CentOS7.6离线安装MySql5.7

时间:2022-12-03 16:45:06

准备好mysql的离线安装文件:

MySql官网下载mysql-5.7.25-1.el7.x86_64.rpm-bundle,并复制到/usr/mysql文件夹中。

删除CentOS自带的MariaDB:

rpm -qa|grep mariadb

rpm -e --nodeps mariadb-libs

rpm命令安装:

cd /usr/mysql/ mysql-5.7.25-1.el7.x86_64.rpm-bundle

rpm -ivh mysql-community-common-5.7.21-1.el7.x86_64.rpm

rpm -ivh mysql-community-libs-5.7.21-1.el7.x86_64.rpm

rpm -ivh mysql-community-devel-5.7.21-1.el7.x86_64.rpm

rpm -ivh mysql-community-libs-compat-5.7.21-1.el7.x86_64.rpm

rpm -ivh mysql-community-client-5.7.21-1.el7.x86_64.rpm

rpm -ivh mysql-community-server-5.7.21-1.el7.x86_64.rpm

启动MySql服务:

查看MySql运行状态:service mysqld status

启动MySql:systemctl start mysqld

查看root随机密码:

MySQL5.7会在安装后为root用户生成一个随机密码,而不是像以往版本的空密码。可以安全模式修改root登录密码或者用随机密码登录修改密码。下面用随机密码方式,MySQL为root用户生成的随机密码通过mysqld.log文件可以查找到:

grep 'temporary password' /var/log/mysqld.log

修改root登录密码:

MySQL的密码策略比较复杂,过于简单的密码会被拒绝

mysql -u root -p

mysql> Enter password: (输入刚才查询到的随机密码)

mysql> SET PASSWORD FOR 'root'@'localhost'= "123456";

mysql> exit

设置root可以远程登录:

mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;

mysql>FLUSH PRIVILEGES;

mysql>exit;

开启防火墙mysql 3306端口的外部访问:

firewall-cmd --zone=public --add-port=3306/tcp --permanent

firewall-cmd --reload

设置MySql忽略大小写:

用root登录,打开并修改 /etc/my.cnf;在[mysqld]节点下,加入一行: lower_case_table_names=1。

重启MySql服务:systemctl restart mysqld