linux 安装mysql相关和openjdk

新装的centos 6.9虚拟机

修改yum 服务器源

cd /etc/yum.repos.d/

rename repo repo.bak_$(date +%F) *

阿里的yum库  https://opsx.alibaba.com/mirror  打开点帮助

curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo

yum install -y tree lrzsz ntpdate wget vim

chkconfig --list | grep "3:on"

rpm -Uvh http://repo.mysql.com/yum/mysql-5.6-community/el/6/x86_64/mysql-community-release-el6-5.noarch.rpm

mysql_install_db

 mysql_secure_installation

vim /etc/my.cnf

 cd /var/lib/

chown -R mysql:mysql mysql

> /var/log/mysqld.log

tail  -f /var/log/mysqld.log

 /etc/init.d/iptables status

chkconfig --list | grep "3:on"

curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo

rpm -Uvh http://repo.mysql.com/yum/mysql-5.6-community/el/6/x86_64/mysql-community-release-el6-5.noarch.rpm

yum install -y mysql mysql-server

openjdk

第一步：执行 rpm -qa|grep jdk 命令查看当前的jdk情况。

第二步：执行 yum -y remove java java-1.7.0-openjdk* 卸载openjdk，在执行这个命令的过程中，会卸载删除一些和openJDK有依赖关系的软件，不用担心，无影响。

https://opsx.alibaba.com/mirror 查找要安装的版本

yum list | grep jdk  查看所有包

安装devel

yum install -y java-1.8.0-openjdk-devel