pg_hba.conf

local   all         all                               trust
# IPv4 local connections:
host    all         all         127.0.0.1/32          trust
# IPv6 local connections:
host    all         all         ::1/128               trust



ident.conf

localmap      rexxis            musicbrainz_user
localmap      root              musicbrainz_user
localmap      rexxis            postgres
localmap      postgres          postgres
localmap      root              postgres