1.下載 4個rpm包
mysql-community-client-5.7.26-1.el7.x86_64.rpm
mysql-community-common-5.7.26-1.el7.x86_64.rpm
mysql-community-libs-5.7.26-1.el7.x86_64.rpm
mysql-community-server-5.7.26-1.el7.x86_64.rpm
想要用迅雷進行下載得先找到對應的rpm下載路徑
首先瀏覽器打開mysql官網：https://dev.mysql.com/downloads/mysql/5.7.html#downloads
在官網找到對應的版本：
右鍵復制鏈接地址，粘貼到迅雷即可下載：
如下給出了4個myql5.7 的rpm包的路徑，直接打開迅雷填入下載路徑就可以進行下載，其他版本可以用同樣方法：
https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-community-server-5.7.26-1.el7.x86_64.rpm
https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-community-client-5.7.26-1.el7.x86_64.rpm
https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-community-common-5.7.26-1.el7.x86_64.rpm
https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-community-libs-5.7.26-1.el7.x86_64.rpm
2.上傳rpm到linux
我這里用的xshell，沒有安裝xftp
在sftp輸入 put命令，選擇下載好的rpm包即可上傳：
3.安裝
已經上傳好的rpm如下：
通過 rpm -ivh mysql-community-****-5.7.26-1.el7.x86_64.rpm --force --nodeps 進行安裝，***表示common 、libs、client、server
安裝順序 common-->libs-->client-->server
如果沒有--force --nodeps會出現告警：
warning: mysql-community-common-5.7.26-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
4.配置
啟動mysql服務 ：
[root@localhost ~]# service mysqld start
Redirecting to /bin/systemctl start mysqld.service
[root@localhost ~]#
找到初始密碼：
[root@localhost ~]# cat /var/log/mysqld.log |grep password
2019-06-02T08:39:38.448115Z 1 [Note] A temporary password is generated for root@localhost: dLZMCRv?s2q)
2019-06-02T08:40:41.870130Z 2 [Note] Access denied for user 'root'@'localhost' (using password: NO)
登陸mysql：
[root@localhost ~]# mysql -u root -p
密碼為上面找到的dLZMCRv?s2q)
修改root密碼：
mysql> alter user 'root'@'localhost' identified by 'newpasswd';
允許遠程連接：
mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'newpasswd' WITH GRANT OPTION;
mysql> FLUSH PEIVLEGES;
關閉防火牆：
[root@localhost ~]# systemctl stop firewalld.service