centos5.5 快速安装mysql
安装MySQL。
[root@sample ~]# yum -y install mysql-server ← 安装MySQL
[root@sample ~]# yum -y install php-mysql ← 安装php-mysql
配置MySQL
[root@sample ~]#vim /etc/my.cnf ← 编辑MySQL的配置文件
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
# Default to using old password format for compatibility with mysql 3.x
# clients (those using the mysqlclient10 compatibility package).
old_passwords=1 ← 找到这一行,在这一行的下面添加新的规则,让MySQL的默认编码为UTF-8
default-character-set = utf8 ← 添加这一行
然后在mysql数据库的配置文件末尾添加:
[mysql]
default-character-set = utf8
启动MySQL服务
[root@sample ~]# chkconfig mysqld on ← 设置MySQL服务随系统启动自启动
[root@sample ~]# chkconfig --list mysqld ← 确认MySQL自启动
mysqld 0:off 1:off 2:on 3:on 4:on 5:on 6:off ← 如果2--5为on的状态就OK
[root@sample ~]#/etc/rc.d/init.d/mysqld start ← 启动MySQL服务
Initializing MySQL database: [ OK ]
Starting MySQL: [ OK ]
MySQL初始环境设定
[1]为MySQL的root用户设置密码
MySQL在刚刚被安装的时候,它的root用户是没有被设置密码的。首先来设置MySQL的root密码。
[root@sample ~]# mysql -u root ← 用root用户登录MySQL服务器
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2 to server version: 4.1.20
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> select user,host,password from mysql.user; ← 查看用户信息
+------+------------------------------+---------------+
| user | host | password |
+------+------------------------------+---------------+
| root | localhost | | ← root密码为空
| root | sample.centospub.com | | ← root密码为空
| | sample.centospub.com | |
| | localhost | |
|root | % |XXX |
| | | |
+------+------------------------------+---------------+
4 rows in set (0.00 sec)
mysql> set password for root@localhost=password(' 在这里填入root密码'); ← 设置root密码
Query OK, 0 rows affected (0.01 sec)
mysql> set password for root@'sample.centospub.com'=password(' 在这里填入root密码'); ← 设置root密码
Query OK, 0 rows affected (0.01 sec)只有设置了这个才可以,才可以通过数据库来安装网址
mysql> set password for root@'xxx'=password('xxx' ); ← 设置root密码
Query OK, 0 rows affected (0.01 sec)
mysql> select user,host,password from mysql.user; ← 查看用户信息
+------+--------------------------------+--------------------------+
| user | host | password |
+------+--------------------------------+--------------------------+
| root | localhost | 19b68057189b027f | ← root密码被设置
| root | sample.centospub.com | 19b68057189b027f | ← root密码被设置
| | sample.centospub.com | |
| | localhost | |
+------+--------------------------------+--------------------------+
4 rows in set (0.01 sec)
mysql> exit ← 退出MySQL服务器
Bye
然后,测试一下root密码有没有生效。
[root@sample ~]# mysql -u root ← 通过空密码用root登录
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) ← 出现此错误信息说明密码设置成功
[root@localhost ~]# mysql -u root -h sample.centospub.com ← 通过空密码用root登录
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) ← 出现此错误信息说明密码设置成功
[root@sample ~]#mysql -u root -p ← 通过密码用root登录
Enter password: ← 在这里输入密码
Welcome to the MySQL monitor. Commands end with ; or \g. ← 确认用密码能够成功登录
Your MySQL connection id is 5 to server version: 4.1.20
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> exit
Bye
[root@sample ~]# mysql -u root -h sample.centospub.com -p ← 通过密码用root登录
Enter password: ← 在这里输入密码
Welcome to the MySQL monitor. Commands end with ; or \g. ← 确认用密码能够成功登录
Your MySQL connection id is 6 to server version: 4.1.20
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> exit ← 退出MySQL服务器
Bye
[2] 删除匿名用户
在MySQL刚刚被安装后,存在用户名、密码为空的用户。这使得数据库服务器有无需密码被登录的可能性。为消除隐患,将匿名用户删除。
[root@sample ~]# mysql -u root -p ← 通过密码用root登录
Enter password: ← 在这里输入密码
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 7 to server version: 4.1.20
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> select user,host from mysql.user; ← 查看用户信息
+------+----------------------------+
| user | host |
+------+----------------------------+
| | localhost |
| root | localhost |
| | sample.centospub.com |
| root | sample.centospub.com |
+------+----------------------------+
4 rows in set (0.02 sec)
mysql> delete from mysql.user where user=''; ← 删除匿名用户
Query OK, 2 rows affected (0.17 sec)
mysql> select user,host from mysql.user; ← 查看用户信息
+------+----------------------------+
| user | host |
+------+----------------------------+
| root | localhost |
| root | sample.centospub.com |
+------+----------------------------+
2 rows in set (0.00 sec)
mysql> exit ← 退出MySQL服务器
Bye
好了,下面都不是必须的了!
