Centos7.5无网络安装mysql5.6
Centos7.5无网络安装mysql5.6 rpm 包
关于mysql就不做过多介绍了，话不多说直接开整
下载mysql rpm包
此处为了方便大家笔者提供了官网和百度网盘下载两种方式
官网地址
https://dev.mysql.com/get/Downloads/MySQL-5.6/MySQL-client-5.6.44-1.el7.x86_64.rpm
https://dev.mysql.com/get/Downloads/MySQL-5.6/MySQL-server-5.6.44-1.el7.x86_64.rpm
百度网盘
链接：https://pan.baidu.com/s/1hz28fK2jfUXg7CiIQzAb2g
提取码：gc1n
复制这段内容后打开百度网盘手机App，操作更方便哦
将下载的rpm包上传到服务器并安装启动
[root@localhost ~]# ll | grep MySQL
-rw-r--r-- 1 root root 20460600 7月 5 13:23 MySQL-client-5.6.44-1.el7.x86_64.rpm
-rw-r--r-- 1 root root 62822796 7月 5 11:37 MySQL-server-5.6.44-1.el7.x86_64.rpm
[root@localhost ~]# rpm -ivh MySQL-server-5.6.44-1.el7.x86_64.rpm --force
警告：MySQL-server-5.6.44-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
准备中... ################################# [100%]
正在升级/安装...
1:MySQL-server-5.6.44-1.el7 ################################# [100%]
警告：用户mysql 不存在 - 使用root
警告：群组mysql 不存在 - 使用root
警告：用户mysql 不存在 - 使用root
警告：群组mysql 不存在 - 使用root
....警告可以忽略等到输出配置完成即可
WARNING: Default config file /etc/my.cnf exists on the system
This file will be read by default by the MySQL server
If you do not want to use this, either remove it, or use the
--defaults-file argument to mysqld_safe when starting the server
只要没有致命错误都可以忽略
[root@localhost ~]# rpm -ivh MySQL-client-5.6.44-1.el7.x86_64.rpm
启动mysql
[root@localhost ~]# mkdir -pv /var/log/mariadb/ //创建日志文件和路径
mkdir: 已创建目录 "/var/log/mariadb/"
[root@localhost ~]# touch /var/log/mariadb/mariadb.log
[root@localhost ~]# systemctl start mysql
[root@localhost ~]# systemctl status mysql
● mysql.service - LSB: start and stop MySQL
Loaded: loaded (/etc/rc.d/init.d/mysql; bad; vendor preset: disabled)
Active: active (running) since 五 2019-07-05 15:01:20 CST; 17s ago
Docs: man:systemd-sysv-generator(8)
Process: 2550 ExecStart=/etc/rc.d/init.d/mysql start (code=exited, status=0/SUCCESS)
Tasks: 22
CGroup: /system.slice/mysql.service
├─2558 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-file=/var/lib/mysql/localhost.localdomain.pid
└─2720 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/log/mariadb/mariadb.log --pid-file=/var/lib/mysql/localhost.localdomain.pid --socket=/var/lib/mysql/mysql.sock
7月 05 15:01:13 localhost.localdomain systemd[1]: Starting LSB: start and stop MySQL...
7月 05 15:01:20 localhost.localdomain mysql[2550]: Starting MySQL...... SUCCESS!
7月 05 15:01:20 localhost.localdomain systemd[1]: Started LSB: start and stop MySQL.
[root@localhost ~]# netstat -lnpt | grep 3306
tcp6 0 0 :::3306 :::* LISTEN 2720/mysqld
[root@localhost ~]# ps uax | grep mysql
root 2558 0.0 0.0 115432 1704 ? S 15:01 0:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-file=/var/lib/mysql/localhost.localdomain.pid
mysql 2720 14.2 11.6 1302952 449364 ? Sl 15:01 0:05 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/log/mariadb/mariadb.log --pid-file=/var/lib/mysql/localhost.localdomain.p
id --socket=/var/lib/mysql/mysql.sockroot 2768 0.0 0.0 112720 984 pts/0 S+ 15:01 0:00 grep --color=auto mysql
mysql启动成功
设置mysql密码并连接
1.安装完成后在家目录下找到这个文件最后就是密码
[root@localhost ~]# cat .mysql_secret
# The random password set for the root user at Fri Jul 5 14:57:11 2019 (local time): T2GIX_P9rz_hSSjb
[root@localhost ~]# mysql -uroot -pT2GIX_P9rz_hSSjb
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 1
Server version: 5.6.44
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
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.
mysql> use mysql //默认密码进入sql报错需要设置密码
ERROR 1820 (HY000): You must SET PASSWORD before executing this statement
mysql> set password = password ('mslinux'); //（‘新密码’）
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges; //刷新权限
Query OK, 0 rows affected (0.00 sec)
mysql> \q
Bye
[root@localhost ~]# mysql -uroot -pmslinux //新密码登录测试
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: 5.6.44 MySQL Community Server (GPL)
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
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.
mysql> use mysql //sql语句测试
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.00 sec)
mysql> \q
Bye
mysql安装完成
2.破解root密码
笔者在Centos7.3环境中遇到安装完成没有.mysql_secret这个文件这个就需要破解密码了。同样该方法也适用密码忘记的情况下使用
修改my.cnf跳过密码验证
[root@localhost ~]# egrep -v '^#|^$' /etc/my.cnf
[mysqld]
skip-grant-tables //在mysqld下添加跳过认证
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
symbolic-links=0
[mysqld_safe]
log-error=/var/log/mariadb/mariadb.log
pid-file=/var/run/mariadb/mariadb.pid
!includedir /etc/my.cnf.d
重启mysql
[root@localhost ~]# systemctl restart mysql
[root@localhost ~]# mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.6.44 MySQL Community Server (GPL)
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
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.
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 -A
Database changed
mysql> update user set authentication_string=password('mslinux') where user='root';
Query OK, 4 rows affected (0.01 sec)
Rows matched: 4 Changed: 4 Warnings: 0
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> \q
Bye
[root@localhost ~]# mysql //退出数据库后在使用mysql就无法登陆了，包括使用错误密码
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
[root@localhost ~]# mysql -uroot -p123456
Warning: Using a password on the command line interface can be insecure.
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
[root@localhost ~]# mysql -u root -pmslinux
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 4
Server version: 5.6.44 MySQL Community Server (GPL)
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
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.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.00 sec)
mysql> \q
Bye
密码破解成功
注意：此时需要将/etc/my.cnf中 skip-grant-tables注释掉避免以后因为项目等重启数据库后自动跳过认证，修改完成后重启数据库即可。
加油！方法总比问题多！！