按:下面文章经过我一路测试没有问题,是篇好文,在此感谢作者 别踩我袈裟 。另我在后面加上了自己添加的内容。
出处:https://www.cnblogs.com/renjidong/p/7047396.html
1.新开的云服务器,需要检测系统是否自带安装mysql
# yum list installed | grep mysql
2.如果发现有系统自带mysql,果断这么干
# yum -y remove mysql-libs.x86_64
3.随便在你存放文件的目录下执行,这里解释一下,由于这个mysql的yum源服务器在国外,所以下载速度会比较慢,还好mysql5.6只有79M大,而mysql5.7就有182M了,所以这是我不想安装mysql5.7的原因
# wget http://repo.mysql.com/mysql-community-release-el6-5.noarch.rpm
4.接着执行这句,解释一下,这个rpm还不是mysql的安装文件,只是两个yum源文件,执行后,在/etc/yum.repos.d/ 这个目录下多出mysql-community-source.repo和mysql-community.repo
# rpm -ivh mysql-community-release-el6-5.noarch.rpm
5.这个时候,可以用yum repolist mysql这个命令查看一下是否已经有mysql可安装文件
#yum repolist all | grep mysql
6.安装mysql 服务器命令(一路yes):
# yum install mysql-community-server
7.安装成功后
# service mysqld start
8.由于mysql刚刚安装完的时候,mysql的root用户的密码默认是空的,所以我们需要及时用mysql的root用户登录(第一次回车键,不用输入密码),并修改密码
# mysql -u root
# use mysql;
# update user set password=PASSWORD(‘123456‘) where User=‘root‘;
# flush privileges;
9.查看mysql是否自启动,并且设置开启自启动命令
# chkconfig --list | grep mysqld
# chkconfig mysqld on
10.mysql安全设置(系统会一路问你几个问题,看不懂复制之后翻译,基本上一路yes):
# mysql_secure_installation
以下为我个人添加的内容:
进入mysql数据库管理控制台
#./mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \\g.
Your MySQL connection id is 4
Server version: 5.0.67 Source distribution
Type ‘help;‘ or ‘\\h‘ for help. Type ‘\\c‘ to clear the buffer.
mysql> grant all privileges on *.* to [email protected]‘%‘ identified by "root";
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> grant select,update,insert,delete on *.* to [email protected] identified by "root";
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> quit
Bye
上面的步骤是进行授权
然后重启mysqld服务
# service mysqld restart
Stopping MySQL: [ OK ]
Starting MySQL: [ OK ]
再次进入mysql管理控制台(修改密码这一步不可或缺,否则容易出现“access denied for user root @localhost”错误)
# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \\g.
Your MySQL connection id is 2
Server version: 5.0.67 Source distribution
Type ‘help;‘ or ‘\\h‘ for help. Type ‘\\c‘ to clear the buffer.
mysql> use mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> update user set password=password(‘12345678‘) where user=‘root‘;
Query OK, 5 rows affected (0.00 sec)
Rows matched: 5 Changed: 5 Warnings: 0
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> quit
Bye
以上步骤是修改root用户的密码
之后开启防火墙的3306端口
# vi /etc/sysconfig/iptables
以下是/etc/sysconfig/iptables的内容,其中蓝色一行是新加的。这一行可以由上一行复制得到,方法是在22哪行按下yy,然后按p,然后点insert键进入编辑模式,修改22为3306,然后点esc,输入wq保存退出。
# Firewall configuration written by system-config-firewall
# Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
防火墙重启
# service iptables restart
iptables: Flushing firewall rules: [ OK ]
iptables: Setting chains to policy ACCEPT: filter [ OK ]
iptables: Unloading modules: [ OK ]
iptables: Applying firewall rules: [ OK ]
之后就可以在终端上敲#ifconfig,找出虚拟机对应的ip地址,比如说是192.168.0.100,然后就可以用mysqlfront或程序连接数据库了。
2018年3月25日14点41分