CentOS 7 安装JDK、MySql

系统
database, linux, server

怎样部署CentOS 7服务器环境。

关闭防火墙（通常只用于开发环境）

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# service iptables stop   // 暂时关闭
# chkconfig iptables off  // 永久关闭
# systemctl stop firewalld.service  // 关闭firewall
# systemctl disable firewalld.service  // 禁止firewall开机启动# vim /etc/sysconfig/selinux  // 设置SELINUX=disabled

安装JDK 1.8

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// 下载jdk-8u131-linux-x64.rpm
# yum localinstall jdk-8u131-linux-x64.rpm

# vi /etc/profile
// 添加以下内容
export JAVA_HOME=/usr/java/jdk1.8.0_131
export PATH=$JAVA_HOME/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

# source /etc/profile
# exit
$ source /etc/profile

安装MySql

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# yum install mysql
# yum install mysql-devel
# yum install mariadb-server mariadb

// 启动
# systemctl start mariadb

// 无密码，按回车登录
# mysql -u root -p  

MariaDB [(none)]> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| test               |
+--------------------+
4 rows in set (0.00 sec)
MariaDB [(none)]> use mysql;

MariaDB [mysql]> select host,user from user;
+-----------+------+
| host      | user |
+-----------+------+
| 127.0.0.1 | root |
| ::1       | root |
| centos    |      |
| centos    | root |
| localhost |      |
| localhost | root |
+-----------+------+
6 rows in set (0.00 sec)

// 修改root为任意位置可登录
MariaDB [mysql]> update user set host='%' where user='root' and host='centos';

// 登录授权，密码设置为root
MariaDB [mysql]> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'root' WITH GRANT OPTION;
MariaDB [mysql]> flush privileges;
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