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Configuring Html Rewriting; Section 1.6, "Configuring Html Rewriting - Novell ACCESS MANAGER 3.1 SP1 - GATEWAY GUIDE Manual

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Password: Select Credential Profile > LDAP Password.
7 Click OK.
8 To save the policy, click OK, then click Apply Changes.
For more information on creating such a policy, see
Policy" in the
Novell Access Manager 3.1 SP1 Policy Management
9 Assign this policy to the protected resources:
9a Click Devices > Access Gateways > Edit > [Name of Reverse Proxy].
9b Click the name of the teaming proxy service, then click the Protected Resources tab.
9c For each teaming protected resource, click the Identity Injection link, select the Identity
Injection policy, click Enable, then click OK.
9d Click OK.
9e To save the configuration changes, click Devices > Access Gateways, then click Update.

1.6 Configuring HTML Rewriting

Access Gateway configurations generally require HTML rewriting because the Web servers are not
aware that the Access Gateway machine is obfuscating their DNS names. URLs contained in their
pages must be checked to ensure that these references contain the DNS names that the client browser
understands. On the other end, the client browsers are not aware that the Access Gateway is
obfuscating the DNS names of the resources they are accessing. The URL requests coming from the
client browsers that use published DNS names must be rewritten to the DNS names that the Web
servers expect.
Figure 1-3
HTML Rewriting
Figure 1-3
Browsers
Request
<HTML>
Reply
<img src=http://www.novell.com/path/image1.jpg/>
</HTML>
The following sections describe the HTML rewriting process:
Section 1.6.1, "Understanding the Rewriting Process," on page 42
Section 1.6.2, "Specifying the DNS Names to Rewrite," on page 43
Section 1.6.3, "Defining the Requirements for the Rewriter Profile," on page 46
Section 1.6.4, "Configuring the HTML Rewriter and Profile," on page 52
Section 1.6.5, "Disabling the Rewriter," on page 57
illustrates these processes.
HTML Headers
GET /path HTTP/1.1
Host: www.novell.com
HTML Page: Source
Configuring the Access Gateway to Protect Web Resources
"Configuring an Authentication Header
Guide.
Access Gateway
novell.com/path
HTML Headers
GET HTTP/1.1
Host: data.com
HTML
Rewriter
HTML Page: Source
<HTML>
<img src=http://data.com/image1.jpg/>
</HTML>
Web Server
data.com
41

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