Linux安装MySQL5.6的两种简单方法

# yum install -y vim lrzsz wget httpd-tools net-tools gcc-c++ lsof openldap-devel nmap nc git bc iftop dos2unix iotop python-pip automake autoconf readline-devel sshpass

# systemctl enable --now firewalld
# firewall-cmd --zone=public --add-port=3306/tcp --permanent
success
# firewall-cmd --reload
success

# mkdir -p /home/data/mysql
# mkdir -p /home/softs/mysql
# cd /home/softs/
# wget https://cdn.mysql.com//Downloads/MySQL-5.6/MySQL-5.6.49-1.el7.x86_64.rpm-bundle.tar
# tar -xf MySQL-5.6.49-1.el7.x86_64.rpm-bundle.tar -C ./mysql/

# cd mysql/
# yum localinstall -y ./* #安装本地rpm包，并解决依赖问题

#查看默认初始密码
# cat ~/.mysql_secret 
# The random password set for the root user at Tue Jan 25 21:52:49 2022 (local time): MxcHmlEtbimd0ax2

# cp /etc/my.cnf /etc/my.cnf.old
# vim /etc/my.cnf
====content====
[mysqld_safe]
log-error=/var/log/mysql/mysql.log
pid-file=/var/run/mysql/mysql.pid
====end====
# systemctl start mysql
# netstat -antup |grep mysql
tcp6    0    0 :::3306    :::*    LISTEN    8567/mysqld

# mysqladmin -uroot -pMxcHmlEtbimd0ax2 password root1234

# vim /etc/yum.repos.d/mysql.repo
====content====
# Enable to use MySQL 5.6
[mysql]
name=mysql
baseurl=http://repo.mysql.com/yum/mysql-5.6-community/el/7/x86_64/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
====end====
# yum clean all
# yum makecache

# yum install -y mysql mysql-server mysql-devel mysql-test mysql-embedded mysql-shared-compat mysql-shared mysql-common

# mkdir -p /home/data/mysql
# chown -R mysql:mysql /home/data/mysql/
# vim /etc/my.cnf
====content====
# datadir=/var/lib/mysql
datadir=/home/data/mysql
====end====

# systemctl start mysql
# netstat -antup |grep mysql
tcp6    0    0 :::3306    :::*    LISTEN    8567/mysqld

# mysql_secure_installation
NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!
In order to log into MySQL to secure it, we'll need the currentpassword for the root user.
  If you've just installed MySQL, andyou haven't set the root password yet, the password will be blank,so you should just press enter here.
Enter current password for root (enter for none): 
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MySQLroot user without the proper authorisation.
Set root password? [Y/n] y
New password: 
Re-enter new password: 
Password updated successfully!
Reloading privilege tables.. 
... Success!
By default, a MySQL installation has an anonymous user, allowing anyoneto log into MySQL without having to have a user account created forthem.  This is intended only for testing, and to make the installationgo a bit smoother.  You should remove them before moving into aproduction environment.
Remove anonymous users? [Y/n] y 
... Success!
Normally, root should only be allowed to connect from 'localhost'.  Thisensures that someone cannot guess at the root password from the network.
Disallow root login remotely? [Y/n] y 
... Success!
By default, MySQL comes with a database named 'test' that anyone canaccess.  This is also intended only for testing, and should be removedbefore moving into a production environment.
Remove test database and access to it? [Y/n] y 
- Dropping test database... ERROR 1008 (HY000) at line 1: Can't drop database 'test'; database doesn't exist ... Failed!  Not critical, keep moving... 
- Removing privileges on test database... 
... Success!
Reloading the privilege tables will ensure that all changes made so farwill take effect immediately.
Reload privilege tables now? [Y/n] y 
... Success! All done!  If you've completed all of the above steps, your MySQLinstallation should now be secure.
Thanks for using MySQL!
Cleaning up...