PostgreSQL登陆方式(本地和远程)的实现

[postgres@hcss-ecs-c4c8 ~]$ pglg
psql (15.1)
Type "help" for help.

postgres=# l
                                                 List of databases
   Name    |  Owner   | Encoding |   Collate   |    Ctype    | ICU Locale | Locale Provider |   Access privileges  
 
-----------+----------+----------+-------------+-------------+------------+-----------------+----------------------
-
 postgres  | postgres | UTF8     | en_US.UTF-8 | en_US.UTF-8 |            | libc            | 
 template0 | postgres | UTF8     | en_US.UTF-8 | en_US.UTF-8 |            | libc            | =c/postgres          
+
           |          |          |             |             |            |                 | postgres=CTc/postgres
 template1 | postgres | UTF8     | en_US.UTF-8 | en_US.UTF-8 |            | libc            | =c/postgres          
+
           |          |          |             |             |            |                 | postgres=CTc/postgres
 text_db   | osdba    | UTF8     | en_US.UTF-8 | en_US.UTF-8 |            | libc            | 
(4 rows)

psql -d postgres -p 5432

postgres=# alter user postgres with password 'pg123';
ALTER ROLE

vi /home/postgres/pgdata/pg_hba.conf

vi  /home/postgres/pgdata/postgresql.conf

create user test with password ‘test123';
create database testdb with encoding=‘utf8' owner=test;
grant all privileges on database testdb to test;