linux部署mysql
2021/11/6 19:12:22
本文主要是介绍linux部署mysql,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
一 安装
1、进入存放安装包位置文件夹
cd /usr/src/
2、查看系统中是否已安装MySql服务,有两种方式
rpm -qa | grep mysql yum list installed | grep mysql
3、如果已存在,则删除MySql及其依赖项
yum -y remove mysql-libs.x86_64
4、下载 mysql57-community-release-el7-8.noarch.rpm 的 YUM 源
wget http://repo.mysql.com/mysql57-community-release-el7-8.noarch.rpm
5、安装 mysql57-community-release-el7-8.noarch.rpm
rpm -ivh mysql57-community-release-el7-8.noarch.rpm
6、安装 MySql,一路 Y 到底
yum install mysql-server
7、启动mysql 获取随机密码
安装完毕后,运行mysql,然后在 /var/log/mysqld.log 文件中会自动生成一个随机的密码,我们需要先取得这个随机密码,以用于登录 MySQL 服务端
service mysqld start grep "password" /var/log/mysqld.log
将会返回如下内容,末尾字符串就是密码,把它保存下来
A temporary password is generated for root@localhost: 2ru>oFqj+fHw
8、登录到 MySQL 服务端并更新用户 root 的密码,并给与ip登录权限。
mysql -u root -p 2ru>oFqj+fHw
登陆后更改密码(密码使用了强度验证,所以需要有一定强度的密码)
ALTER USER 'root'@'localhost' identified by '(新密码)'; flush privileges;
设置用户 root 可以在任意 IP 下被访问
grant all privileges on *.* to root@"%" identified by '(新密码)';
设置用户 root 可以在本地被访问
grant all privileges on *.* to root@"localhost" identified by '(新密码)';
然后刷新权限后生效
flush privileges;
这样环境就搭建完成了。
注意:如果用远程工具还是连接不上,试试用 iptables -F 命令来清除防火墙中链中的规则
9.修改配置表
打开配置表,文件路径:
vim /etc/my.cnf
设置 MySQL 的字符集为 UTF-8
去除大小写敏感 my.cnf(/etc/my.cnf)的[mysqld]区段下增加: lower_case_table_names=1
# For advice on how to change settings please see # http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html [client] default-character-set=utf8 [mysqld] default-storage-engine=INNODB character-set-server=utf8 collation-server=utf8_general_ci # # Remove leading # and set to the amount of RAM for the most important data # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. # innodb_buffer_pool_size = 128M # # Remove leading # to turn on a very important data integrity option: logging # changes to the binary log between backups. # log_bin # # Remove leading # to set options mainly useful for reporting servers. # The server defaults are faster for transactions and fast SELECTs. # Adjust sizes as needed, experiment to find the optimal values. # join_buffer_size = 128M # sort_buffer_size = 2M # read_rnd_buffer_size = 2M datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid
重启MySql后登陆,查看字符集
重启命令 service mysqld restart 查看字符集命令 show variables like '%character%';
10.MySQL 采用的 TCP/IP 协议传输数据,默认端口号为 3306,我们可以通过如下命令查看
netstat -anp | grep 3306
--查看MySql数据库物理文件存放位置
mysql> show global variables like "%datadir%";
mysql服务常用的几个命令
service mysqld start; 启动 service mysqld stop; 停止 service mysqld restart; 重启 service mysqld status; 查看状态 systemctl start mysqld service mysqld stop service mysqld restart systemctl status mysqld
二 开启端口
阿里云 腾讯云 需要在安全组添加规则
这篇关于linux部署mysql的文章就介绍到这儿,希望我们推荐的文章对大家有所帮助,也希望大家多多支持为之网!
- 2024-12-25如何部署MySQL集群资料:新手入门教程
- 2024-12-24MySQL集群部署资料:新手入门教程
- 2024-12-24MySQL集群资料详解:新手入门教程
- 2024-12-24MySQL集群部署入门教程
- 2024-12-24部署MySQL集群学习:新手入门教程
- 2024-12-24部署MySQL集群入门:一步一步搭建指南
- 2024-12-07MySQL读写分离入门:轻松掌握数据库读写分离技术
- 2024-12-07MySQL读写分离入门教程
- 2024-12-07MySQL分库分表入门详解
- 2024-12-07MySQL分库分表入门指南