centos 7安装mysql

CentOS 2020-05-16

a.检查MySQL及相关RPM包，是否安装，如果有安装，则移除（rpm–e名称）

 
       1 
       [root@localhost ~]# rpm -qa | grep -i MysqL 
     
      2 
      MysqL-libs-5.1.66-2.el6_3.x86_64 
     
      3 
      # yum -y remove MysqL-libs*

b. 下载Linux对应的RPM包，如：CentOS6.4_64对应的RPM包，如下：

下载地址：http://ftp.ntu.edu.tw/pub/MySQL/Downloads/MySQL-5.6/

[root@localhost rpm]# ll

total 74364

-rw-r--r--. 1 root root 18442536 Dec 11 20:19 MysqL-client-5.6.15-1.el6.x86_64.rpm

4 -rw-r--r--. 1 root root 3340660 Dec 11 20:06 MysqL-devel-5.6.15-1.el6.x86_64.rpm

5	-rw-r--r--. 1 root root 54360600 Dec 11 20:03 MysqL-server-5.6.15-1.el6.x86_64.rpm

c.安装MysqL

# rpm -ivh MysqL-server-5.6.15-1.el6.x86_64.rpm

# rpm -ivh MysqL-devel-5.6.15-1.el6.x86_64.rpm

# rpm -ivh MysqL-client-5.6.15-1.el6.x86_64.rpm

#修改配置文件位置

# cp /usr/share/MysqL/my-default.cnf /etc/my.cnf

d.初始化MysqL及设置密码

 
         1 
         # /usr/bin/MysqL_install_db 
        
         2 
         # service MysqL start 
        
         3 
         # cat /root/.MysqL_secret #查看root账号密码 
        
4 
         # The random password set for the root user at Wed Dec 11 23:32:50 2013 (local time): qKTaFZnl 
         
         5 
         # MysqL -uroot –pqKTaFZnl 
        
6 
         MysqL> SET PASSWORD = PASSWORD('123456');#设置密码为123456 
         
         7 
         MysqL>exit 
        
8 
         # MysqL -uroot -p123456

e.允许远程登陆

01 MysqL> use MysqL;

02 selecthost,user,password from user;

03	+-----------------------+------+-------------------------------------------+

04 | host | user | password |

05

06

| localhost | root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |

07	\| localhost.localdomain \| root \| *1237E2CE819C427B0D8174456DD83C47480D37E8 \|

08 | 127.0.0.1 | root | *1237E2CE819C427B0D8174456DD83C47480D37E8 |

09	\| ::1 \| root \| *1237E2CE819C427B0D8174456DD83C47480D37E8 \|

10 +-----------------------+------+-------------------------------------------+

11

12 MysqL> update usersetpassword=password() where user='root';

13	host=`'%'where user=and host='localhost';`

14 MysqL> flush privileges;

15

exit

f.设置开机自启动

# chkconfig MysqL on

# chkconfig --list | grep MysqL

MysqL 0:off 1:off 2:on 3:on 4:on 5:on 6:off

g.MysqL的默认安装位置

 
       1 
        /var/lib/MysqL/#数据库目录

2	/usr/share/MysqL`#配置文件目录`

3 /usr/bin#相关命令目录

4 /etc/init.d/MysqL#启动脚本

修改字符集和数据存储路径

配置/etc/my.cnf文件,修改数据存放路径、MysqL .sock路径以及默认编码utf-8.

[html]view plaincopy 
      
 [client]
 password=123456
 port=3306
 default-character-set=utf8
 [MysqLd]
 port=3306
 character_set_server=utf8
 character_set_client=utf8
 collation-server=utf8_general_ci
 #(注意linux下MysqL安装完后是默认：表名区分大小写，列名不区分大小写；0：区分大小写，1：不区分大小写)
 lower_case_table_names=1
 #(设置最大连接数，默认为151，MysqL服务器允许的最大连接数16384;)
 max_connections=1000
 [MysqL]
 default-character-set=utf8

我的配置文件：

# For advice on how to change settings please see # http://dev.MysqL.com/doc/refman/5.6/en/server-configuration-defaults.html # *** DO NOT EDIT THIS FILE. It's a template which will be copied to the # *** default location during install,and will be replaced if you # *** upgrade to a newer version of MysqL. [client] default-character-set=utf8 port=3307 socket=/var/lib/MysqL/MysqL .sock [MysqLd] # Remove leading # and set to # the amount of RAM for the most important data # cache in MysqL. Start at 70% of total RAM for dedicated server,else 10%. # innodb_buffer_pool_size = 128M # Remove leading # to turn on a very important data integrity option: logging # changes to the binary log between backups. # log_bin character-set-server=utf8 # These are commonly set,remove the # and set as required. basedir = /usr datadir = /var/lib/MysqL port = 3307 # server_id = ..... socket =/var/lib/MysqL/MysqL .sock log-error=/var/lib/MysqL/MysqL_error.log pid-file=/var/lib/MysqL/MysqL.pid # Remove leading # to set options mainly useful for reporting servers. # The server defaults are faster for transactions and fast SELECTs. # Adjust sizes as needed,experiment to find the optimal values. # join_buffer_size = 128M # sort_buffer_size = 2M # read_rnd_buffer_size = 2M sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES ~ ~ ~ ~ ~ ~ ~ ~ "/etc/my.cnf" 38L,1339C written

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