1, delete CentOS 7.7 built-in MariaDB related components:
# rpm -qa | grep -i mariadb --> mariadb-libs-5.5.64-1.el7.x86_64
# rpm -e --nodeps mariadb-libs-5.5.64-1.el7.x86_64
If you previously installed MySQL , uninstall: # RPM -qa | grep -i MySQL
If there /etc/my.cnf configuration file, delete: # RM -rf /etc/my.cnf
2, mounting mysql57-Community-Release-el7.rpm :
# rpm -ivh http://repo.mysql.com/mysql57-community-release-el7.rpm
NOTE: After the installation will /etc/yum.repos.d build directory mysql-community-source.repo and mysql-community.repo
3, install MySQL :
# yum list all | grep mysql-community
# yum -y install mysql-community-client mysql-community-common mysql-community-devel mysql-community-libs mysql-community-libs-compat mysql-community-server mysql-community-test
4, to initialize the MySQL : # = MySQL mysqld --user --initialize --datadir = / var / lib / MySQL
Note: Before initialization sure that / var / lib / mysql directory is empty
5, modify /etc/my.cnf configuration file:
# mv /etc/my.cnf /etc/my.cnf.bak
# vim /etc/my.cnf
[mysqld]
port=3306
socket=/var/lib/mysql/mysql.sock
data = / var / lib / mysql
pid-file=/var/run/mysqld/mysqld.pid
log-error=/var/log/mysqld.log
lower_case_table_names=1
character_set_server=utf8mb4
collation_server=utf8mb4_general_ci
innodb_file_per_table=1
skip_name_resolve=1
slow_query_log=1
slow_query_log_file=mysql-slow.log
symbolic-links=0
explicit_defaults_for_timestamp=1
server_id=1
sync_binlog=1
innodb_flush_log_at_trx_commit=1
log_bin=mysql-bin
log_bin_index=mysql-bin.index
binlog_format=row
6, start the MySQL service:
# systemctl start mysqld.service
# systemctl status mysqld.service
# Ps aux | grep mysqld
# Ss -tunlp | grep 3306
# tail -100 /var/log/mysqld.log
7. Configure MySQL service boot from Kai: # systemctl enable mysqld.service
8, see the root @ localhost user's initial password: # grep password /var/log/mysqld.log
9, Configuration MySQL Security Wizard: # mysql_secure_installation
10, authorized root users to remotely log in:
# mysql -uroot -p
mysql> create user root@'192.168.0.%' identified by '123456';
mysql> grant all on *.* to root@'192.168.0.%';
mysql> flush privileges;
11, using Navicat Premium connection MySQL :
