Install PostgreSQL on a Ubuntu Server and Connect since another host

 sudo apt update -y  
 sudo apt install -y postgresql postgresql-contrib postgresql-client  
 sudo dpkg --status postgresql  
 sudo systemctl start postgresql.service  
 sudo systemctl status postgresql.service  
 sudo -u postgres psql  
 \password  

Escribir el password

\q

sudo nano /etc/postgresql/[REPLACE_HERE_VERSION]/main/pg_hba.conf

Replace
local   all             postgres                                peer
local   all             postgres                                md5
add
host    all             all             192.168.1.0/24          md5

sudo nano /etc/postgresql/[REPLACE_HERE_VERSION]/main/postgresql.conf

listen_addresses = '*'

sudo systemctl restart postgresql

sudo systemctl enable postgresql