The Apache web server can be used as a reverse proxy server. The optional module mod_proxy is loaded and configured to enable this.
Loads the required modules:
Step 01> In httpd.conf, Insert the following lines:
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_http_module modules/mod_proxy_http.so
Configure mod_proxy settings:
Step 02> The ProxyPreserveHost setting causes the Host: HTTP header to be preserved during the forwarding. It is required to make the Dekho web services function correctly. If this is not included, the dynamically-generated WSDL of the web services will be incorrect.
Step 03> The <Proxy> tag is used to control security. The example shown allows all clients to access the reverse proxy.
Alter this setting to suit the local site:
Allow from all
The ProxyPass directives create the forwarding rules:
Step 04> Replacewith the address of the local Dekho server
Step 05> Replacewith the address of the ArcGIS Server, including port 8399 if using ArcGIS Server Java edition.
ProxyPass /Dekho/ http://Dekhoserver:8080/Dekho/
ProxyPass /DekhoCache/ http://Dekhoserver:8080/DekhoCache/
ProxyPass /ArcGIS/services http://arcgisserver/ArcGIS/services
ProxyPass /ArcGIS/rest/services http://arcgisserver/ArcGIS/rest/services
ProxyPass /arcgisoutput http://arcgisserver/arcgisoutput
INFORMATION: The correct URL for Dekho includes a trailing slash, eg, http://Dekhoserver:8080/Dekho/. When accessing Dekho by directly connecting to the Java application server (eg, Apache Tomcat), the trailing slash is added automatically if it is missing. When accessing Dekho via a reverse proxy, the trailing slash is not added automatically if it is missing. Instead a 404 error (page not found) is returned to the end user.