You may be able to get away without this if localhost is the only host
involved- I'm pretty sure the default pg_hba.conf file already has localhost
set up in it. (I'm sure it does in the Debian package, and would guess this
is true of the others.)
> You may also have to modify pg_hba.conf (in addition to postgresql.conf).
> See the comments in the file for details, but you need a line something
> like:
>
> host all 172.16.0.0 255.255.0.0 password
>
> where 172.16.0.0 is replaced by the appropriate network and 255.255.0.0 by
> the appropriate netmask.
-Nick
