Streaming Media Supplement sa2150 and sa2250

Chapter 7 Configuring Media-IXT for RealNetworks

• Media-IXT answers requests for foo.bar.com

• Media-IXT performs reverse proxy for the origin server back.door.com.

What happens to make this rule work?

1. The RealPlayer client sends a request for content at the advertised website name, foo.bar.com;

2. Media-IXT answers the request, remapping foo.bar.com to back.door.com, the origin server

according to its rules in remap.config;

3. Media-IXT applies cache.config to the request after remap.config has been applied; the rule

matches the destination host in the request, which is back.door.com;

4. Media-IXT, following the rule, does not cache content hosted on back.door.com.

Configuring CDS preload for RealNetworks

By default, CDS preload support is enabled.

To disable CDS preload

1. Edit the records.config file so that the proxy.config.mco.scheduled_update.enable

variable is set to false (0). The relevant line, which you may need to add to the file, reads:

proxy.config.mco.scheduled_update.enable INT 0

2. Restart Media-IXT.

From Media-IXT’s

bin

directory, run this command for a single Media-IXT host:

./traffic_line -b

From Media-IXT’s

bin

directory, run this command for a Media-IXT cluster:

./traffic_line -B

Configuring LDAP authentication for RealNetworks

For LDAP authentication, edit the configuration file that controls Media-IXT plugins with the appropriate

changes for the LDAP plugin,

mixt-realmedia-auth.so

To configure the LDAP authentication plugin:

1. Find this line to config/plugin.config:

mixt-realmedia-auth.so

2. Edit the line to read:

mixt-realmedia-auth.so -listen 10101 -proxy localhost:9231

This instructs the plugin to:

o listen for RealPlayer clients on port 10101. This is configurable; 10101 is given as a reasonable

default.

o forward requests to the host/port pair (localhost, 9231). Do not use the RTSP port that QuickTime

is using (1091 in forward proxy); this will cause LDAP auth to fail. Do use the port on which RealProxy

itself listens, the default being 9231.