max 安装 mysql5.x_MySQL5.7安装
.yum安裝,先要搞到源
wget http://repo.mysql.com/mysql57-community-release-el7-9.noarch.rpm
sudo rpm -ivh mysql57-community-release-el7-9.noarch.rpm
2.更新yum軟件包
yum check-update
3.更新系統(tǒng)
yum update
4.安裝mysql
yum install mysql mysql-server
*********************接下來(lái)是漫長(zhǎng)的等待。如果中途關(guān)機(jī),或者下載掛了,請(qǐng)執(zhí)行卸載步驟后,再來(lái)一次。完成后記住要給root上密碼***********
systemctl start mysqld
mysql -u root
mysql> update mysql.user set authentication_string=password('admin') where user='root' and Host ='localhost';
mysql> flush privileges;
mysql> quit;
5.啟動(dòng)與開(kāi)放遠(yuǎn)程訪(fǎng)問(wèn)
systemctl start mysqld
mysql -u root -p
6.授權(quán)遠(yuǎn)程訪(fǎng)問(wèn)
use mysql;
grant all privileges ?on *.* to root@'%' identified by "admin";
grant all privileges ?on *.* to piwik@'%' identified by "ph20190420";
FLUSH PRIVILEGES;
create user user@'%' identified by 'admin'
7.查看初始密碼
grep 'temporary password' ?/var/log/mysqld.log
1.root登陸mysql
8.密碼強(qiáng)度低時(shí)報(bào)錯(cuò)問(wèn)題解決
mysql> set global validate_password_policy=0;
mysql> set global validate_password_mixed_case_count=0;
mysql> set global validate_password_number_count=3;
mysql> set global validate_password_special_char_count=0;
mysql> set global validate_password_length=3;
alter user root@localhost identified by 'admin';
9.數(shù)據(jù)庫(kù)啟動(dòng),停止,重啟
systemctl start mysqld
systemctl stop mysqld
service mysqld restart
10.修改max_allowed_packet
用VI打開(kāi)/etc/my.cnf,增加下面一行,這句話(huà)是把上傳文件大小改到64M:
max_allowed_packet = 64M ???piwik建議
查看當(dāng)前大小
show variables like '%max_allowed_packet%';
總結(jié)
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