/usr/share/dovecot/conf.d/auth-master.conf.ext is in dovecot-core 1:2.0.19-0ubuntu2.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | # Authentication for master users. Included from auth.conf.
# By adding master=yes setting inside a passdb you make the passdb a list
# of "master users", who can log in as anyone else.
# <doc/wiki/Authentication.MasterUsers.txt>
# Example master user passdb using passwd-file. You can use any passdb though.
passdb {
driver = passwd-file
master = yes
args = /etc/dovecot/master-users
# Unless you're using PAM, you probably still want the destination user to
# be looked up from passdb that it really exists. pass=yes does that.
pass = yes
}
|