金坛网站建设报价,知乎 闲鱼网站建设和网站运营,网站后台怎么做外部链接,温岭做网站1、下载mysql安装包 下载哪个版本#xff0c;首先需要确定一下系统的glibc版本#xff0c;使用如下命令#xff1a;
rpm -qa | grep glibc
2、检查是否安装过mysql ps:因为以前用yum安装过#xff0c;所以先用yum卸载。如果不是此方式或者没安装过则跳过…1、下载mysql安装包 下载哪个版本首先需要确定一下系统的glibc版本使用如下命令
rpm -qa | grep glibc
2、检查是否安装过mysql ps:因为以前用yum安装过所以先用yum卸载。如果不是此方式或者没安装过则跳过 [rootlocalhost ~]# yum remove mysql
已加载插件fastestmirror
参数 mysql 没有匹配
不删除任何软件包 查看是否有mysql依赖
[rootlocalhost ~]# rpm -qa | grep mysql
如果有则卸载
//普通删除模式
rpm -e xxx(mysql_libs)
//强力删除模式,如果上述命令删除时提示有依赖其他文件则可以用该命令对其进行强力删除
rpm -e --nodeps xxx(mysql_libs)
3、检查是否有mariadb
[rootlocalhost ~]# rpm -qa | grep mariadb
mariadb-libs-5.5.68-1.el7.x86_64
如果有则卸载
[rootlocalhost ~]# rpm -e --nodeps mariadb-libs
[rootlocalhost ~]# rpm -e --nodeps mariadb-libs-5.5.68-1.el7.x86_64
错误未安装软件包 mariadb-libs-5.5.68-1.el7.x86_64
4、安装mysql依赖包
[rootlocalhost home]# yum install libaio
5、解压
进入/opt目录下将mysql文件解压
[rootlocalhost home]# cd /opt
[rootlocalhost opt]# tar -xvf mysql-8.0.36-linux-glibc2.17-x86_64.tar
mysql-test-8.0.36-linux-glibc2.17-x86_64.tar.xz
mysql-8.0.36-linux-glibc2.17-x86_64.tar.xz
mysql-router-8.0.36-linux-glibc2.17-x86_64.tar.xz[rootlocalhost opt]# tar -Jxvf mysql-8.0.36-linux-glibc2.17-x86_64.tar.xz
[rootlocalhost opt]# mv mysql-8.0.36-linux-glibc2.17-x86_64 mysql
按照习惯我们将文件移动到/usr/local目录下
[rootlocalhost opt]# mv /opt/mysql/ /usr/local/
我们切换到usr/local/目录下查看mysql是否存在
[rootlocalhost opt]# cd /usr/local/
[rootlocalhost local]# ll
总用量 0
drwxr-xr-x. 2 root root 6 4月 11 2018 bin
drwxr-xr-x. 2 root root 6 4月 11 2018 etc
drwxr-xr-x. 2 root root 6 4月 11 2018 games
drwxr-xr-x. 2 root root 6 4月 11 2018 include
drwxr-xr-x. 2 root root 6 4月 11 2018 lib
drwxr-xr-x. 2 root root 6 4月 11 2018 lib64
drwxr-xr-x. 2 root root 6 4月 11 2018 libexec
drwxr-xr-x. 9 root root 129 4月 2 21:20 mysql
drwxr-xr-x. 11 root root 151 8月 28 2023 nginx
drwxr-xr-x. 2 root root 6 4月 11 2018 sbin
drwxr-xr-x. 5 root root 49 8月 29 2023 share
drwxr-xr-x. 2 root root 6 4月 11 2018 src
创建数据库文件存放的文件夹。这个文件夹将来存放每个数据库的库文件
[rootlocalhost local]# cd mysql
[rootlocalhost mysql]# ls
bin docs include lib LICENSE man README share support-files
[rootlocalhost mysql]# mkdir mysqldb
7、mysql安装目录赋予权限
[rootlocalhost mysql]# chmod -R 777 /usr/local/mysql/
8、创建mysql组和用户
创建组
[rootlocalhost mysql]# groupadd mysql
创建用户(-s /bin/false参数指定mysql用户仅拥有所有权而没有登录权限)
[rootlocalhost mysql]# useradd -r -g mysql -s /bin/false mysql
将用户添加到组中
[rootlocalhost mysql]# chown -R mysql:mysql ./
9、修改mysql配置文件
[rootlocalhost mysql]# vi /etc/my.cnf
将里面的命令都删除掉然后添加以下命令保存并退出(如果有一定经验可以在里面添加一些其他的配置)
[mysqld]
# 设置3306端口
port3306
# 设置mysql的安装目录
basedir/usr/local/mysql
# 设置mysql数据库的数据的存放目录
datadir/usr/local/mysql/mysqldb
# 允许最大连接数
max_connections10000
# 允许连接失败的次数。这是为了防止有人从该主机试图攻击数据库系统
max_connect_errors10
# 服务端使用的字符集默认为UTF8
character-set-serverutf8
# 创建新表时将使用的默认存储引擎
default-storage-engineINNODB
# 默认使用“mysql_native_password”插件认证
default_authentication_pluginmysql_native_password
[mysql]
# 设置mysql客户端默认字符集
default-character-setutf8
[client]
# 设置mysql客户端连接服务端时默认使用的端口
port3306
default-character-setutf8
10、安装mysql
进入mysql 安装目录下
[rootlocalhost mysql]# cd /usr/local/mysql/bin/
安装mysql并记住初始化随机密码
[rootlocalhost bin]# ./mysqld --initialize --console
2024-04-02T13:25:55.133890Z 0 [Warning] [MY-010918] [Server] default_authentication_plugin is deprecated and will be removed in a future release. Please use authentication_policy instead.
