c# qr code generator source Implementing ISA Server Publishing in C#.NET

Encode QR Code ISO/IEC18004 in C#.NET Implementing ISA Server Publishing

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Implementing ISA Server Publishing
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Lesson Summary
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Generating QR Code ISO/IEC18004 In Visual Studio .NET
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Server publishing rules are used on ISA Server to map a port number on an external interface of the ISA Server computer to the IP address of an internal server providing a specific service. Server publishing rules are fairly easy to configure. For most rules, all you need to do is choose the protocol that you want to publish and enter the IP address for the server that you are publishing. There are many possible scenarios where you can use a server publishing rule. Some examples include publishing a secure Web site, an FTP server, an RPC server, a VPN server, and a Terminal Services server. There are many situations in which you may need to troubleshoot Web and server publishing. To troubleshoot ISA Server Web and server publishing issues check whether the resource is available on the local network, check name resolution, and then check the publishing rule configuration.
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Lesson 5
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Configuring ISA Server Authentication
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Lesson 5: Configuring ISA Server Authentication
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In many cases, the network resources that are published by Web or server publishing rules are confidential and should be available only to authorized users. To enforce this, you can configure ISA Server 2004 to require authentication for all users accessing a published resource. This lesson describes the types of authentication supported by ISA Server 2004 and how to configure authentication.
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After this lesson, you will be able to
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Describe how access rules and authentication work together to provide secure Internet
access
Identify the Web publishing authentication options on ISA Server 2004 Describe how RADIUS authentication works and how to implement it Implement SecurID for ISA authentication
Estimated lesson time: 30 minutes
How Authentication and Web Publishing Rules Work Together
Authentication is an integral part of any firewall policy. You can limit access to internal resources by limiting access based on the IP address of a computer. However, in most cases, it is much more effective to provide access only to specific users who have authenticated themselves.
Important
Authentication applies only to Web publishing rules. You cannot configure authentication on server publishing rules.
Authentication and Web publishing rules work together in the following ways:
Users can gain access to an internal resource protected by ISA Server only if an access rule or publishing rule grants access to that resource. When you create a publishing rule, you can limit which users can gain access to the resource using the rule. Whenever a rule is configured to grant access to a specific set of users other than the All Users user set, authentication becomes an important part of how the rule is evaluated. For Web publishing and secure Web publishing rules, you must configure a Web listener as part of the rule definition. The Web listener defines which authentication methods are enabled. You can configure a Web listener to use more than one authentication mechanism. These authentication mechanisms can be used simultaneously on a Web listener: Basic, Digest, Integrated, and Client Certificate Authentication. RADIUS, SecurID, or forms-based authentication methods must be the only
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Implementing ISA Server Publishing
authentication mechanism configured on a Web listener. Once you have configured the Web listener for a Web publishing or secure Web publishing rule, you can then specify which users can gain access to resources based on the rule.
When ISA Server receives a request for an internal resource, it processes the firewall policy rules in order. When a firewall rule matches the client request, but ISA Server requires client authentication to validate the match, ISA Server will request that the client authenticate. In other words, if the firewall rule limits access to users other than the All Users user set, then the user must provide credentials to prove his or her identity.
By default, Web publishing rules and secure Web publishing rules grant access to the All Users user set, which includes anonymous, or unauthenticated, users. To limit access to a Web publishing rule, remove the All Users user set and add the All Authenticated Users or a specific user set.
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