Friday, June 16, 2017

Windows Authentication and Authorization

What are Authentication and Authorization?
Authentication==> verifying the identity of someone.
Authorization==> Determining whether someone has permission to access a resource.
We Can use CA for authorization.

User account type and rights
Standard--> this type of user can perform daily bases task. but he can not change system setting and delete system files and install or uninstall programs.
Administrator--> This account have all permission because its a super user of a system.

Windows authentication type
1. Kerberos Version 5 Protocol--> This is the main authentication method in windows client server model. its provide authentication for user and computer.
2. Windows NT LAN Manager (NTLM). This method is used for backward compatibility with pre windows 200 operating system and some application. but it is less secure and flexible than Kerberos 5.
3. Certificate Mapping- typically used with smart card.

Kerberos Authentication
Active Directory® Domain Services (AD DS) implements Kerberos authentication

Benefits of Kerberos Authentication for Windows 8 Clients
1. Faster connections---> User without connecting domain server can login their computer.Clients can obtain credentials for a particular server once, and then reuse them throughout a network logon session.
2. Mutual authentication---> NTLM is used when server authentication is needed but client vitrification on happens once.


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