host unv
133.65.96.250 255.255.255.255 password passwd
The above line allows access from 133.65.96.250 using the passwords listed in $PGDATA/passwd. The format of the password file follows those of /etc/passwd and /etc/shadow. The first field is the user name, and the second field is the encrypted password. The rest is completely ignored. Thus the following three sample lines specify the same user and password pair:
pg_guest:/nB7.w5Auq.BY:10031::::::
pg_guest:/nB7.w5Auq.BY:93001:930::/home/guest:/bin/tcsh
pg_guest:/nB7.w5Auq.BY:93001
Supply the password file to the pg_passwd command. In the case described above, after cd'ing to $PGDATA, the following command execution specify the new password for pg_guest:
% pg_passwd passwd
Username: pg_guest
Password:
Re-enter password:
where the Password: and Re-enter password: prompts require the same password input which are not displayed on the terminal. The original password file is renamed to passwd.bk.
Psql authentication uses the -u option. The following lines show the sample usage of the option:
% psql -h hyalos -u unv
Username: pg_guest
Password:
Welcome to the
POSTGRESQL interactive sql monitor:
Please read the file COPYRIGHT
for copyright terms of POSTGRESQL
type \? for help on slash commands
type \q to quit
type \g or terminate with semicolon to execute query
You are currently connected to the database: unv
unv=>
Perl5 authentication uses the new style of the Pg.pm like this:
$conn = Pg::connectdb("host=hyalos
dbname=unv
user=pg_guest password=xxxxxxx");
For more details, refer to src/pgsql_perl5/Pg.pm.
Pg{tcl,tk}sh authentication uses the pg_connect command with the -conninfo option thus:
% set conn
[pg_connect -conninfo \
"host=hyalos dbname=unv \
user=pg_guest
password=xxxxxxx "]
Use can list all of the keys for the option by executing the following command:
% puts [ pg_conndefaults]