Novell ACCESS MANAGER 3.1 SP1 - GATEWAY GUIDE Manual page 45

If the Web server listens on one port (for example, 80), and redirects the request to a secure port
(for example, 443). The response to the user comes back on https://<DNS_name>:443. This
does not match the request which was sent on http://<DNS_name>:80. If you add the DNS
name to the list, the response can be sent in the format that the user expects.
If an application is written to use a private hostname. For example, assume that an application
URL reference contains the hostname of home (
would need to be added to the Additional DNS Name List.
If you enable the Forward Received Host Name option on your path-based multi-homing
service and your Web server is configured to use a different port, you need to add the DNS
name with the port to the Additional DNS Name List.
For example, if the public DNS name of the proxy service is www.myag.com, the path for the
path-based multi-homing service is /sales, and the Web server port is 801, the following DNS
name needs to be added to the Additional DNS Name List of the /sales service:
http://www.myag.com:801
When you enter a name in the list, it can use any of the following formats:
DNS_name
host_name
IP_address
scheme://DNS_name
scheme://IP_address
scheme://DNS_name:port
scheme://IP_address:port
For example:
HOME
https://www.backend.com
https://10.10.15.206:444
These entries are not case sensitive.
Determining Whether You Need to Exclude DNS Names from Being Rewritten
If you have two reverse proxies protecting the same Web server, the rewriter correctly rewrites the
references to the Web server so that browser always uses the same reverse proxy. In other words, if
the browser requests a resource using acme.com.uk, the response is returned with references to
acme.com.uk and not acme.com.usa. If you have a third reverse proxy protecting a Web server, the
rewriting rules can become ambiguous. For example, consider the configuration illustrated in
1-5.
http://home/index.html
Configuring the Access Gateway to Protect Web Resources
). This hostname
Figure
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