已经编写好了一个脚本,直接执行脚本,就可以将MySQL装好,你也可以照着脚本,自己一条条执行(操作略微不同,意思一样,不要盲目复制粘贴!),附上脚本,我会在每条做上注释讲解:
vim onekey_install_mysql_binary_v3.sh
#!/bin/bash
#解决软件的依赖关系
yum install cmake ncurses-devel gcc gcc-c++ vim lsof bzip2 openssl-devel ncurses-compat-libs -y
#解压mysql二进制安装包
tar xf mysql-5.7.40-linux-glibc2.12-x86_64.tar.gz
#移动mysql解压后的文件到/usr/local下改名叫mysql
mv mysql-5.7.40-linux-glibc2.12-x86_64 /usr/local/mysql
#新建组和用户 mysql
groupadd mysql
#mysql这个用户的shell 是/bin/false 属于mysql组
useradd -r -g mysql -s /bin/false mysql
#关闭firewalld防火墙服务,并且设置开机不要启动
service firewalld stop
systemctl disable firewalld
#临时关闭selinux
setenforce 0
#永久关闭selinux
sed -i '/^SELINUX=/ s/enforcing/disabled/' /etc/selinux/config
#新建存放数据的目录
mkdir /data/mysql -p
#修改/data/mysql目录的权限归mysql用户和mysql组所有,这样mysql用户启动的mysql进程可以对这个文件夹进行读写了
chown mysql:mysql /data/mysql/
#只是允许mysql这个用户和mysql组可以访问,其他人都不能访问
chmod 750 /data/mysql/
#进入/usr/local/mysql/bin目录
cd /usr/local/mysql/bin/
#初始化mysql
./mysqld --initialize --user=mysql --basedir=/usr/local/mysql/ --datadir=/data/mysql &>passwd.txt
#让mysql支持ssl方式登录的设置
./mysql_ssl_rsa_setup --datadir=/data/mysql/
#获得临时密码
tem_passwd=$(cat passwd.txt |grep "temporary"|awk '{print $NF}')
#$NF表示最后一个字段
# abc=$(命令) 优先执行命令,然后将结果赋值给abc
# 修改PATH变量,加入mysql bin目录的路径
#临时修改PATH变量的值
export PATH=/usr/local/mysql/bin/:$PATH
#重新启动linux系统后也生效,永久修改
echo 'PATH=/usr/local/mysql/bin:$PATH' >>/root/.bashrc
#复制support-files里的mysql.server文件到/etc/init.d/目录下叫mysqld
cp ../support-files/mysql.server /etc/init.d/mysqld
#修改/etc/init.d/mysqld脚本文件里的datadir目录的值
sed -i '70c datadir=/data/mysql' /etc/init.d/mysqld
#生成/etc/my.cnf配置文件
cat >/etc/my.cnf <<EOF
[mysqld_safe]
[client]
socket=/data/mysql/mysql.sock
[mysqld]
socket=/data/mysql/mysql.sock
port = 3306
open_files_limit = 8192
innodb_buffer_pool_size = 512M
character-set-server=utf8
[mysql]
auto-rehash
prompt=\\u@\\d \\R:\\m mysql>
EOF
#修改内核的open file的数量
ulimit -n 1000000
#设置开机启动的时候也配置生效
echo "ulimit -n 1000000" >>/etc/rc.local
chmod +x /etc/rc.d/rc.local
#将mysqld添加到linux系统里服务管理名单里
/sbin/chkconfig --add mysqld
#设置mysqld服务开机启动
/sbin/chkconfig mysqld on
#启动mysqld进程
service mysqld start
#初次修改密码需要使用--connect-expired-password 选项
#-e 后面接的表示是在mysql里需要执行命令 execute 执行
#set password='Jiangda123#'; 修改root用户的密码为Jiangda123#
mysql -uroot -p$tem_passwd --connect-expired-password -e "set password = 'Jiangda123#';"
#检验上一步修改密码是否成功,如果有输出能看到mysql里的数据库,说明成功。
mysql -uroot -p'Jiangda123#' -e "show databases;"
在执行脚本前,在MySQL官方网站下载https://downloads.mysql.com/archives/community/
下好之后用Xftp传到你的linux服务器上,解压:
[root@jd-mysql ~]# tar xf mysql-5.7.40-linux-glibc2.12-x86_64.tar.gz
[root@jd-mysql ~]# ls
anaconda-ks.cfg mysql-5.7.40-linux-glibc2.12-x86_64.tar.gz
mysql-5.7.40-linux-glibc2.12-x86_64 onekey_install_mysql_binary_v3.sh
三、执行脚本
[root@jd-mysql-2 ~]# time bash onekey_install_mysql_binary_v3.sh
已加载插件:fastestmirror
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
软件包 cmake-2.8.12.2-2.el7.x86_64 已安装并且是最新版本
软件包 ncurses-devel-5.9-14.20130511.el7_4.x86_64 已安装并且是最新版本
软件包 gcc-4.8.5-44.el7.x86_64 已安装并且是最新版本
软件包 gcc-c++-4.8.5-44.el7.x86_64 已安装并且是最新版本
软件包 2:vim-enhanced-7.4.629-8.el7_9.x86_64 已安装并且是最新版本
软件包 lsof-4.87-6.el7.x86_64 已安装并且是最新版本
软件包 bzip2-1.0.6-13.el7.x86_64 已安装并且是最新版本
软件包 1:openssl-devel-1.0.2k-26.el7_9.x86_64 已安装并且是最新版本
没有可用软件包 ncurses-compat-libs。
无须任何处理
Redirecting to /bin/systemctl stop firewalld.service
Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
Starting MySQL.Logging to '/data/mysql/jd-mysql-2.err'.
