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Arzkaz2
Arzkaz2
New Member
February 10, 2026
Question

Fortinac-F and PEAP using UPN name in login

  • February 10, 2026
  • 1 reply
  • 100 views

Hi!

Is it true, that when using winbind and PEAP, the only way to login to network is format DOMAIN\username.

And username@domain.com doesn't work?

 

Another related question: Is there a way to enforce plain username login to specific windbind domain?

So client enters only username and password withoun domain info...

 

BR, A

1 reply

ebilcari
Staff
ebilcari
Staff
February 11, 2026

FNAC is able to strip the domain part when checking the credentials with Winbind, so technically all three options should work.

Another verification is done with the Directory through LDAP as an account lookup. This will require specific configuration depending on how many domains are integrated in the setup, as explained here. If the account is not found in the directory, the authentication will fail.

Emirjon
    Arzkaz2
    Arzkaz2Author
    New Member
    February 20, 2026

    Thank You for reply!

     

    Hmm, in my case we have 2 separate winbind domains.

    In lab, where we have only one winbind joined, it works fine in many formats:

    plain username and username@domain.com etc

     

    But the issue occurs with 2 domains....log just says "No Winbind Domain Match" without the "DOMAIN\" prefix.

     

     

    BR, A

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