Login to Linux server and do the following steps

1. Update /etc/hosts and add active directory server IP and host name details

2.Login as root user and execute the following command

yum install sssd realmd oddjob oddjob-mkhomedir adcli samba-common samba-common-tools krb5-workstation openldap-clients policycoreutils-python

3.Reboot the server

4.Join the server with active directory using following command

realm join --user=administrator servername.domain.com

5.Make sure it is properly added to the domain using the bellow command

realm list

6.Update /etc/sssd/sssd.conf file

update the following

use_fully_qualified_names = False

fallback_homedir = /home/%u

7.Restart sssd service

systemctl restart sssd