understanding active directory
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Understanding Active Directory. Christopher Chapman | MCT Content PM, Microsoft Learning, PDG Planning , Microsoft. Active Directory Certificate Services ( AD CS). Module Overview. What is AD CS? What does AD CS do/provide?. Module Overview . - PowerPoint PPT PresentationTRANSCRIPT
Christopher Chapman | MCTContent PM, Microsoft Learning, PDG Planning , Microsoft
Understanding Active Directory
Click to edit Master subtitle style
Microsoft Virtual Academy
Active Directory Certificate Services
(AD CS)
• What is AD CS?• What does AD CS do/provide?
Module Overview
Module Overview
• Overview of Active Directory Certificate Services• Understanding Active Directory Certificate Services
Certificates • Implementing Certificate Enrollment and Revocation
Lesson 1: Overview of Active Directory Certificate Services• What Is a Certification Authority? • How CA Hierarchies Work • Options for Implementing CAs • Options for Integrating AD CS and AD DS • Demonstration: Tools for Managing AD CS
What Is a Certification Authority?A Certification Authority (CA) is an entity entrusted to issue certificates to:
• Individuals• Computers• Organizations • Services
These certificates verify the identity and other attributes of the certificate subject to other entities
How CA Hierarchies Work
Reasons for deploying more than a single server CA hierarchy:
• Usage
• Organizational divisions
• Geographic divisions
• Load balancing
CA hierarchies include a root CA and one or more levels of subordinate CAs
• Restrict administrative access
• High availability
Options for Implementing Certification Authorities
When implementing a CA solution, you can: • Use an internal private CA
• Use an external public CA
Internal CAs are less expensive and provide more administrative options, but the issued certificates are not trusted by external clients
Enterprise Stand-AloneCan use without AD DS XUses Group Policy for Trusted Root propagation X
Publishes certificates and CRL to AD DS XCan enforce credential checks during enrollment X
Can have subject name generated automatically from logon credentials X
Can use certificate templates XCan be used to generate smart card Windows domain authentication certificates
X
Can use certificate auto-enrollment X
Options for Integrating AD CS and AD DS
Demo: Tools for Managing AD CS•Certification Authority•Certificate Templates•Online Responder•Enterprise PKI•Certificates
Lesson 2: Understanding Active Directory Certificate Services Certificates • What Are Digital Certificates? • How Public Keys and Private Keys Work • Demonstration: Using Certificates to Secure Data • What Are Certificate Templates?
What Are Digital Certificates? A certificate is a digital file with two parts
• Base certificate information
• Public Key
• Public keys are distributed to all clients who request the key• Private keys are stored only on the computer from which the
certificate was requested
SSL (Encrypted)
Web Server
Web Client
Plaintext Plaintext
Different keys are used to encrypt and decrypt the message
Encrypt Decrypt
Private Key Public Key
How Public Keys and Private Keys Work
Demonstration: Using Certificates to Secure Data• In this demonstration, you will see how to use
certificates to secure data
What Are Certificate Templates? Certificate templates:
• Define what certificates can be issued by the CAs
• Define certificates used for various purposes
• Define which security principals have permissions to read, enroll, and configure the certificate template
Lesson 3: Implementing Certificate Enrollment and Revocation• Options for Implementing Certificate Enrollment • Demonstration: Using Web Enrollment to Obtain
Certificates • Administering Certificate Enrollment • Demonstration: Administering Certificate Requests • Options for Automating Certificate Enrollment• What is Certificate Revocation? • Demonstration: Revoking Certificates
Options for Implementing Certificate Enrollment
What methods are used for certificate enrollment?
• Web Enrollment
• Manual/Offline Enrollment
• Automatic Enrollment
Demo: Using Web Enrollment to Obtain Certificates• In this demonstration, you will see how to use Web
enrollment to obtain certificates
Administering Certificate EnrollmentTo obtain a certificate using manual enrollment:
Create a certificate request
Submit certificate request to CA
Obtain administrative approval for certificate
Retrieve certificate from CA and install on client
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3
4
2
Demo: Administering Certificate Requests
• In this demonstration, you will see how to administer certificate requests
Domain Computer
Enterprise CA
Group Policy
Group Policy triggers automatic request
Auto-enroll is enabled on the template from which the requested certificate is created
Options for Automating Certificate Enrollment
What Is Certificate Revocation?
Clients can ensure the certificate has not been revoked by using the following methods:
• Online Certificate Status Protocol responder service (OCSP)
• Certificate Revocation Lists (CRLs)
Certificate revocation occurs when a certificate is invalidated before its expiration period
Demonstration: Revoking Certificates • In this demonstration, you will see how to revoke
certificates
Module Review and Takeaways
• Review Questions• Summary of AD CS
Thanks for Watching!
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