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An X.509 digital certi?cate is the most common form of certi?cate used in modern infra- structures. It a certification contains information regarding the owner of the certi?cate, the public key of that certi?cate, and certain other fields:
_N Version number
_N Serial number
_N Algorithm identifier
Issuer name Validity
Subject name
Subject public key information
Issuer unique identifier
Subject unique identifier
Key identifier
X.509 certi?cates can be used in almost every area of security, including just about any form of communication or application. The main function of a certi?cate, as you know from your study at the MCTS level, is to link a user with certain identi?ers that label them as an individual (or entity) that your infrastructure can recognize and authenticate in a process called veri?cation.
There are three versions of X.509:
_N X.509 version 1
_N X.509 version 2
_N X.509 version 3
You do not need to understand the intricate differences among these three versions to become a capable administrator.
For the certification exam, you need to be familiar with two important and useful 70-680 certi?cate- monitoring tools that come with Windows Server 2008:
pkiview.msc????The?pkiview.msc command launches the PKI Health tool, which allows you to monitor the activity and health of your currently existing public key infrastructure. Additionally, it monitors Authority Information Access (AIA) and CRL distribution (CDP) extensions to ensure that the line of communication for the distribution of authority for certi?cates is properly monitored.
certutil.exe????The?certification?utility?(certutil.exe ) command allows you to determine the validity of issued certi?cates through the use of two switches:
_N -verify -urlfetch
_N -viewstore
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