如何在CentOS 7上安装PostgreSQL 11
时间:2020-02-23 14:30:51 来源:igfitidea点击:
本指南将在CentOS 7上安装PostgreSQL11. PostgreSQL是世界上最先进,功能最强大的开源关系数据库系统,拥有30多年的积极开发经验,在可靠性,功能强大和性能方面赢得了极高的声誉。
PostgreSQL 11于2016-10-18发行,我们可以从Release页面检查其新功能。通过以下步骤从PostgreSQL Yum存储库中在CentOS 7上安装PostgreSQL 11:
更新系统
确保系统软件包是最新的:
sudo yum update -y
由于我们可能具有内核更新,因此建议我们在升级后重新引导系统
sudo reboot
添加PostgreSQL Yum存储库
通过运行以下命令将PostgreSQL Yum Repository添加到CentOS 7系统
sudo yum install https://download.postgresql.org/pub/repos/yum/11/redhat/rhel-7-x86_64/pgdg-centos11-11-2.noarch.rpm
当提示我们确认安装时,请按它们
....................... Dependencies Resolved ====================================================================================================================================================== Package Arch Version Repository Size ====================================================================================================================================================== Installing: pgdg-centos11 noarch 11-2 /pgdg-centos11-11-2.noarch 2.7 k Transaction Summary ====================================================================================================================================================== Install 1 Package Total size: 2.7 k Installed size: 2.7 k Is this ok [y/d/N]: y Downloading packages: Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : pgdg-centos11-11-2.noarch 1/1 Verifying : pgdg-centos11-11-2.noarch 1/1 Installed: pgdg-centos11.noarch 0:11-2 Complete!
安装PostgreSQL服务器和客户端软件包
添加PostgreSQL Yum存储库后,安装PostgreSQL服务器/客户端软件包:
sudo yum -y install postgresql11-server postgresql11
确认已安装的软件包:
$sudo rpm -qi postgresql11-server Name : postgresql11-server Version : 11.0 Release : 1PGDG.rhel7 Architecture: x86_64 Install Date: Sat 03 Nov 2016 04:43:38 PM UTC Group : Applications/Databases Size : 19382677 License : PostgreSQL Signature : DSA/SHA1, Thu 18 Oct 2016 09:06:24 AM UTC, Key ID 1f16d2e1442df0f8 Source RPM : postgresql11-11.0-1PGDG.rhel7.src.rpm Build Date : Tue 16 Oct 2016 02:28:25 AM UTC Build Host : koji-centos7-x86-64-pgbuild Relocations : (not relocatable) Vendor : PostgreSQL Global Development Group URL : https://www.postgresql.org/ Summary : The programs needed to create and run a PostgreSQL server Description : PostgreSQL is an advanced Object-Relational database management system (DBMS). The postgresql11-server package contains the programs needed to create and run a PostgreSQL server, which will in turn allow you to create and maintain PostgreSQL databases.
初始化数据库并启用自动启动
现在已经安装了数据库软件包,通过运行以下命令来初始化数据库
$sudo /usr/pgsql-11/bin/postgresql-11-setup initdb Initializing database ... OK
然后启动并启用服务以在启动时启动
sudo systemctl start postgresql-11 sudo systemctl enable postgresql-11
PostgreSQL 11的配置文件是/var/lib/pgsql/11/data/postgresql.conf
如果我们有正在运行的防火墙服务,并且远程客户端应连接到数据库服务器,请允许PostgreSQLservice。
sudo firewall-cmd --add-service=postgresql --permanent sudo firewall-cmd --reload
对PostgreSQL启用远程访问
编辑文件/var/lib/pgsql/11/data/postgresql.conf
并将"监听地址"设置为服务器IP地址,或者将*设置为所有接口。
listen_addresses = '192.168.18.9'
还设置PostgreSQL接受远程连接
$sudo vim /var/lib/pgsql/11/data/pg_hba.conf # Accept from anywhere host all all 0.0.0.0/0 md5 # Accept from trusted subnet host all all 192.168.18.0/24 md5
重新启动服务
sudo systemctl restart postgresql-11
设置PostgreSQL管理员用户密码
设置PostgreSQL管理员用户
$sudo su - postgres bash-4.2$psql -c "alter user postgres with password 'StrongPassword'" ALTER ROLE -bash-4.2$
创建测试用户和数据库
-bash-4.2$createuser test_user -bash-4.2$createdb test_db -O test_user -bash-4.2$grant all privileges on database test_db to test_user;
以" test_user"用户身份登录,尝试在数据库上创建表。
$psql -U test_user -h localhost -d test_db
在CentOS 7/Fedora 29/Fedora 28上安装pgAdmin 4
在CentOS 7/Fedora 29/Fedora 28上安装pgAdmin 4,以通过Web界面管理PostgreSQL。