SUCCESS!
mysql: [Warning] Using a password on the command line interface can be insecure.
mysql: [Warning] Using a password on the command line interface can be insecure.
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
real 0m22.860s
user 0m4.434s
sys 0m20.862s
执行完成,显示出这个 表 说明安装成功,一切顺利。
这时候,你需要去明白脚本里的代码,去仔细看看和理解,比如你的密码是‘Jiangda123#’
进入mysql:mysql -uroot -p’Jiangda123#’
[root@jd-mysql-2 ~]# mysql -uroot -p'Jiangda123#'
在mysql里查看shell进程:
root@(none) 15:57 mysql>system ps aux|grep mysqld
root 8882 0.0 0.0 11824 1616 pts/0 S 15:50 0:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/data/mysql --pid-file=/data/mysql/jd-mysql-2.pid
mysql 9036 0.1 11.0 1610256 205220 pts/0 Sl 15:50 0:00 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=jd-mysql-2.err --open-files-limit=8192 --pid-file=/data/mysql/jd-mysql-2.pid --socket=/data/mysql/mysql.sock --port=3306
root 9137 0.0 0.0 113280 1216 pts/0 S+ 15:57 0:00 sh -c ps aux|grep mysqld
root 9139 0.0 0.0 112824 968 pts/0 S+ 15:57 0:00 grep mysqld
建库:
root@(none) 16:01 mysql>create database jd;
Query OK, 1 row affected (0.00 sec)
看库:
root@(none) 16:03 mysql>show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| jd |
| jiangda |
| mysql |
| performance_schema |
| sys |
+--------------------+
6 rows in set (0.00 sec)
在jd库里建表和查看表的详细字段等信息:
root@(none) 16:05 mysql>use jd
Database changed
root@jd 16:05 mysql>create table student_info(id int,name varchar(20),sex char(1));
Query OK, 0 rows affected (0.01 sec)
root@jd 16:05 mysql>desc student_info;
+-------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------+-------------+------+-----+---------+-------+
| id | int(11) | YES | | NULL | |
| name | varchar(20) | YES | | NULL | |
| sex | char(1) | YES | | NULL | |
+-------+-------------+------+-----+---------+-------+
3 rows in set (0.00 sec)
以指定文件Socket方式登录:mysql -uroot -p'Jiangda123#' -S /data/mysql/mysql.sock
[root@jd-mysql-2 mysql]# mysql -uroot -p'Jiangda123#' -S /data/mysql/mysql.sock
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.40 MySQL Community Server (GPL)
Copyright (c) 2000, 2022, Oracle and/or its affiliates.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
root@(none) 16:44 mysql>exit
Bye
用另一台ip为192.168.1.150的linux的机器,和本机Windows机器去访问数据库,其中windows用Navicat
首先,在mysql服务器上进入mysql创建用户并授权:
create user 'jd'@'%' identified by '123456';
grant all on *.* to 'jd'@'%';
*.* 第一个*代表所有的库,第2个*代表库里的所有的表。
然后,在第二天linux机器连接:(成功)
mysql -u'jd' -p'123456' -h 192.168.1.151 -P'3306'
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 5
Server version: 5.7.40 MySQL Community Server (GPL)
Copyright (c) 2000, 2022, Oracle and/or its affiliates.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
jd@(none) 16:56 mysql>show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| jd |
| jiangda |
| mysql |
| performance_schema |
| sys |
+--------------------+
6 rows in set (0.00 sec)
在windows,打开navicat:
新建连接:
成功:
在linux里看被哪些机器连接可以用‘w’命令,在MySQL里可以用show processlist;
看哪些机器连接了我的MySQL数据库:
root@(none) 16:59 mysql>show processlist;
+----+------+---------------------+------+---------+------+----------+------------------+
| Id | User | Host | db | Command | Time | State | Info |
+----+------+---------------------+------+---------+------+----------+------------------+
| 4 | root | localhost | NULL | Query | 0 | starting | show processlist |
| 5 | jd | 192.168.1.150:35102 | NULL | Sleep | 3145 | | NULL |
| 7 | jd | 192.168.1.45:59522 | NULL | Sleep | 2665 | | NULL |
+----+------+---------------------+------+---------+------+----------+------------------+
3 rows in set (0.01 sec)
等我学完这一系列(或者问题积累多了),我会出总结篇的!!!