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java环境
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安装java
- yum -y install java-1.8.0-openjdk-devel.x86_64
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环境变量
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vim /etc/profile
JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.262.b10- 0.el7_8.x86_64/ JRE_HOME=$JAVA_HOME/jre PATH=$PATH:$JAVA_HOME/bin CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
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更新环境变量
- source /etc/profile
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java -version
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结果
java环境java配置成功
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Mysql-yum源下载安装
- wget http://repo.mysql.com/mysql57-community-release-el7-8.noarch.rpm
- rpm -ivh mysql57-community-release-el7-8.noarch.rpm
- yum install mysql-server
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启动、关闭、查看状态
- systemctl start mysqld
- systemctl stop mysqld
- systemctl status mysqld
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查看mysql数据库默认密码
- grep “password” /var/log/mysqld.log
- kXMufzN4f(8V
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授权远程访问
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mysql -uroot -p
SET PASSWORD = PASSWORD('Kuick123456..'); grant all privileges on *.* to root@"%" identified by "Kuick123456.." with grant option; flush privileges; -
查看账户远程权限配置
use mysql; select host,user from user;
+结果
云服务器控制台记得放开3306端口
mysql安装
mysql启动关闭查看状态
mysql密码查看,密码我改过了,这个密码是无效的



