Table of Contents
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Overview
To use LDAP to authenticate users on Windows PCs, you can use the pGina dynamically linked library. pGina is available from http://pgina.org.
Setup instructions are available in the document, Configuring pGina for LDAP Authentication For Windows XP.
In the section, Configure pGina, you can leave the Admin User and Admin Pass values blank if you don't need to authenticate UH students. This is because students are not publicly visible in LDAP and can't be found unless a special DN and password is used to connect to the directory server. Faculty and staff are publicly visible in LDAP so no Admin User and Pass are needed.
If you want to authenticate UH students, you will need to request a special DN. You will require a Special DN. They can be requested here.
Windows 7 users may need to add the IP address and hostname for the UH LDAP server, ldap1.its.hawaii.edu, to the Windows hosts file.
...
- hawcc — Hawaii Community College
- hcc — Honolulu Community College
- kcc — Kapiolani Community College
- kauaicc — Kauai Community College
- lcc — Leeward Community College
- mauicc — Maui Community College
- wcc — Windward Community College
- uhh — University of Hawaii at Hilo
- uhm — University of Hawaii at Manoa
- uhwo — University of Hawaii – West Oahu
- rcuh — Research Corporation of UH
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Questions and Answers
Question:
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Does pGina store passwords?
If LDAP authentication is successful, does pGina 3.0 use the cleartext
password and rehashes the windows password with it so that, eventually, the
repository of hashed windows passwords is a subset of the LDAP passwords
(though hashed)? We've inferred this from our internal discussions that
are somewhat dated, but would like to understand this better.
Thanks for any info. mhodges
Answer: provided by the developer
pGina does not have a "repository of hashed windows passwords." Are you
referring to the Windows local account store (SAM)?
pGina works (in a typical LDAP-based configuration) by creating a local
Windows account that has the same username and password as the LDAP
account. That local account may be deleted after the user has logged out,
if the Local Machine plugin is configured to do so. If it is not
configured to do so, there may be a set of local accounts that is a subset
of the LDAP accounts (those users who have logged on to the machine).
Those accounts may or may not have the same password as the LDAP accounts
depending on how the Local Machine plugin is configured (see the "Scramble
password after logout" option).
For more information, please take a look at the documentation for the Local
Machine plugin, and the pGina user's guide. Let me know if there is
something that could be more clear.
o http://pgina.org/docs/local_machine.html
o http://pgina.org/docs/user.html
Thanks,
David