Streaming Media Supplement sa2150 and sa2250

This chapter assumes provides tables and notes that bring together configuration information about all three

streaming formats. to serve as an introduction to Chapters 7, 8 and 9, which are each about one single streaming

format.

In this chapter, we cover three topics:

• “Media-IXT configuration” below

• “Configuration file summary tables” on page 60

• “Media-IXT port usage” on page 61

Media-IXT configuration

To use reverse proxy caching, hierarchical proxy caching, or selective caching, you must edit configuration

files. It’s easy to be confused by the differences in the ways that these files are edited. This chapter provides an

overview of which configuration files pertain to which features, and the correct way to edit each.

This manual uses expressions like Media-IXT’s config directory, or just the config directory, when explaining

where to find configuration and other files. The full path of the directory in question is under

/home/ts4<version>/.

Any time we refer to a directory as Media-IXT’s something directory, that directory is located within Media-

IXT’s home directory of /home/ts4<version>/.

The full pathname of the Media-IXT home directory is contained in this file, created when Media-IXT was

installed:

/etc/traffic_server

This command changes your location to Media-IXT’s home directory immediately:

cd `cat /etc/traffic_server`

After you make configuration changes

After you make configuration changes, you must either force Media-IXT to re-read its configuration files, or

restart Media-IXT.

In both cases, you use the traffic_line command, with an appropriate option. Change to Media-IXT’s bin

directory to run traffic_line. See the HP Cache Server Appliance Administrator Guide for more

information about traffic_line.

Which action to perform depends on the kind of changes you make.

If you change any of these configuration files

• remap.config

• parent.config

• filter.config

• cache.config

force Media-IXT to re-read them. From Media-IXT’s bin directory, run the command:

./traffic_line -x

If you change other configuration files, change a port setting, or change the setting of a configuration variable,

restart Media-IXT.

6 Configuring Media-IXT: an Overview