Centos安装MySQL详细步骤(亲妈级教程)
{ubuntu安装mysql,其他linux安装MySQL同理}
0.下载
官网下载:MySQL
百度云下载:
链接:/s/1lgAmvcc5eBcFPQwKpf8BuQ?pwd=6vkg
提取码:6vkg
–来自百度网盘超级会员V4的分享
1. 上传mysql软件包
scp ./mysql-5.7.38-linux-glibc2.12-x86_64.tar root@192.168.10.129:/usr/local/mysql
输入密码
2 .解压包
tar -zxvf mysql-5.7.38-linux-glibc2.12-x86_64.tar
3 .删除tar包,将mysql包重命名
rm -rf mysql-5.7.38-linux-glibc2.12-x86_64.tarmv /usr/local/mysql/mysql-5.7.38/* /usr/local/mysql
4.进去mysql包,创建目录
mkdir data
5.安装numactl依赖
yum -y install numactl
6.初始化mysql,产生一个随机密码
./bin/mysqld --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --initialize
密码查看vim /var/log/mysqld.log
在root@localhost:
后面的就是初始密码
7.修改配置文件
vim /etc/f
写入以下信息 -->
#配置文件内容如下:
[mysqld]port=3306datadir=/usr/local/mysql/datasocket=/usr/local/mysql/mysql.sockuser=rootmax_connections=151#Disabling symbolic-links is recommended to prevent assorted security riskssymbolic-links=0#设置忽略大小写lower_case_table_names = 1#指定编码character-set-server=utf8collation-server=utf8_general_ci#开启ip绑定bind-address = 0.0.0.0[mysqld_safe]log-error=/var/log/mysqld.logpid-file=/var/run/mysqld/mysqld.pid#指定客户端连接mysql时的socket通信文件路径[client]socket=/usr/local/mysql/mysql.sockdefault-character-set=utf8
8.将mysql进程放入系统进程中
cp support-files/mysql.server /etc/init.d/mysqld
9.启动mysql服务
service mysqld start
10.配置mysql环境变量
#编辑/etc/profile
vi /etc/profile
#尾部追加
export PATH=$PATH:/usr/local/mysql/bin
#使环境变量生效
source /etc/profile
11.设置新密码
#使用随机密码登录mysql
mysql -u root -p
#为root用户设置新密码:
alter user 'root'@'localhost' identified by '新密码';
12.设置允许远程连接数据库
#选择mysql数据库
use mysql;
#更新用户登录地址为任何值
update user set user.Host='%' where user.User='root';
#刷新权限
flush privileges;
13.开放3306端口
iptables -I INPUT -p tcp --dport 3306 -j ACCEPT