You can enable log shipping to external services like papertrail, logdna or Loggly by entering a logging URL in the External Logging section of the Advanced tab in the settings of your app. Your logging address should start with udp://
You can read more on setting up external logging in our blog
Loggly Customer Token as tag
When sending your logs to Loggly, you need to provide a customer token and private enterprise number (PEN) as a syslog header. You can use the tag field for that. The format is [yourtoken@41058].
Along with the address udp://logs-01.loggly.com
Note: The log target needs to be an external (not localhost etc.) address.
Tags: external logging log shipping logs papertrail logdna loggly