[postgres@pg01 ~]$ psql -Upostgres -dpostgres postgres=# alter user postgres with password 'postgres'; ALTER ROLE 登錄測試: [postgres@pg02 ~]$ psql -h 192.168.12.14 -p 5432 -U postgres -d postgres Password for user postgres:(輸入剛剛修改的密碼postgres) psql.bin (10.14) Type "help" for help. postgres=#