curl localhost:5432
# 访问成功提示
curl: (52) Empty reply from server

curl 127.0.0.1:5432
# 访问不成功提示
curl: (7) Failed to connect to 172.17.201.227 port 5432: Connection refused

host all  all  192.168.1.0/24  trust

# 192.168.1.111 为postgresql本机内网地址
listen_addresses='192.168.1.111'

sudo /etc/init.d/postgresql restart

curl 192.168.1.111:5432
# 访问成功提示
curl: (52) Empty reply from server

curl 192.168.1.111:5432
# 访问成功提示
curl: (52) Empty reply from server

$ sudo -u postgres -i
$ psql

postgres=# CREATE USER myusername WITH PASSWORD 'mypassword' CREATEDB;

postgres=# CREATE DATABASE mydb;
postgres=# GRANT ALL PRIVILEGES ON DATABASE mydb to myusername;
postgres=# \q

$ psql -d mydb;
mydb=# \dt

listen_addresses = '*'

host  all     all     0.0.0.0/0   md5