetBIOS so that it can contact
a WINS server--refer to the Advanced Server/9000 Administrator's
Guide for details. If you don't have a Windows
NT WINS server, and the primary and backup domain controllers are
on different subnets, you will need to use nbutil
to load the NetBIOS name-to-IP address mappings as described in
the Advanced Server/9000 Administrator's Guide. During installation of a backup domain controller, you will
be prompted for the server name, server role, domain name, and administrative
account password. For information about these items, see "Data
Needed during Installation," earlier in this chapter. When running asu_inst, it will first ask the type of setup
you wish to perform: Express Setup or
Custom Setup: Express Setup - the installation scripts use default
settings so installation is quick and easy. You may
change these settings after installation completes.
The server is installed as a primary domain controller
in its own domain. |
Custom Setup - this mode allows you to specify the
settings at the beginning of installation. If you
select this mode, you must specify the server's name,
the domain it will participate in, and the role in
that domain. |
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Selecting the Express Setup will set up the server using the
defaults. The system name will be used for the server name, the
server role will be a Primary Domain Controller, the domain name
will be the system name appended with _dom, and administrative account
password will be password. Express setup
does not require any user interaction to complete. Selecting Custom
Setup will prompt for the server name, server role, domain name,
and administrative account password. User interaction is required
for Custom Setup. At the prompt, select 'y' to use Express Setup,
'n' to use Custom Setup. After asu_inst has completed, you can use
the joindomain, setservername,
and setdomainname commands to change the server
configuration. See the Advanced Server/9000 Administrators
Guide for more information on these commands. To install the Advanced Server/9000 as a backup domain controller Run the utility to configure Advance Server/9000: /opt/asu/lanman/bin/asu_inst The system begins the installation process which
includes incorporating and updating the saved files and adding the
server to the protocol stack. The system displays the following message: Advanced Server for UNIX provides a NETLOGON service which simplifies the administration of multiple servers. A single user accounts database can be shared by multiple servers grouped together into an administrative collection called a domain. Within a domain, each server has a designated role. A single server, called the primary domain controller, manages all changes to the user accounts database and automatically distributed those changes to other servers, called backup domain controllers, within the same domain. You may now supply a server name (the name which this server will be known on the network), the role that this server will perform in that domain (primary or backup), and a domain name. |
Enter the name of the server or press Enter to select 'uname': |
Enter the name of the server or press ENTER to accept
the default name. The system displays the following message: Each server must be given a role in a domain. The possible
roles are:
primary domain controller:
Administration server. Distributes user accounts information
to backup domain controllers. Validates network logon
requests. There can be only one primary domain controller per
domain.
backup domain controller:
Receives user account information from the primary domain
controller. Validates network logon requests and can be
promoted to primary if the primary domain controller is not
accessible.
Enter role (primary or backup): |
Type backup
and press ENTER. The system displays the following message: This installation will configure the server as a backup domain controller for you. You will be prompted to enter the name of the primary domain controller, and an administrative account name on the primary along with its password. In order for this configuration to complete successfully, the primary
domain controller must be running and connected to the
network. |
Enter the name of the primary domain controller (eg servername): |
Enter the name of the primary domain controller. The system displays the following message: Enter the name of an administrative account on <primary domain controller> or press Enter to select 'administrator': |
Enter the name of an administrative account that
exists on the primary domain controller and press ENTER. Enter a password for the administrative account
for the server (backup domain controller) you are installing. Re-enter
it when prompted.
| | | |  | NOTE: You must correctly enter an administrative account name
and password that already exist on the primary domain controller
in order to install a backup domain controller successfully. | | | | |
The system then tries to contact the primary domain controller. If the connection to the primary domain
controller is successful, you will be prompted to confirm your choices
of server role, domain, and primary domain controller. Confirm that your choices are correct or type n
to re-enter your choices. The system then creates the user accounts database, access
control list, and share list file. It starts the Advanced Server/9000
and sends mail to root which contains a listing of the available
resources. Also at this time, the primary domain controller begins to
replicate the user accounts database to the backup domain controller.
This process is done automatically. The time it takes to complete
depends on the size of the user accounts database on the primary
domain controller. When you see the following message, installation of the primary
domain controller is complete. * The Advanced Server for UNIX Systems is now operational. |
If the connection to the primary domain controller
is unsuccessful, you will be notified that the connection attempt
failed. The system displays the following: Do you want to retry or enter new information [y,n]? |
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If you type n
and press ENTER or if you continue to be unsuccessful in contacting
the primary domain controller, the system displays the following
message: This server could not be configured as a backup domain
controller at this time. Installation will continue with
this server configured as a primary domain controller with
a randomly generated domain name. |
After installation is complete and the problems contacting
the primary domain controller are resolved, run the
command: joindomain, which is located in the directory:
/opt/asu/lanman/bin. With this command you can configure
the server as a backup controller in any domain or as a
primary domain controller. |
This server will be the primary domain controller for the
domain. An administrative account Administrator will now
be created for you to manage the domain: |
Enter the password for Administrator: |
It is recommended you change the administrator password at
this time. If you chose not to change it, then the default password
is password. Record this password for future
reference. Enter a password for the administrator account. It can
be up to 14 characters in length. Re-enter it when prompted. The system continues the installation process which includes
creating a user accounts database, a new access control list database,
and a new share list file. The asu_inst script
starts the Advanced Server/9000 and sends mail to root which contains
a listing of the available resources. If the Advanced Server/9000
does not start, check the error messages and follow the instructions
under Troubleshooting Installation problems. When you see the following message, installation of the backup
domain controller is complete. * The Advanced Server for UNIX Systems is now operational. |
The Advanced Server/9000 assigns a randomly-generated domain
name which is composed of a name similar to the machine name and
a number. After the server is installed as a primary domain controller,
you can use the joindomain command to change
the role of the server to backup and to join the domain of the primary
domain controller.
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