测试MySQL
[root@sample ~]# mysql -u root -p ← 通过密码用root登录
Enter password: ← 在这里输入密码 www.jbxue.com
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 9 to server version: 4.1.20
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> grant all privileges on test.* to centospub@localhost identified by '在这里定义密码'; ← 建立对test数据库有完全操
作权限的名为centospub的用户
Query OK, 0 rows affected (0.03 sec)
mysql> select user from mysql.user where user='centospub'; ← 确认centospub用户的存在与否
+---------+
| user |
+---------+
| centospub | ← 确认centospub已经被建立
+---------+
1 row in set (0.01 sec)
mysql> exit ← 退出MySQL服务器
Bye
[root@sample ~]# mysql -u centospub -p ← 用新建立的centospub用户登录MySQL服务器
Enter password: ← 在这里输入密码
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 10 to server version: 4.1.20
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> create database test; ← 建立名为test的数据库
Query OK, 1 row affected (0.00 sec)
mysql> show databases; ← 查看系统已存在的数据库
+-------------+
| Database |
+-------------+
| test |
+-------------+
1 row in set (0.00 sec)
mysql> use test ← 连接到数据库 www.jbxue.com
Database changed
mysql> create table test(num int, name varchar(50)); ← 在数据库中建立表
Query OK, 0 rows affected (0.03 sec)
mysql> show tables; ← 查看数据库中已存在的表
+-------------------+
| Tables_in_test |
+-------------------+
| test |
+-------------------+
1 row in set (0.01 sec)
mysql> insert into test values(1,'Hello World!'); ← 插入一个值到表中
Query OK, 1 row affected (0.02 sec)
mysql> select * from test; ← 查看数据库中的表的信息
+------+-------------------+
| num | name |
+------+-------------------+
| 1 | Hello World! |
+------+-------------------+
1 row in set (0.00 sec)
mysql> update test set name='Hello Everyone!'; ← 更新表的信息,赋予新的值
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> select * from test; ← 查看数据库中的表的信息
+------+----------------------+
| num | name |
+------+----------------------+
| 1 | Hello Everyone! | ← 确认被更新到新的值
+------+----------------------+
1 row in set (0.01 sec)
mysql> delete from test where num=1; ← 删除表内的值
Query OK, 1 row affected (0.00 sec)
mysql> select * from test; ← 确认删除结果
Empty set (0.01 sec)
mysql> drop table test; ← 删除表
Query OK, 0 rows affected (0.01 sec)
mysql> show tables; ← 查看表信息 www.jbxue.com
Empty set (0.00 sec) ← 确认表已被删除
mysql> drop database test; ← 删除名为test的数据库
Query OK, 0 rows affected (0.01 sec)
mysql> show databases; ← 查看已存在的数据库
Empty set (0.01 sec) ← 确认test数据库已被删除(这里非root用户的关系,看不到名为mysql的数据库)
mysql> exit ← 退出MySQL服务器
Bye
然后,删除测试用过的遗留用户。
[root@sample ~]# mysql -u root -p ← 通过密码用root登录
Enter password: ← 在这里输入密码
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 12 to server version: 4.1.20
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> revoke all privileges on *.* from centospub@localhost ; ← 取消centospub用户对数据库的操作权限
Query OK, 0 rows affected (0.00 sec)
mysql> delete from mysql.user where user='centospub' and host='localhost'; ← 删除centospub用户
Query OK, 1 row affected (0.01 sec)
mysql> select user from mysql.user where user='centospub'; ← 查找用户centospub,确认已删除与否
Empty set (0.01 sec) ← 确认centospub用户已不存在
mysql> flush privileges; ← 刷新,使以上操作生效
Query OK, 0 rows affected (0.01 sec)
mysql> exit
Bye
[root@sample ~]# /etc/rc.d/init.d/httpd restart ← 重新启动HTTP服务
Stopping httpd: [ OK ]
Starting httpd: [ OK ]
centos5.5 快速安装mysql的更多相关文章
- 二进制方式快速安装MySQL数据库命令集合
二进制方式快速安装MySQL数据库命令集合 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 1.安装mysql ls mysql ...
