linux下MySQL5.7 rpm安裝方式記錄，供大家參考，具體內容如下
刪除舊包：
# rpm -qa | grep -i mysql
# rpm -ev mysql-libs-* --nodeps
安裝rpm包：
# 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
啟動、停止：
# service mysqld start
# service mysqld stop
# service mysqld status
初始隨機密碼：
# cat /var/log/mysqld.log | more
修改初始密碼及授權遠程訪問：
# mysql -uroot -p
mysql> set password='Pwd@123456';
mysql> grant all privileges on *.* to 'root'@'%' identified by 'Pwd@123456';
密碼復雜度屬性：
mysql> set global validate_password_policy=0;
validate_password_policy有以下取值：（默認是1，即MEDIUM，所以剛開始設置的密碼必須符合長度，且必須含有數字，小寫或大寫字母，特殊字符。）
修改數據目錄：
新目錄需要給mysql用戶授權，mysqld_safe日志文件授權，關閉selinux（沒找到相關策略設置的方法）
# 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
其他命令：
# mysqladmin -u root -p password
mysql> select version();
# chkconfig --list
# chkconfig --level 345 mysqld on
# netstat -na | grep 3306
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持腳本之家。
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