Dell Open Manage Print Manager Software - Manual (Page 271)

Frequently Asked Questions 271
3 What is a keytab file? How do I get this file?
Answer: A keytab is a file containing pairs of Kerberos principals and encrypted keys derived from the
Kerberos password. You can use this file to log in to Kerberos without being prompted for a password.
You need to get this file from your domain administrator. To understand key tabs, click this link,
http://technet.microsoft.com/en-us/library/bb742433.aspx . Contact your domain administrator for more
information.
4 What does the error "ADS user is not added to OMPM." mean?
Answer: The OMPM admin must add you to the OMPM user database before you can log in and access
OMPM functionality. See the section on Adding ADS users in the User Management chapter.
5 What does the error "Unable to authenticate ADS user." mean?
Answer: This error may have been caused due to any of the following reasons:
• You are not accessing OMPM Url using the host name like this,
http://Hostname:<Port>/OMPM/OMPM.html. The Hostname must be the host name on
which OMPM is installed and the Hostname-IP address mapping entry must be added to the
'hosts' file on your Windows machine located at ' %systemroot%\system32\drivers\etc\hosts'.
• The web browser authenticates using NTLM instead of Kerberos. Click these links to solve this
problem, http://technet.microsoft.com/en-us/library/cc779070(v=ws.10).aspx ,
http://support.microsoft.com/kb/299838 , http://support.microsoft.com/kb/908209
• The web browser may not have been configured for SSO. See question 1 for details.
• Single Sign-on settings may not have been properly configured. See questions 2 & 3. Contact
your domain administrator for more details to configure single sign-on.
• You do not have the required Java Runtime Environment (JRE), JRE 7 update 45, if you have
installed OMPM on Windows Server 2012 R2 or Windows 8.1 Enterprise operating systems. You
should update to the required JRE version if you have JRE already installed or install the latest
OMPM version which includes this update.
6 How do I set up single sign-on if I have skipped at the OMPM installation?
Answer: Please note that the pre-requisite to this setup is configuring Active Directory Service. See
section Configuring Active Directory (AD) Authentication From OMPM for more details.