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sudo yum install mysql-community-server
sudo systemctl enable mysqld
sudo systemctl start mysqld
sudo systemctl status mysqld
sudo grep 'temporary password' /var/log/mysqld.log
sudo mysql_secure_installation
mysql -u root -p
Test mysql****
mysqladmin -u root -p version
//======================
/var/lib/mysql
/etc/my.cnf
//===========================
CREATE DATABASE new_database;
use new_database;
CREATE TABLE contacts (
id INT PRIMARY KEY,
name VARCHAR(30),
email VARCHAR(30)
);
///=============reset root password======
1. Stop mysql:
systemctl stop mysqld
2. Set the mySQL environment option
systemctl set-environment MYSQLD_OPTS="--skip-grant-tables"
3. Start mysql usig the options you just set
systemctl start mysqld
4. Login as root
mysql -u root
mysql> FLUSH PRIVILEGES;
5. Update the root user password with these mysql commands
mysql>ALTER USER 'root'@'localhost' IDENTIFIED BY 'new_password';
For MySQL 5.7.5 and older as well as MariaDB 10.1.20 and older, use:
Mysql>SET PASSWORD FOR 'root'@'localhost' = PASSWORD('new_password');
mysql> quit
*** Edit ***
As mentioned my shokulei in the comments, for 5.7.6 and later, you should use
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass';
Or you'll get a warning
6. Stop mysql
systemctl stop mysqld
7. Unset the mySQL envitroment option so it starts normally next time
systemctl unset-environment MYSQLD_OPTS
8. Start mysql normally:
systemctl start mysqld
Try to login using your new password:
7. mysql -u root -p
mysql> SHOW GLOBAL VARIABLES LIKE 'PORT';
=======>>>My.cnf<<<=====
[mysqld]
max_connections=500
max_allowed_packet=1024M
innodb_log_file_size=512M
innodb_lock_wait_timeout=300
query_cache_type=1
query_cache_size=228M
innodb_buffer_pool_size=512M
default_storage_engine=INNODB
innodb_file_format=barracuda
innodb_large_prefix=1
sql_mode="TRADITIONAL"
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