CA SSO Agent for SAP Guide › Front-End Web Server Configuration

Front-End Web Server Configuration

This section contains the following topics:

Apache Web Server

This configuration requires two apache modules: mod_proxy (used for transforming the Apache web server into an intermediary server); and mod_rewrite (performs modifications to the URL based upon a set of rules and configurations).

See the SAP documentation to configure the Apache web server as a front‑end web server to the Web AS.

Verify an Apache Web Server Configuration - Example

The following steps summarize how to verify the configuration. Use the steps only for reference.

Follow these steps:

Open the Apache web server configuration file (httpd.conf).

Make sure that the file contains the following entries:

LoadModule rewrite_module modules/mod_rewrite.so
LoadModule proxy_module modules/libproxy.so
LoadModule proxy_connect_module modules/mod_proxy_connect.so
LoadModule proxy_http_module modules/mod_proxy_http.so
AddModule mod_rewrite.c
AddModule mod_proxy.c
RewriteLog "/etc/httpd/logs/rewrite_log"
RewriteLogLevel 9

Between the Location tags, specify the rules and conditions to use for the redirection. Specify a Location section for each application you want the Apache web server to redirect, for example:

<Location /application_root_dir>
RewriteEngine On
RewriteCond %{THE_REQUEST} \.jsp
RewriteRule ^(.+) http://somehost.com:90%{REQUEST_URI} [P]
RewriteCond %{THE_REQUEST} Example
RewriteRule ^(.+) htt://somehost.com:90%{REQUEST_URI} [P]
</Location>

Sun Java Systems Web Server

See the SAP documentation to configure the Sun Java Systems web server as a front-end web server to the Web AS.

Verify a Sun Java Systems Web Server Configuration Using RPP - Example

The following process summarizes how to verify the configuration (obj.conf) of a Sun Java System Web server in reverse proxy mode. Use the steps only for reference.

Follow these steps:

The NameTrans directive takes the following form:
```
NameTrans fn="map" from="/realma" name="reverse-proxy-/reamla" to="http:/realma"
```
Where "from=" contains the name of local virtual path (for example, /realma) and "to=" contains the remote virtual path (for example, http:/realma). Use the format in the sample to specify "to=" (http:/<Virtual Path>).

The following Object directives are appended at the end of the obj.conf file:

<Object name="reverse-proxy-/reamla">
Route fn="set-origin-server" server="<URL>"
</Object>
<Object ppath="http:*">
Service fn="proxy-retrieve" method="*"
</Object>

Where reverse-proxy-/reamla is name mentioned in NameTrans directive, and the <URL> is a URL for the remote server. For example:

<Object name="reverse-proxy-/reamla">
Route fn="set-origin-server" server="http://server.myorg.org:CA Portal"
</Object>
<Object ppath="http:*">
Service fn="proxy-retrieve" method="*"
</Object>