Safeguard Authentication Services 4.2 - Administration Guide

Changing passwords with system utilities

On PAM-enabled systems you can use the system passwd command to change your Active Directory password.

1. Type the following command:

   # passwd

   Note: On some systems such as HPUX and Solaris, the /bin/passwd command may not use PAM. In this case you may see output such as: passwd: Changing password for bsmith Supported configuration for passwd management are as follows: passwd: files passwd: files ldap passwd: files nis passwd: files nisplus passwd: compat passwd: compat AND passwd_compat: ldap OR passwd_compat: nisplus Please check your /etc/nsswitch.conf file Permission denied If you see this output, you must use the vastool passwd command to change your Active Directory password.

2. To change the password of a local user in the /etc/passwd file, run the following command:

   passwd -r files

   This instructs the system to change the local password directly rather than using PAM to change the password.

Mapping local users to Active Directory users

Authentication Services provides a feature called "mapped user" where you can map local Unix user accounts to Active Directory user accounts. Local users retain all of their local Unix attributes such as UID Number and Login Shell, but they authenticate using their Active Directory password. Active Directory password policies are enforced. You can map users by editing configuration files on the Unix host or using Management Console for Unix.

Advantages of mapped users:

• Provides a rapid deployment path to take advantage of Active Directory authentication
• Kerberos authentication provides stronger security
• Enables centralized access control
• Enforces Active Directory Password policies
• Provides a path for consolidating identities in Active Directory with Ownership Alignment Too (OAT)
• Low impact to existing applications and systems on the Unix host
• Easy to deploy with self-enrollment

By mapping a local user to an Active Directory account, the user can log in with their Unix user name and Active Directory password.

Using map files to map users

Instead of modifying password entries directly, you can map local Unix users to Active Directory accounts using map files.

To configure a user mapping file

1. Run the following command as root to enable local map files:

   vastool configure vas vas_auth user-map-files /etc/user-map

   Note: This example configures Authentication Services to use /etc/user-map for user mappings. You can specify any filename.

2. Add user mappings to the map file.

   The format is <local user name>:<sAMAccountName@domain>.

   If you want to map a local user named jdoe to the Active Directory account for johnd@example.com, add the following line to the file:

   jdoe:johnd@example.com

Mapping the root account

You can only map the root account to an Active Directory account using the mapped-root-user setting in vas.conf.

To map the root user to an Active Directory account

1. Run the following command as root:

   vastool configure vas vas_auth mapped-root-user Administrator@example.com