openldap for local network of iMacs

Hello,

We have a network of many iMac computers in our labs. What I try to do is to configure one of them as LDAP server so that students will be able to connect from any computer. We have an ethernet internet cable connection within the lab.

Openldap server seems to work fine

docker run --name ldap-service --hostname ldap-service -p 389:389 -p 636:636 --detach osixia/openldap:1.1.8

also phpldapadmin can connect the server and I can create new user accounts.

In the other computers, I can define Network Account Server under Users & Groups. Other computers can recognize the LDAP server.

The problem is no matter what I tried, other computers couldn't succeed to login with new user accounts I defined.

Is there anything I should configure?