2024-04-02T13:25:55.133913Z 0 [System] [MY-013169] [Server] /usr/local/mysql/bin/mysqld (mysqld 8.0.36) initializing of server in progress as process 2186
2024-04-02T13:25:55.139191Z 0 [Warning] [MY-013242] [Server] --character-set-server: utf8 is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
2024-04-02T13:25:55.154304Z 1 [System] [MY-013576] [InnoDB] InnoDB initialization has started.
2024-04-02T13:25:55.706150Z 1 [System] [MY-013577] [InnoDB] InnoDB initialization has ended.
2024-04-02T13:25:57.058187Z 6 [Note] [MY-010454] [Server] A temporary password is generated for rootlocalhost: ;cdUJXy!91b
2024-04-02T13:25:57.159383Z 6 [Warning] [MY-013360] [Server] Plugin mysql_native_password reported: mysql_native_password is deprecated and will be removed in a future release. Please use caching_sha2_password instead 11、启动mysql服务
进入mysql.server服务目录下并启动服务
[rootlocalhost bin]# cd /usr/local/mysql/support-files
[rootlocalhost support-files]# ./mysql.server start
Starting MySQL.Logging to /usr/local/mysql/mysqldb/localhost.localdomain.err.ERROR! The server quit without updating PID file (/usr/local/mysql/mysqldb/localhost.localdomain.pid). 如果第一次启动当初始化执行会有报错
此时不要担心重新给mysql安装目录赋予一下权限后再次执行。
[rootlocalhost support-files]# chmod -R 777 /usr/local/mysql
[rootlocalhost support-files]# ./mysql.server start
Starting MySQL. SUCCESS!
12、将mysql添加到系统进程中
[rootlocalhost support-files]# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
此时我们就可以使用服务进程操作mysql了
13、设置mysql自启动
[rootlocalhost support-files]# chmod x /etc/init.d/mysqld
[rootlocalhost support-files]# systemctl enable mysqld
mysqld.service is not a native service, redirecting to /sbin/chkconfig.
Executing /sbin/chkconfig mysqld on
此时mysql自启动就已经设置好了
14、修改root用户登录密码
登录mysql
[rootlocalhost support-files]# cd /usr/local/mysql/bin/
[rootlocalhost bin]# ./mysql -u root -p
执行后输入我们初始化时记录下的随机密码就会进入mysql。
修改密码
mysql alter user rootlocalhost IDENTIFIED WITH mysql_native_password BY 123456;
Query OK, 0 rows affected (0.01 sec)
15、设置允许远程登录
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 -ADatabase changed
mysql update user set user.Host%where user.Userroot;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 Changed: 1 Warnings: 0mysql flush privileges;
Query OK, 0 rows affected (0.00 sec)mysql quit
Bye
16、重启服务且测试
centos6与centos7的服务命令都支持
[rootlocalhost bin]# systemctl restart mysql
[rootlocalhost bin]# service mysql restart
Redirecting to /bin/systemctl restart mysql.service
查看mysql是否启动
systemctl status mysql 查看防火墙开放端口
[rootlocalhost bin]# firewall-cmd --list-all
在防火墙中将3306端口开放
[rootlocalhost bin]# firewall-cmd --zonepublic --add-port3306/tcp --permanent
success
//--permanent为永久生效没有此参数 服务器重启后配置失效
[rootlocalhost bin]# firewall-cmd --reload
success
在Navicat上测试连接 重启linux后测试自启动可选
reboot 测试mysql服务是否自启动
测试远程访问
