Configure LDAP

unknown

Good Morning, I want to configure LDAP authentication but i have lots error

my company is = pippo
my domain is = pippo.local
my account DN is = operator
I don't know key attribute
I use ObjectClass=person

When I do test i receiver

Invalid Admin name ora invalid searchFilter

my test are

companyname\name.surname
password

Thanks for your help
 Bye
Giuseppe