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用admin,admin登录到redmine，改环境为中文，然后到ldap认证里，添加一个ldap配置

Name = My Directory
Host = host.domain.org
Port = 389
LDAPS = no
Account = MyDomain\UserName (or UserName@MyDomain depending on AD server)
Password = <password>
Base DN = CN=users,DC=host,DC=domain,DC=org
On-the-fly user creation = yes
Attributes
Login = sAMAccountName
Firstname = givenName
Lastname = sN
Email = mail

 同步AD中的用户账号到redmine数据库users表， 设置默认语种为中文，非管理员，AD认证。