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PPTP was the earliest widely supported VPN protocol. Developed before the exist ence of IPSec and PKI standards, PPTP provides for automated configuration and supports legacy authentication methods. Because PPTP does not require a PKI, it can be much more cost-effective and easier to deploy in situations that do not require the most sophisticated security. When interoperating with third-party ven dors, PPTP might also be the only viable option when VPN connections must pass through NATs, which are incompatible with any IPSec implementation that does not support the newly developed IPSec NAT traversal (IPSec NAT-T) technology, currently in IETF draft form. With the proper down-level clients, or hotfixes/service packs from Microsoft, all currently Microsoft-supported Windows operating sys-

NET application plans to use Windows authentication, you must clear the Anonymous Access check box If you don t do this, all users will be allowed access to your application without authentication taking place One reason you might use Windows authentication is to enable the application to get the identity of the user When Windows authentication is set correctly in IIS (that is, Anonymous Access is disabled) and in ASPNET, you ll be able to get the domain name of the user in ContextUserIdentityName Caution If you don t properly set Windows authentication in both IIS and ASPNET, ContextUserIdentityName won t return the value you expect You might get the name of the anonymous user or even no user if both IIS and the Webconfig file for a virtual directory don t agree.

enabled="true" requestLimit="10" pageOutput="false" traceMode="SortByTime" localOnly="false" mostRecent="true" />

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You are interested in examining the data that is posted to the web server. What trace result section can you use to see this information

A. The Control Tree section B. The Headers Collection section c. The Form Collection section D. The Server Variables section

This is a very common problem seen on the newsgroups throughout the Betas for ASPNET Similar problems existed in ASP; however, ASPNET has some configuration settings that might lull you into thinking that ASPNET is controlling authentication all by itself That s not the case ASPNET provides more support for the existing IIS authentication methods, but it doesn t override them The Authenticated Access section of the Authentication Methods dialog box contains three check boxes: Basic Authentication, Digest Authentication For Windows Domain Servers, and Integrated Windows Authentication Selecting Basic Authentication sends the user name and password in essentially clear text from the client to the server (The credentials are encoded but not encrypted) The Digest Authentication For Windows Domain Servers option addresses many of the weaknesses of Basic Authentication, with a couple of restrictions.

tems, including Windows Server 2000, support IPSec NAT-T Therefore, lack of support should not be a major concern if an organization wants to deploy IPSec-based solutions on Windows platforms If third-party interoperability is needed, make sure that the third-party vendor has successfully implemented draft 02 of the IETF IPSec NAT-T specifications With Windows Server 2003, you can use IPSec transport mode within a PPTP tun nel to get extremely powerful encryption services while also maintaining the ability to send information through NATs The Microsoft implementation of PPTP since Windows 2000 adds security enhancements while preserving the other useful prop erties of PPTP, primarily through the addition of support for MS-CHAP v2 and EAP These enhancements provide the ability to use smart cards and public-key certifi cates to strengthen both user authentication and encryption keys This strengthens protection against both user impersonation and brute-force decryption of inter cepted packets.

You want to configure ASP.NET health monitoring to log information every time a user fails to log on to the server. Which web event class should you use

A. WebRequestEvent B. WebAuditEvent c. WebApplicationLifetimeEvent D. WebAuthenticationSuccessAuditEvent

With Windows applications, you have no choice but to consider deployment; typically, the client needs to be installed on every user s computer. With websites, deployment tends to be an afterthought, because users already have their web browsers installed. However, developers often need to deploy code to staging and production servers on a regular basis, which can be tedious. In addition, many websites are deployed to multiple web servers simultaneously to provide high availability and performance. Finally, many web developers must release their applications commercially; this means that other people need to be able to deploy them in environments that the developer knows nothing about. For each of these scenarios, the developer must create a plan to deploy the application and any updates that need to be released in the future. This lesson describes the different techniques available for deploying websites: manually copying files, publishing web applications, creating a Web Deployment Project, creating a Web Setup Project, using the Copy Web tool, and publishing websites.

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