AS_REQ是初始用户身份验证请求。
在每一层中都存在一个用户身份验证难题。
示例场景是一个基本用户身份验证流,如图1 所示。
The sample scenario is a basic user authentication flow, as shown in Figure 1.
如果把pam_deny . so替换为pam_unix . so,就应用标准的身份验证方法(输入用户名和密码)。
With pam_unix.so, the standard authentication method (enter a user name and password) will be applied.
提交正确的密码(所需的身份验证信息是用户应该知道的某种信息)。
Submit the correct password (where the authentication information required is something that one should know).
必须有一种机制能够支持惟一的用户标识和身份验证。
There must be a mechanism in place to support unique user identification and authentication.
在大多数应用程序中,身份验证是通过用户名和密码的组合完成的。
In most applications, authentication is done through a combination of a user name and password.
身份验证过程对用户是透明的。
从用户概要(如果请求是由经过身份验证的用户发出的)。
From the user profile, if the request is made by an authenticated user.
然而,用户不必担心如何进行身份验证。
However, the users need not worry as to how they are authenticated.
前一节介绍的身份验证方法是用户级安全措施。
The authentication described in the previous section is user-level security.
当这些操作失败时,提示用户输入身份验证密码。
When these fail, the user is finally prompted for a password as authentication.
把用户名和密码发送到身份验证服务。
身份验证的目的是要用户证明其身份。
The whole point of authentication is for the user to prove his or her identity.
如果auth _ type属性是UNIX_AUTH,那么在客户端系统对用户进行身份验证。
If the auth_type attribute is UNIX_AUTH, then the user is authenticated at the client system.
因此,没有必要联系t witter以对此用户再次进行身份验证。
Therefore, there is no need to contact Twitter to authenticate this user again.
如何将磁盘加密识别为经过身份验证的用户吗?
How will Disk Encryption recognize me as an authenticated user?
对访问站点的用户进行身份验证。
对访问站点的用户进行身份验证。
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