CentOS 7.3 官网离线安装mysql 5.5

安装环境

- CentOs 7.3 

安装包下载

https://pan.baidu.com/s/1S6YL8ZaTI6tCJx6pdDAfUQ

运行命令

1.下载文件并上传

2.进入上传文件根目录

yum localinstall mysql57-community-release-el7-8.noarch.rpm

3:检查是否安装成功

 yum repolist enabled | grep "mysql.*-community.*"

显示正常如下:

[root@izwz9evdgm0j8lrd5ttie8z package]# yum repolist enabled | grep "mysql.*-community.*"
mysql-connectors-community/x86_64 MySQL Connectors Community                  51
mysql-tools-community/x86_64      MySQL Tools Community                       63
mysql57-community/x86_64          MySQL 5.7 Community Server                 267

4:选择安装版本

vim /etc/yum.repos.d/mysql-community.repo 

#### Enable to use MySQL 5.5 修改enabled 1(表示安装) 或 0(不安装)
[mysql55-community]
name=MySQL 5.5 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.5-community/el/7/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

# Enable to use MySQL 5.6
[mysql56-community]
name=MySQL 5.6 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.6-community/el/7/$basearch/
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

[mysql57-community]
name=MySQL 5.7 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/7/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

[mysql-tools-preview]
name=MySQL Tools Preview
baseurl=http://repo.mysql.com/yum/mysql-tools-preview/el/7/$basearch/
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

5:启动mysql服务

systemctl start mysqld

6:开机启动

systemctl enable mysqld
systemctl daemon-reload

7:修改root 本地登录密码

1.grep 'temporary password' /var/log/mysqld.log 获取默认密码
2.set password for 'root'@'localhost'=password('chenzhanmei');
3.flush privileges;

注意: 如果密码忘记
vi /etc/my.conf 
在[mysqld] 下面添加 skip-grant-tables 

8:添加远程登录用户

GRANT ALL PRIVILEGES ON *.* TO 'zhanmei'@'%' IDENTIFIED BY 'Zhanmei1!' WITH GRANT OPTION;

9:配置默认编码为UTF8

修改/etc/my.cnf配置文件，在[mysqld]下添加编码配置，如下所示：

[mysqld]
character_set_server=utf8
init_connect='SET NAMES utf8'

10:默认配置文件路径：

配置文件：/etc/my.cnf
日志文件：/var/log//var/log/mysqld.log
服务启动脚本：/usr/lib/systemd/system/mysqld.service
socket文件：/var/run/mysqld/mysqld.pid

11:数据库优化 自行百度

版权声明：本文为博主原创文章，欢迎转载。转载时请注明作者及出处。