Table of Contents
导入数据库:
远程ip授权登陆:
Home Database Mysql Tutorial CentOS6.4下Mysql数据库的安装与配置,导入数据库,授权远程ip_MySQL

CentOS6.4下Mysql数据库的安装与配置,导入数据库,授权远程ip_MySQL

May 31, 2016 am 08:46 AM

CentOS6CentOS

卸载掉原有mysql

因为mysql数据库在Linux上实在是太流行了,所以目前下载的主流Linux系统版本基本上都集成了mysql数据库在里面,我们可以通过如下命令来查看我们的操作系统上是否已经安装了mysql数据库

[root@xiaoluo ~]# rpm -qa | grep mysql  // 这个命令就会查看该操作系统上是否已经安装了mysql数据库
Copy after login

有的话,我们就通过 rpm -e 命令 或者 rpm -e --nodeps 命令来卸载掉

[root@xiaoluo ~]# rpm -e mysql  // 普通删除模式[root@xiaoluo ~]# rpm -e --nodeps mysql  // 强力删除模式,如果使用上面命令删除时,提示有依赖的其它文件,则用该命令可以对其进行强力删除
Copy after login

在删除完以后我们可以通过 rpm -qa | grep mysql 命令来查看mysql是否已经卸载成功!!

通过yum来进行mysql的安装

我是通过yum的方式来进行mysql的数据库安装,首先我们可以输入 yum list | grep mysql 命令来查看yum上提供的mysql数据库可下载的版本:

[root@xiaoluo ~]# yum list | grep mysql
Copy after login

然后我们可以通过输入yum install -y mysql-server mysql mysql-devel命令将mysql mysql-server mysql-devel都安装好(注意:安装mysql时我们并不是安装了mysql客户端就相当于安装好了mysql数据库了,我们还需要安装mysql-server服务端才行)

注释:mysql-deve用于c语言开发接口,可以不安装

[root@xiaoluo ~]# yum install -y mysql-server mysql mysql-deve
Copy after login
<strong>mysql数据库的初始化及相关配置</strong>
Copy after login

我们在安装完mysql数据库以后,会发现会多出一个mysqld的服务,这个就是咱们的数据库服务,我们通过输入service mysqld start命令就可以启动我们的mysql服务。

注意:如果我们是第一次启动mysql服务,mysql服务器首先会进行初始化的配置,如:

[root@xiaoluo ~]# <strong>service mysqld start</strong>[root@xiaoluo ~]# <strong>service mysqld restart</strong>
Copy after login

我们在使用mysql数据库时,都得首先启动mysqld服务,我们可以 通过chkconfig --list | grep mysqld命令来查看mysql服务是不是开机自动启动,如:

[root@xiaoluo ~]# chkconfig --list | grep mysqldmysqld 0:关闭1:关闭2:关闭3:关闭4:关闭5:关闭6:关闭
Copy after login

我们发现mysqld服务并没有开机自动启动,我们当然可以通过chkconfig mysqld on命令来将其设置成开机启动,这样就不用每次都去手动启动了

[root@xiaoluo ~]# chkconfig mysqld on[root@xiaoluo ~]# chkconfig --list | grep mysqlmysqld 0:关闭1:关闭2:启用3:启用4:启用5:启用6:关闭
Copy after login

mysql数据库安装完以后只会有一个root管理员账号,但是此时的root账号还并没有为其设置密码,在第一次启动mysql服务时,会进行数据库的一些初始化工作,在输出的一大串信息中,我们看到有这样一行信息 :

/usr/bin/mysqladmin -u root password 'new-password'  // 为root账号设置密码
Copy after login

所以我们可以通过 该命令来给我们的root账号设置密码(注意:这个root账号是mysql的root账号,非Linux的root账号)

[root@xiaoluo ~]# <strong>mysqladmin -u root password</strong> 'root'  // 通过该命令给root账号设置密码为 root
Copy after login

