parent.config(5) on Linux
The text d1f4fe369560, as Debian 10 (Buster) shipped it.
Traffic Server parent cache configuration file The parent.config file identifies the parent proxies used in an cache hierarchy. Use this file to perform the following configuration: Traffic Server uses the parent.config file only when the parent caching option is enabled (refer to configuring-traffic-server-to-use-a-parent-cache). After you modify the parent.config file, run the traffic_ctl config reload command to apply your changes.