Apple Mac OS X Server Print Service Administration For Version 10.4 or Later Manual do Utilizador Página 199

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Chapter 11 Solving Problems 199
Users Can’t Log In or Authenticate
Try these techniques to determine whether the source of the authentication problem is
configuration related or the password itself:
Reset the password to a known value, then determine whether there is still a
problem. Try using a 7-bit ASCII password, which is supported by most clients.
Make sure that the password contains characters supported by the authentication
protocol. Leading, embedded, and trailing spaces as well as special characters (for
example, Option-8) are not supported by some protocols. For example, leading
spaces work over POP or AFP, but not over IMAP.
Make sure that the users current keyboard can generate all the characters in the
users password.
Basic authentication doesn’t support many authentication methods. To increase the
possibility that a users client applications will be supported, set the users password
type to Open Directory or suggest that the user try a different application.
If users account resides in a directory domain that is not available, you can create a
user account in a directory domain that is available.
Make sure the client software encodes the password so that it is recognized correctly.
For example, Open Directory recognizes UTF-8 encoded strings, which may not be
sent by some clients.
Make sure that the users current application and operating system support the
users password length. For example, Windows applications that use the LAN
Manager authentication method support only 14-character passwords, so a password
longer than 14 characters would cause an authentication failure even though
Mac OS X Servers Windows service supports longer passwords.
If you disabled any of the Open Directory Password Servers authentication methods,
such as APOP or CRAM-MD5, then the users applications will be unable to
authenticate with the disabled methods. The Open Directory administration guide
explains how to disable and enable authentication methods with a command-line
tool. After enabling or disabling Open Directory Password Server authentication
methods, you may need to reset the user’s password.
For Kerberos troubleshooting tips, see “Users Can’t Authenticate Using Single Sign-
On or Kerberos” on page 201.
If a Mac OS 8.1–8.6 computer fails to authenticate for Apple file service, the
computer’s AppleShare Client software may need upgrading.
Mac OS 8.6 computers should use AppleShare Client version 3.8.8.
Mac OS 8.1–8.5 clients should use AppleShare Client version 3.8.6.
Mac OS 8.1–8.6 client computers that have file server volumes mount automatically
during startup should use AppleShare Client version 3.8.3 with the DHX UAM (User
Authentication Module) installed. The DHX UAM is included with the AppleShare
Client 3.8.3 installation software.
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