CentOS Yum tool installation, simple and convenient, official source list, RPM LIST .
add RPM
yum install https://download.postgresql.org/pub/repos/yum/9.6/redhat/rhel-7-x86_64/pgdg-centos96-9.6-3.noarch.rpm
Install PostgreSQL 9.6
postgresql96-server database core server
postgresql96-contrib additional third-party extensions
postgresql96-devel C language development Header header files and libraries
yum install postgresql96-server postgresql96-contrib postgresql96-devel
Verify that the installation was successful
rpm -aq| grep postgres
The default Postgresql database path is /var/lib/pgsql/9.6/data, you can create a new directory, if it is /mnt/vdb1
cd /mnt
sudo mkdir vdb1
sudo chown -R postgres:postgres vdb1
sudo chmod 700 vdb1
vi /usr/lib/systemd/system/postgresql-9.6.service
Environment=PGDATA=/mnt/vdb1/ Change to your own new data path
Initialize the database
/usr/pgsql-9.6/bin/postgresql96-setup initdb
Start the service
service postgresql-9.6start 或者 systemctl start postgresql-9.6.service
boot
sudo chkconfig postgresql-9.6 on 或者 systemctl enable postgresql-9.6.service
change Password
with postgres
psql
ALTER USER postgres WITH PASSWORD 'password'; -- must end with a semicolon, ALTER ROLE will appear after successful execution
\q
su root
Enable remote access
vi /var/lib/pgsql/9.6/data/postgresql.conf someone vi /mnt/vdb1/postgresql.conf
修改#listen_addresses = 'localhost' 为 listen_addresses='*'
Of course, the '*' here can also be changed to any server IP you want to open
Trust remote connections
vi /var/lib/pgsql/9.6/data/pg_hba.conf someone vi /mnt/vdb1/pg_hba.conf
Modify the following content to trust the specified server connection
# IPv4 local connections:
host all all 127.0.0.1/32 md5
host all all 10.211.55.6/32 (server IP that needs to be connected) md5
restart the service
service postgresql-9.6 restart 或者 systemctl restart postgresql-9.6.service
Open the firewall
The PostgreSQL service is built into the CentOS firewall. The location of the configuration file is /usr/lib/firewalld/services/postgresql.xml. We only need to open the PostgreSQL service as a service.
systemctl enable firewalld enable firewall at boot
systemctl start firewalld to open the firewall
firewall-cmd --add-service=postgresql --permanent open postgresql service
firewall-cmd --zone=public --add-port=5432/tcp --permanent or you can add the port directly
firewall-cmd --reload reload firewall
firewall-cmd --list-ports View occupied ports
Simple to use:
psql -U postgres postgres connect to the database
Description: -h means host (Host), -p means port (Port), -U means user (User)
Show all databases: \l
Uninstall PostgreSQL
yum erase postgresql96
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