此时我们就可以通过mysql -u root -p命令来登录我们的mysql数据库了

五、mysql数据库的主要配置文件

1./etc/my.cnf这是mysql的主配置文件

我们可以查看一下这个文件的一些信息

[root@xiaoluo etc]# ls my.cnf my.cnf[root@xiaoluo etc]# cat my.cnf [mysqld]datadir=/var/lib/mysqlsocket=/var/lib/mysql/mysql.sockuser=mysql# Disabling symbolic-links is recommended to prevent assorted security riskssymbolic-links=0[mysqld_safe]log-error=/var/log/mysqld.logpid-file=/var/run/mysqld/mysqld.pid
Copy after login

2./var/lib/mysqlmysql数据库的数据库文件存放位置

我们的mysql数据库的数据库文件通常是存放在了/ver/lib/mysql这个目录下

[root@xiaoluo ~]# cd /var/lib/mysql/[root@xiaoluo mysql]# ls -l总用量 20488-rw-rw----. 1 mysql mysql 10485760 4月 6 22:01 ibdata1-rw-rw----. 1 mysql mysql5242880 4月 6 22:01 ib_logfile0-rw-rw----. 1 mysql mysql5242880 4月 6 21:59 ib_logfile1drwx------. 2 mysql mysql 4096 4月 6 21:59 mysql  // 这两个是mysql数据库安装时默认的两个数据库文件srwxrwxrwx. 1 mysql mysql0 4月 6 22:01 mysql.sockdrwx------. 2 mysql mysql 4096 4月 6 21:59 test  // 这两个是mysql数据库安装时默认的两个数据库文件
Copy after login

我们可以自己创建一个数据库,来验证一下该数据库文件的存放位置

创建一个我们自己的数据库:mysql> create database xiaoluo;Query OK, 1 row affected (0.00 sec)[root@xiaoluo mysql]# ls -l总用量 20492-rw-rw----. 1 mysql mysql 10485760 4月 6 22:01 ibdata1-rw-rw----. 1 mysql mysql5242880 4月 6 22:01 ib_logfile0-rw-rw----. 1 mysql mysql5242880 4月 6 21:59 ib_logfile1drwx------. 2 mysql mysql 4096 4月 6 21:59 mysqlsrwxrwxrwx. 1 mysql mysql0 4月 6 22:01 mysql.sockdrwx------. 2 mysql mysql 4096 4月 6 21:59 testdrwx------. 2 mysql mysql 4096 4月 6 22:15 xiaoluo  // 这个就是我们刚自己创建的xiaoluo数据库[root@xiaoluo mysql]# cd xiaoluo/[root@xiaoluo xiaoluo]# lsdb.opt
Copy after login

3./var/logmysql数据库的日志输出存放位置

我们的mysql数据库的一些日志输出存放位置都是在/var/log这个目录下

[root@xiaoluo xiaoluo]# cd [root@xiaoluo ~]# cd /var/log[root@xiaoluo log]# lsamandacron maillog-20130331 spice-vdagent.loganaconda.ifcfg.logcron-20130331mcelog spooleranaconda.logcups messages spooler-20130331anaconda.program.logdirsrv messages-20130331sssdanaconda.storage.logdmesg<strong>mysqld.log</strong> tallyloganaconda.syslog dmesg.oldntpstats tomcat6anaconda.xlog dracut.log piranhawpa_supplicant.loganaconda.yum.loggdmpm-powersave.log wtmpaudit httpdpppXorg.0.logboot.logibacm.logprelinkXorg.0.log.oldbtmplastlogsa Xorg.1.logbtmp-20130401 libvirtsambaXorg.2.logcluster luci secure Xorg.9.logConsoleKitmaillogsecure-20130331yum.log
Copy after login

导入数据库:

mysql -p登陆,然后source /xx/xx.sql即可

远程ip授权登陆:

mysql> grant all privileges on *.* to'root'@'219.141.190.16'identified by 'hello54987663'

