Specifications

The reverse proxy is usually enforced by an external or LAN rewall, which only
permits authorized outbound connections to the web server through port 80 or port
443 for SSL connections. It also restricts access to only authorized proxy servers. No
other outbound connections are permitted through the rewall and no unauthorized
web users are permitted through the proxy server.
Mac OS X Server v10.6 provides forward and reverse proxy. The forward proxy is
congured in the Web service Settings pane. For information about setting up a
forward proxy, see “Conguring Web Service Proxy Settings” on page 24.
To enable reverse proxy:
1 Open Server Admin and connect to the server.
2 Click the triangle at the left of the server.
The list of services appears.
3 From the expanded Servers list, select Web.
4 Click Sites, then select the website in the list.
5 Click Proxy below the websites list.
6 Select the “Enable Reverse Proxy” checkbox.
7 In the Proxy Path eld, enter the proxy pathname.
8 In the Sticky Session Identier eld, enter a sticky session identier or choose one from
the pop-up menu.
A sticky session identier is used to bind a user that is browsing your site to the
server that the session started on. This keeps users that are browsing a website that is
supported by multiple web servers connected to the server that they started with.
9 To add balancer members, click the Add (+) button below the Balancer Members list;
enter a Server URL (worker URL) and dene its route and load factor; then click OK.
A balancer member is a server (designated by its worker URL) that shares the network
trac generated by website sessions. Multiple balancers share the website trac by
binding and routing a predetermined load to each server. This prevents a single server
from being inundated by web trac and it improves performance.
The route of the worker URL is a value appended to the sticky session ID.
The load factor is a number between 1 and 100 that denes how much load the
worker will handle.
10 Add additional balancer members as necessary, depending on your network
requirements.
11 Click Save.
46 Chapter 3 Creating and Managing Websites