在服务器上安装 postgresql 数据库并在另一个 pc 客户端上运行 gui 应用程序

Question

I have created 2 GUI applications using pyqt5 and postgresql database

one of them a read a write application and the 2 ND read only

I want to install the database on one computer that contain the application read only and in another computer the application read a write

Note that the 2 PC are connected using DHCP (Dynamic Host Configuration Protocol) server the code I use to connect my application to the database is like this

connection = psycopg2.connect(user="postgres",
                               password="password",
                               host="localhost", 
                               port="5432",
                               database="SIFAX")

How I can configure the postgres database and my code, making it possible

Answer 1

find a solution

first in the file

pg_hba.conf

in C:\\Program Files\\PostgreSQL\\12\\data add the ip adress of the client pc like this

# TYPE  DATABASE        USER            ADDRESS                 METHOD

# IPv4 local connections:
host    all             all             127.0.0.1/32            md5
host    all             all             x.x.x.x/32              md5#ip of the first client 
host    all             all             x.x.x.x/32              md5#ip of the 2nd client 

and in the code of gui used in the server it will be like this

connection = psycopg2.connect(user="postgres",
                               password="password",
                               host="localhost", 
                               port="5432",
                               database="database")

and the code of the gui used in the client pc it will be like this

connection = psycopg2.connect(user="postgres",
                               password="password",
                               host="ip adress of the server", 
                               port="5432",
                               database="database")