Rewriter Issues; Discovering The Issue; Rewriting Fails On A Page With Numerous Hrefs; Links Are Broken Because The Rewriter Sends The Request To The Wrong Proxy Service - Novell ACCESS MANAGER 3.1 SP2 - ACCESS GATEWAY GUIDE 2010 Manual

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7.5 Rewriter Issues

Section 7.5.1, "Discovering the Issue," on page 223
Section 7.5.2, "Rewriting Fails on a Page with Numerous HREFs," on page 223
Section 7.5.3, "Links Are Broken Because the Rewriter Sends the Request to the Wrong Proxy
Service," on page 223
Section 7.5.4, "Reading Configuration Files," on page 224
Section 7.5.5, "Rewriter Does Not Rewrite Content in Files with a Non-Default Extension," on
page 224
Section 7.5.6, "An Additional DNS Name without a Scheme Is Not Rewritten," on page 225
Section 7.5.7, "Rewriting a URL," on page 225
Section 7.5.8, "The Access Gateway Rewrites a Host Header with a Port Number," on
page 226

7.5.1 Discovering the Issue

To isolate a rewriter issue:
1 Go to the Web server, access the page that is causing the rewriter problem, use the View Source
option of the browser, then copy the source to a text file.
2 Access the page from Access Manager, view the source, and copy it to a text file.
3 Use a diff tool to compare the differences between the two files.
This should help you identify the URLs that need to be rewritten but aren't being rewritten.

7.5.2 Rewriting Fails on a Page with Numerous HREFs

Although the rewriting failure occurs when downloading large amounts of data from a protected
Web server, it is not the size or the timeout of the page that is the issue. It is the number of links to be
rewritten. The Access Gateway has a data size limit for the number of references that the rewriter
can rewrite on a page.
The solution is to reduce the number of HREFs on the page that need to be rewritten. If the problem
is occurring because the rewriter is rewriting HTTP to HTTPS, you can solve this problem by
disabling multi-homing for the Web server and by rewriting the Web page to use relative links. This
reduces the number of links that need to be rewritten.
7.5.3 Links Are Broken Because the Rewriter Sends the
Request to the Wrong Proxy Service
When links on the Web server are rewritten to the wrong proxy service, the reverse proxy and Web
servers might have the following configuration:
The initial request from the browser is to a path-based multi-homing proxy service.
The reverse proxy is configured to service one or more path-based proxy services.
Troubleshooting the Access Gateway Appliance 223