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环境:
Ubuntu 16.04
postgres : apt-get install postgresql
9.5版本
sudo vim /etc/postgresql/9.5/main/pg_hba.conf
修改下面ipv4登录md5
为trust
.
local all postgres peer
# TYPE DATABASE USER ADDRESS METHOD
# "local" is for Unix domain socket connections only
local all all peer
# IPv4 local connections:
host all all 127.0.0.1/32 md5
# IPv6 local connections:
host all all ::1/128 md5
重启postgressql服务。
~$ systemctl restart postgresq
免密码登录
parallels@parallels-vm:~$ psql -U postgres -h 127.0.0.1
psql (9.5.12)
SSL connection (protocol: TLSv1.2, cipher: ECDHE-RSA-AES256-GCM-SHA384, bits: 256, compression: off)
Type "help" for help.
postgres=#
修改密码并退出
postgres=# alter user postgres with password '123';
ALTER ROLE
postgres=# \q
修改回认证并退出: trust改为md5
sudo vim /etc/postgresql/9.5/main/pg_hba.conf
# IPv4 local connections:
host all all 127.0.0.1/32 trust
重启并登陆:
parallels@parallels-vm:~$ systemctl restart postgresql
parallels@parallels-vm:~$ psql -U postgres -h 127.0.0.1
Password for user postgres:
psql (9.5.12)
SSL connection (protocol: TLSv1.2, cipher: ECDHE-RSA-AES256-GCM-SHA384, bits: 256, compression: off)
Type "help" for help.
(完)