My reference - PostgreSQL

centos 7

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

sudo yum install postgresql12-server postgresql12

# postgresql-12-setup initdb

# systemctl enable --now postgresql-12.service 

su - posgres

psql -c "alter user postgres with password 'password'"

[root@vm11 ~]# vi /var/lib/pgsql/12/data/pg_hba.conf^C

host all all 0.0.0.0/0 md5

host all all 192.168.18.0/24 md5

[root@vm11 ~]# vi "/var/lib/pgsql/12/data/postgresql.conf"^C

listen_addresses = '192.168.10.10' 

or

listen_addresses = "*"

sudo rpm -i https://ftp.postgresql.org/pub/pgadmin/pgadmin4/yum/pgadmin4-redhat-repo-2-1.noarch.rpm

yum install pgadmin4

/usr/pgadmin4/bin/setup-web.sh

systemctl enable --now httpd

http://192.168.82.170/pgadmin4

su - postgres

psql

create database lokus;

\c lokus;

select version();