[jcifs] Confused about Windows AD logon name

tetsu.soh at nts.ricoh.co.jp tetsu.soh at nts.ricoh.co.jp
Fri Jun 6 01:33:10 GMT 2008


I am seeking some specification about Windows 2003 AD logon name. I googled
but cannot find any official document.

Here is my problem. I am trying to access Windows AD by Java JNDI api.
I can authenticate by: (algorithm is "Simple")
1. UPN, such as, username at domain.com
2. DN, such as, cn=username, ou=member,dc=company,dc=com
and also with
3. RDN? such as, cn=username, I don't know exactly what is this but as long
as this name is unique on the domain, it works.

However, the last type logon name doesn't work with "Administrator". I
mean, I can authenticate with user principal as "cn=foo" but cannot
It seems that Administrator account is special.
I want to know why?

And I'd appreciate any information on this problem.

Best regards,

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