1. Download the installation package uploaded to a good linux:
2. Check whether there is a local mysql existing package
rpm -qa | grep mysql
3. Detection of whether there is a local existing package mariadb
rpm -qa | grep mariadb
4. If so, the unload command with yum
yum -y remove mariadb-libs-5.5.54-2.el7.x86_64
//或者
rpm -e --nodeps mariadb-libs-5.5.54-2.el7.x86_64
5. Create a folder, upload jar package to the / opt / software / mysql
mkdir /opt/module/mysql
6. decompression mysql jar package
tar -xvf mysql-5.7.19-1.el7.x86_64.rpm-bundle.tar -C /opt/module/mysql
7. server installation of mysql, client, common, libs, lib-compat
rpm -ivh --nodeps mysql-community-server-5.7.19-1.el7.x86_64.rpm
rpm -ivh --nodeps mysql-community-client-5.7.19-1.el7.x86_64.rpm
rpm -ivh mysql-community-common-5.7.19-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-5.7.19-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-compat-5.7.19-1.el7.x86_64.rpm
8. Check the mysql service is started
systemctl status mysqld
9. Start mysql service
systemctl start mysqld
10. Check the mysql service is started again
systemctl status mysqld
11. Review the default password generated
cat /var/log/mysqld.log | grep password
12. Log mysql service
mysql -uroot -p’然后粘贴上密码’
13. Modify mysql password rules
| 0 or LOW | length |
| 1 or MEDIUM | Length, capitalization, numbers, special characters |
| 2 or STRONG | Length, capitalization, numbers, special characters, dictionary |
Note: The following modifications are temporarily modify
a check password strength levels, 0 / LOW, 1 / MEDIUM , 2 / STRONG.
set global validate_password_policy=0;
The number of uppercase and lowercase letters number of letters b. Contains at least the password
set global validate_password_mixed_case_count=0;
c. at least a number of digits to be included password
set global validate_password_number_count=3;
d. number of special characters in the password to include at least
set global validate_password_special_char_count=0;
e. minimum password length, parameter defaults to 8,
set global validate_password_length=3;
It has a minimum limit, minimum value: number of lowercase and uppercase letters of at least the number of digits to be included in the password least validate_password_special_char_count special character + (2 * validate_password_mixed_case_count) to include validate_password_number_count +
- change Password:
SET PASSWORD FOR 'root'@'localhost'=PASSWORD('000000');
(These two steps can be skipped)
use mysql;
SHOW VARIABLES LIKE 'validate_password%';
| Variable_name | Value |
|---|---|
| validate_password_dictionary_file | |
| validate_password_length | 3 |
| validate_password_mixed_case_count | 0 |
| validate_password_number_count | 3 |
| validate_password_policy | LOW |
| validate_password_special_char_count | 0 |
15. Modify remote login privileges
As shown above: This is a remote link was successfully configured
all default location% is localhost, which means that only native access
Query the current root login privileges in the user table:
select host,user from mysql.user;
Modify the permissions for all%:
update mysql.user set host = '%' where user = 'root';
Refresh cache:
flush privileges;
