As a workaround that doesn't require changing /etc/nsswitch.conf, you can also explicitely disable sudo support for your sssd domain :
[sssd] services = nss, pam, sudo
[mydomain/LDAP] sudo_provider = none
As a workaround that doesn't require changing /etc/nsswitch.conf, you can also explicitely disable sudo support for your sssd domain :
[sssd]
services = nss, pam, sudo
[mydomain/LDAP]
sudo_provider = none