Centos7安装postgre14

sudo yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm

sudo yum install -y postgresql14-server

sudo /usr/pgsql-14/bin/postgresql-14-setup initdb 
sudo systemctl enable postgresql-14 
sudo systemctl start postgresql-14

su - postgres
psql

q
exit

ALTER USER postgres WITH PASSWORD 'postgres';

postgresql 默认是不支持远程访问，需要修改2个配置文件

vim /var/lib/pgsql/14/data/postgresql.conf

修改如此

LISTEN_ADDRESSES = '*'		# WHAT IP ADDRESS(ES) TO LISTEN ON;
					#COMMA-SEPARATED LIST OF ADDRESSES;
					#DEFAULTS TO 'LOCALHOST'; USE '*' FOR ALL
					#(CHANGE REQUIRES RESTART)
PORT = 5432				# (CHANGE REQUIRES RESTART)
max_connections = 100			# (change requires restart)

vim /var/lib/pgsql/14/data/pg_hba.conf

全部修改为trust不用再认证输入密码

# "local" is for Unix domain socket connections only
local   all             all                                     trust
# IPv4 local connections:
host    all             all             127.0.0.1/32            trust
# IPv6 local connections:
host    all             all             ::1/128                 trust
# Allow replication connections from localhost, by a user with the
# replication privilege.
local   replication     all                                     trust
host    replication     all             127.0.0.1/32            trust
host    replication     all             ::1/128                 trust
host    all             all             0.0.0.0/0               trust

l

create USER xxx WITH PASSWORD '123456';

create DATAbase xxx;

GRANT ALL PRIVILEGES ON DATAbase xxx TO xxxx;

#先退出
q
#再登录数据库,下边为大写U
psql -d xxx -U xxx;