linux下MySQL5.7 rpm安装方式记录，供大家参考，具体内容如下
删除旧包：
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# rpm -qa | grep -i mysql
# rpm -ev mysql-libs-* --nodeps
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安装rpm包：
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# rpm -ivh mysql-community-common-5.7.17-1.el7.x86_64.rpm
# rpm -ivh mysql-community-libs-5.7.17-1.el7.x86_64.rpm
# rpm -ivh mysql-community-client-5.7.17-1.el7.x86_64.rpm
# rpm -ivh mysql-community-server-5.7.17-1.el7.x86_64.rpm
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启动、停止：
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# service mysqld start
# service mysqld stop
# service mysqld status
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初始随机密码：
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# cat /var/log/mysqld.log | more
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修改初始密码及授权远程访问：
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# mysql -uroot -p
mysql> set password='Pwd@123456';
mysql> grant all privileges on *.* to 'root'@'%' identified by 'Pwd@123456';
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密码复杂度属性：
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mysql> set global validate_password_policy=0;
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validate_password_policy有以下取值：（默认是1，即MEDIUM，所以刚开始设置的密码必须符合长度，且必须含有数字，小写或大写字母，特殊字符。）
修改数据目录：
新目录需要给mysql用户授权，mysqld_safe日志文件授权，关闭selinux（没找到相关策略设置的方法）
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# mkdir /data/mysql/data
# mv /var/lib/mysql/* /data/mysql/data/
# mkdir /data/mysql/log
# chown mysql:mysql -R /data/mysql
# touch mysqld_safe.log
# chown mysql:mysql mysqld_safe.log
# vi /etc/my.cnf
/**
[client]
port = 3306
socket = /data/mysql/log/mysql.sock
default-character-set=utf8
[mysql]
no-auto-rehash
socket=/data/mysql/log/mysql.sock
default-character-set=utf8
[mysqld]
port = 3306
socket = /data/mysql/log/mysql.sock
character-set-server=utf8
lower_case_table_names=1
basedir=/usr
datadir=/data/mysql/data
log-error=/data/mysql/log/error.log
pid-file=/data/mysql/log/mysql.pid
init_connect='SET NAMES utf8'
symbolic-links=0
skip-external-locking
key_buffer_size = 16M
max_allowed_packet = 1M
table_open_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
[mysqld_safe]
log-error=/data/mysql/log/mysqld_safe.log
*/
# getenforce
Enforcing
# setenforce 0
# vi /etc/selinux/config
/**
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
#SELINUX=enforcing
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
# targeted - Targeted processes are protected,
# mls - Multi Level Security protection.
SELINUXTYPE=targeted
*/
# service mysqld start
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其他命令：
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# mysqladmin -u root -p password
mysql> select version();
# chkconfig --list
# chkconfig --level 345 mysqld on
# netstat -na | grep 3306
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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。