Three Variations of postgresql.conf - Mailing list pgsql-general

From Michael Convey
Subject Three Variations of postgresql.conf
Date
Msg-id CACbnAKaSgR99Fsk+XDNdGqpyMWPbC8zXPZNEJq7mjazpdX0nWA@mail.gmail.com
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Responses Re: Three Variations of postgresql.conf
Re: Three Variations of postgresql.conf
List pgsql-general
In Ubuntu 14.10, there are three variations of the postgresql.conf configuration file, as follows: 

/var/lib/postgresql/9.4/main/postgresql.auto.conf
/usr/lib/tmpfiles.d/postgresql.conf
/etc/postgresql/9.4/main/postgresql.conf

What is the difference between these files and which is the correct one to change for modifying the configurations contained therein?

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