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Ubuntu SSSD LDAP authenticate with username & email address

As of now I am able to authenticate with Onelogin VLDAP service using the username. I would also like to authenticate with email address in addition to the username.

Some of users are created with their email address as their username and I am unable to authenticate against LDAP with these email addresses as their usernames.

The /etc/sssd/sssd.conf is : https://pastebin.com/raw/jMzmRFC4

The /etc/nsswitch.conf is : https://pastebin.com/raw/s8Eap6HP

The /var/log/sssd/sssd_domain.com.log is :

part#1/3 : https://pastebin.com/raw/mwpcCDx3

part#2/3 : https://pastebin.com/raw/UxfzxkNJ

part#3/3 : https://pastebin.com/raw/VLNTyCzf

BTW: the usernames are:

Working Case: username = abc123

Not Working Case: usernames = ldauser01@mydomain.com, ldauser02@mydomain.com , ldapuser01@mydomain.com (emailaddress of ldapuser01) ldapuser02@mydomain.com (emailaddress of ldapuser02)

The user ldapuser02@mydomain.com has never authenticated in the system and hence nothing is cached

Please help to resolve this.

I also observed that even after keying the password twice, we cannot login into the Ubuntu GUI, it just returns back to the screen to key in the password

  • Sometimes succeeds after 2 attempts, and sometimes 3 attempts

The OneLogin VLDAP services are configured as :Virtual distinguished nameVirtual DN: cn=email,ou=users,dc=mysubdomain,dc=onelogin,dc=comUser Identifier (cn)

Note: When

a. "ldap_user_name = username" in [domain/mydomain.com], we can authenticate with username

b. "ldap_user_name =" in [domain/mydomain.com] blank or the whole line is commented, we cannot authenticate with any user account (username or mail address)

c. "ldap_user_name = mail" in [domain/mydomain.com], we can authenticate with username

How to resolve this ?


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