How to disable linux user authentication on ldap server

Question

Suppose I am having one user named user1 on my linux server, with password p1. I then did the set up of ldap server and added user1 with password p2. Now I am able to login as user1 by using both p1 and p2. How do I disable p1? Can anyone resolve this query?

Thanks.

Answer 1

You can try the below steps:
passwd -l user

The command will lock the user account in case of  LDAP authentication, you do not need user on server. And passwd -u user command can undo that.

You can try the below steps:

There is one more way to achieve that, It can be accomplished  by adding a ! before the user's password in /etc/shadow,

I hope it will work for you.