1.rpm包式的安装操作
1.1 [root@localhost mysql]# rpm -Uvh mysql57-community-release-el7-8.noarch.rpm
warning: mysql57-community-release-el7-8.noarch.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:mysql57-community-release-el7-8 ################################# [100%]
1.2 [root@localhost mysql]# yum repolist all | grep mysql
mysql-connectors-community/x86_64 MySQL Connectors Community enabled: 21
mysql-connectors-community-source MySQL Connectors Community - So disabled
mysql-tools-community/x86_64 MySQL Tools Community enabled: 36
mysql-tools-community-source MySQL Tools Community - Source disabled
mysql-tools-preview/x86_64 MySQL Tools Preview disabled
mysql-tools-preview-source MySQL Tools Preview - Source disabled
mysql55-community/x86_64 MySQL 5.5 Community Server disabled
mysql55-community-source MySQL 5.5 Community Server - So disabled
mysql56-community/x86_64 MySQL 5.6 Community Server disabled
mysql56-community-source MySQL 5.6 Community Server - So disabled
mysql57-community/x86_64 MySQL 5.7 Community Server enabled: 110
mysql57-community-source MySQL 5.7 Community Server - So disabled
1.3 [root@localhost mysql]# yum repolist enabled | grep mysql
mysql-connectors-community/x86_64 MySQL Connectors Community 21
mysql-tools-community/x86_64 MySQL Tools Community 36
mysql57-community/x86_64 MySQL 5.7 Community Server 110
1.4 [root@localhost mysql]# yum install mysql-community-server
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
...
Resolving Dependencies
...
Dependencies Resolved
==============================================================
Package Arch Version Repository Size
==============================================================
Installing:
mysql-community-libs
x86_64 5.7.14-1.el7 mysql57-community 2.1 M
replacing mariadb-libs.x86_64 1:5.5.44-2.el7.centos
mysql-community-libs-compat
x86_64 5.7.14-1.el7 mysql57-community 2.0 M
replacing mariadb-libs.x86_64 1:5.5.44-2.el7.centos
mysql-community-server
x86_64 5.7.14-1.el7 mysql57-community 152 M
Installing for dependencies:
mysql-community-client
x86_64 5.7.14-1.el7 mysql57-community 24 M
mysql-community-common
x86_64 5.7.14-1.el7 mysql57-community 271 k
Transaction Summary
==============================================================
Install 3 Packages (+2 Dependent packages)
Total download size: 180 M
Is this ok [y/d/N]: y
Downloading packages:
warning: /var/cache/yum/x86_64/7/mysql57-community/packages/mysql-community-common-5.7.14-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Public key for mysql-community-common-5.7.14-1.el7.x86_64.rpm is not installed
...
(5/5): mysql-community-server-5.7.14-1.e | 152 MB 00:40
--------------------------------------------------------------
Total 3.5 MB/s | 180 MB 00:51
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
...
Is this ok [y/N]: y
...
Warning: RPMDB altered outside of yum.
...
Installing : mysql-community-ser [############## ] 4/6^ Installing : mysql-community-server-5.7.14-1.el7.x86_ 4/6
2. 启动mysql并查看状态
2.1 [root@localhost mysql]# service mysqld start
Redirecting to /bin/systemctl start mysqld.service
2.2 [root@localhost mysql]# service mysqld status
Redirecting to /bin/systemctl status mysqld.service
...
Main PID: 3936 (mysqld)
CGroup: /system.slice/mysqld.service
й╕йд3936 /usr/sbin/mysqld --daemonize --pid-file=/...
Aug 31 22:31:06 localhost.localdomain systemd[1]: Starting ...
..
3. 获取mysql默认的root密码并进行修改
3.1 [root@localhost mysql]# grep ‘temporary password’ /var/log/mysqld.log
2016-09-01T02:31:12.234701Z 1 [Note] A temporary password is generated for root@localhost: ?umjR+jp0qKG
3.2 [root@localhost mysql]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.14
...
3.3 mysql>ALTER USER ‘root’@’localhost’ IDENTIFIED BY ‘PENG_fei_123456’;
Query OK, 0 rows affected (0.01 sec)
4. MySQL 5.7, 密码规则修改, 创建用户, 和用户授权操作
4.1 修改密码判断规则为基于密码的长度
mysql> set global validate_password_policy=0;
Query OK, 0 rows affected (0.00 sec)
4.2 创建用户
mysql> CREATE USER ‘test’@’%’ IDENTIFIED BY ‘12345678’;
Query OK, 0 rows affected (0.00 sec)
4.3 授权，授权所有的权限命令
mysql> GRANT ALL ON . TO ‘test’@’%’;
Query OK, 0 rows affected (0.00 sec)ti
5. centos7 firewall开放mysql端口永久生效
5.1 [root@localhost webrtc]# firewall-cmd –zone=public –add-port=3306/tcp –permanent
success
5.2 [root@localhost webrtc]# firewall-cmd –reload
success