RHEL 7.4 root password not working

Posted by karthikmca.bhc on Nov 08, 2018; 11:13am
URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/RHEL-7-4-root-password-not-working-tp6927.html

Hi Erman,

Got one strange issue in production rhel 7.4 where oracle ebs application and database is running and I need your help to fix the issue asap.

I have changed RHEL 7.4 root user password 7 days before using in putty with the below command
#passwd root

It prompted for new password two times and It got successfully changed. So I assumed the new password has been set to root successfully and i closed the putty session.

Today when I am trying to connect to root with its new root password it is not logging in. I tried logging in with the old root password but that to not working and its denying to connect to root.

I am surprised what went wrong!. The way I changed the root password is correct or something I missed ?

Please help me how to fix this issue because it’s a production server.

Don't we have any solution for this other than resetting the root password at kernel level? Because i dont get downtime for production to perform the recovery by editing server kernel file for reset.

Your help is highly required here.

Regards,
Karthik