    -> ;

Query OK, 0 rows affected (0.02 sec)

mysql> flush privileges

    -> ;

Query OK, 0 rows affected (0.00 sec)

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Nordhold: Fusion System, Explained
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1664
14
PHP Tutorial
1268
29
C# Tutorial
1248
24
MySQL's Role: Databases in Web Applications MySQL's Role: Databases in Web Applications Apr 17, 2025 am 12:23 AM

The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

Explain the role of InnoDB redo logs and undo logs. Explain the role of InnoDB redo logs and undo logs. Apr 15, 2025 am 12:16 AM

InnoDB uses redologs and undologs to ensure data consistency and reliability. 1.redologs record data page modification to ensure crash recovery and transaction persistence. 2.undologs records the original data value and supports transaction rollback and MVCC.

MySQL: An Introduction to the World's Most Popular Database MySQL: An Introduction to the World's Most Popular Database Apr 12, 2025 am 12:18 AM

MySQL is an open source relational database management system, mainly used to store and retrieve data quickly and reliably. Its working principle includes client requests, query resolution, execution of queries and return results. Examples of usage include creating tables, inserting and querying data, and advanced features such as JOIN operations. Common errors involve SQL syntax, data types, and permissions, and optimization suggestions include the use of indexes, optimized queries, and partitioning of tables.

MySQL's Place: Databases and Programming MySQL's Place: Databases and Programming Apr 13, 2025 am 12:18 AM

MySQL's position in databases and programming is very important. It is an open source relational database management system that is widely used in various application scenarios. 1) MySQL provides efficient data storage, organization and retrieval functions, supporting Web, mobile and enterprise-level systems. 2) It uses a client-server architecture, supports multiple storage engines and index optimization. 3) Basic usages include creating tables and inserting data, and advanced usages involve multi-table JOINs and complex queries. 4) Frequently asked questions such as SQL syntax errors and performance issues can be debugged through the EXPLAIN command and slow query log. 5) Performance optimization methods include rational use of indexes, optimized query and use of caches. Best practices include using transactions and PreparedStatemen

Why Use MySQL? Benefits and Advantages Why Use MySQL? Benefits and Advantages Apr 12, 2025 am 12:17 AM

MySQL is chosen for its performance, reliability, ease of use, and community support. 1.MySQL provides efficient data storage and retrieval functions, supporting multiple data types and advanced query operations. 2. Adopt client-server architecture and multiple storage engines to support transaction and query optimization. 3. Easy to use, supports a variety of operating systems and programming languages. 4. Have strong community support and provide rich resources and solutions.

MySQL vs. Other Programming Languages: A Comparison MySQL vs. Other Programming Languages: A Comparison Apr 19, 2025 am 12:22 AM

Compared with other programming languages, MySQL is mainly used to store and manage data, while other languages ​​such as Python, Java, and C are used for logical processing and application development. MySQL is known for its high performance, scalability and cross-platform support, suitable for data management needs, while other languages ​​have advantages in their respective fields such as data analytics, enterprise applications, and system programming.

How does MySQL index cardinality affect query performance? How does MySQL index cardinality affect query performance? Apr 14, 2025 am 12:18 AM

MySQL index cardinality has a significant impact on query performance: 1. High cardinality index can more effectively narrow the data range and improve query efficiency; 2. Low cardinality index may lead to full table scanning and reduce query performance; 3. In joint index, high cardinality sequences should be placed in front to optimize query.

MySQL: From Small Businesses to Large Enterprises MySQL: From Small Businesses to Large Enterprises Apr 13, 2025 am 12:17 AM

MySQL is suitable for small and large enterprises. 1) Small businesses can use MySQL for basic data management, such as storing customer information. 2) Large enterprises can use MySQL to process massive data and complex business logic to optimize query performance and transaction processing.

See all articles