- centos7下快速安装mysql
CentOS 7的yum源中貌似没有正常安装MySQL时的mysql-sever文件,需要去官网上下载 # wget http://dev.mysql.com/get/mysql-community- ...
- linux快速安装mysql教程
#安装mysql服务器:yum install mysql-server #设置开机启动chkconfig mysqld on#现在启动服务service mysqld start #设置root初始 ...
- Linux下快速安装Mysql及使用
1.安装 查看有没有安装过: yum list installed mysql* rpm -qa | grep mysql* 查看有没有安装包: yum list mysql* 安装mysql客户端: ...
- 远程快速安装mysql
远程服务器安装mysql数据库 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 l ...
- centos使用yum存储快速安装MySQL
RHEL/CentOS 7.x MySQL yum库 https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm RHEL ...
- linux 快速安装mysql
yum list | grep mysqlyum install -y mysql-server mysql mysql-devel service mysqld startmysqladmin -u ...
- centos快速安装mysql
1. wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm 2. rpm -ivh mysql-community-r ...
- 阿里云centos7使用yum安装mysql的正确姿势
yum快速安装mysql 新增yum源 rpm -Uvh http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm 查看可用的 ...
随机推荐
- arcgis python图形信息
属性 说明 area 面要素的面积值:对于所有其他要素类型为空 centroid 如果质心位于要素之内或要素之上则为真:否则返回标注点(返回一个点对象) 范围 返回一个范围对象 firstPoint ...
- poi 技术动态更新 Excel模板内容,动态更新内容
1.控制器方法 private URL base = this.getClass().getResource(""); /** * 流拍之后,可以下载询价单 * * @param ...
- [Android Studio] Android Studio中查看类的继承关系
转载自:http://blog.csdn.net/hyr83960944/article/details/38098091 查看类的继承关系的快捷键F4,在Android Studio常用快捷键这篇文 ...
- Steve Lin:如何撰写一篇优秀的SIGGRAPH论文
英文原版 PPT下载:http://vdisk.weibo.com/s/z7VKRh2i3R4YO 一篇优秀的论文应该是这样的 广大的研究同仁介绍了这篇论文所包含的重要想法和所获得的结果 在论文中描 ...
- Android Studio 打印调试信息
转自:https://www.2cto.com/kf/201611/569468.html 之前开发单片机软件还是上位机都习惯使用printf(),相信很多很会有和我一样的习惯.开始学习安卓了,当然也 ...
- java学习笔记14--多线程编程基础1
本文地址:http://www.cnblogs.com/archimedes/p/java-study-note14.html,转载请注明源地址. 多线程编程基础 多进程 一个独立程序的每一次运行称为 ...
- hadoop中OutputFormat 接口的设计与实现
OutputFormat 主要用于描述输出数据的格式,它能够将用户提供的 key/value 对写入特定格式的文件中. 本文将介绍 Hadoop 如何设计 OutputFormat 接口 , 以及一些 ...
- Jquery chosen动态设置值 select Ajax动态载入数据 设置chosen和获取他们选中的值
在做一个编辑对话框时,要对里面带有select option的操作.主要是想动态载入option和对option的选中.可是由于项目中使用了jquery里的chosen()方法.怎么也无法实现效果 ...
- .NET破解之爱奇迪(三)
本教程只能用于学习研究,不可进行任何商业用途.如有使用,请购买正版,尊重他人劳动成果和知识产权! .NET破解之爱奇迪(一) .NET破解之爱奇迪(二) 一打开软件,就看到各种注册和未注册提示信息,就 ...
- SyntaxError: Non-UTF-8 code starting with '\xc5' in file t.py on line 3,but no encoding declared;see http://python.org/dev/peps/pep-0263/ for details
解决方案是: 在程序最上面加上:# coding=gbk 这样程序就可以正常运行了.