您不需要使用Samba，AD直接支持Kerberos和LDAP。您没有理由在大多数发行版上使用任何外部软件。
对于Debian / Ubuntu，您可以使用libnss-ldap和libpam-krb5来完成。有一些技巧可以使其达到100％。这假设您为Linux用户填充了“ unixHomeDirectory”，您的Linux机器使用的是Windows系统通用的NTP（由Kerberos要求），并且可以使用纯文本NSS查找（不是密码，而是组成员信息等）-您也可以使用TLS，但设置起来比较复杂）。除非您设置为使用TLS，否则不应在pam中使用pam_ldap作为密码或身份验证源。
/etc/ldap.conf
# LDAP Configuration for libnss-ldap and libpam-ldap.
# Permit host to continue boot process with out contacting LDAP server
bind_policy soft
# Define LDAP servers to use for queries, these must be Global Catalog servers
uri ldap://ldap.site.company.local
# Define root search location for queries
base dc=company,dc=local
#debug 1
# LDAP version, almost always going to be v3, it is quite mature
ldap_version 3
# Username used to proxy authentication. You can have this in a separate file owned by root for security OR use TLS/SSL (see man page)
# Do NOT use LDAP for authentication if you are using plain text binds, use Kerberos instead (and LDAP for authorization only). See libpam-krb5.
binddn cn=ldap-auth-svc,ou=ldap,ou=services,dc=site,dc=company,dc=local
# Password for proxy acct
bindpw SooperSekeretPazzwerd
# TCP port to perform queries on, 3268 is a Global Catalog port which will reply for all users in *.company.local
port 3268
# Search range scope (sub = all)
scope sub
# Tell the client to close TCP connctions after 30 seconds, Windows will do this on the server side anyways, this will prevent errors from showing up in the logs.
idle_timelimit 30
# Expect queries for group membership to return DN for group members instead of usernames (lets you use MSAD group membership seamlessly)
nss_schema rfc2307bis
# Filters - User accounts must have a UID >= 2000 to be recognized in this configuration and must have a unixHomeDirectory defined.
nss_base_group dc=company,dc=local?sub?&(objectClass=group)(gidNumber=*)
nss_base_user dc=company,dc=local?sub?&(objectClass=user)(!(objectClass=localputer))(uidNumber>=2000)(unixHomeDirectory=*)
nss_base_shadow dc=company,dc=local?sub?&(objectClass=user)(!(objectClass=localputer))(uidNumber>=2000)(unixHomeDirectory=*)
# Object Class mappings. You may want to have the posixAccount to map to "mail" and have users login with their email addresses, i.e. "nss_map_objectclass posixAccount mail".
nss_map_objectclass posixAccount user
nss_map_objectclass shadowAccount user
nss_map_objectclass posixGroup group
# Attribute mappings.
nss_map_attribute uniqueMember member
nss_map_attribute uid sAMAccountName
nss_map_attribute homeDirectory unixHomeDirectory
nss_map_attribute shadowLastChange pwdLastSet
# Attribute in LDAP to query to match the username used by PAM for authentication
pam_login_attribute sAMAccountName
# Filter for objects which are allowed to login via PAM
pam_filter objectclass=User
假设您的Linux机器使用的是知道AD的DNS服务器（可以解析带有适当SRV记录的_msdcs区域），则无需编辑/etc/krb5.conf。
/etc/nsswitch.conf应该为用户，组，影子提供“文件ldap”。
对于使用SSSD的Red Hat：
/etc/sssd/sssd.conf
[domain/AD]
id_provider = ldap
auth_provider = krb5
chpass_provider = krb5
access_provider = ldap
ldap_uri = ldap://ldap.company.local:3268/
ldap_search_base = dc=company,dc=com
ldap_default_bind_dn = cn=ldap-auth-svc,ou=ldap,ou=services,dc=site,dc=company,dc=local
ldap_default_authtok = SooperSekeretPazzwerd
ldap_schema = rfc2307bis
ldap_user_object_class = user
ldap_group_object_class = group
ldap_user_name = sAMAccountName
ldap_user_home_directory = unixHomeDirectory
enumerate = true
ldap_tls_reqcert = never
ldap_tls_cacertdir = /etc/openldap/cacerts
ldap_id_use_start_tls = False
cache_credentials = True
krb5_realm = SITE.COMPANY.COM
case_sensitive = false
[sssd]
services = nss, pam
config_file_version = 2
domains = AD
[nss]
filter_users = root,named,avahi,nscd