sudo su apt update apt -y install sssd
/etc/sssd/sssd.conf
[sssd] domains = your_domain config_file_version = 2 services = nss, pam [domain/your_domain] id_provider = ldap ldap_uri = ldap://your_ldap_server ldap_search_base = dc=example,dc=com ldap_tls_cacert = /path/to/your/ca_certificate.pem
systemctl restart sssd
systemctl status sssd