虚拟机安装mysql-8.0.25-linux-xxx.tar.xz(未完待续)

2021/9/9 19:34:09

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安装出现的问题:

1.启动mysql,输入密码错误导致的报错:

ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

解决:https://blog.csdn.net/qq_36228916/article/details/99632783

改mysql密码:

[root@mas /]# mysql -u root -p

mysql> use mysql;
mysql> update user set password=password(“你的新密码”) where user=“root”;
mysql> flush privileges;

mysql>exit;

更多方式:https://www.cnblogs.com/peashooter/archive/2018/08/10/9456255.html

2.配置文件出错导致的异常:

mysql: [ERROR] unknown variable 'symbolic-links=0'.

 解决:

查看my.cnf文件,文件中

# Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0

应该是分两行展示了,修改该行为一行显示

3.my.cnf 配置文件中设置了 [mysqld] 的参数 socket ,而没有设置[client]的参数socket:

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

解决:添加 [client] 配置项,如下所示

 4.启动mysql报错:mysqld_safe error: log-error set to /var/log/mariadb/mariadb.log

解决:

mkdir /var/log/mariadb

touch /var/log/mariadb/mariadb.log

# 用户组及用户

chown -R mysql:mysql /var/log/mariadb/

/usr/local/mysql/support-files/mysql.server start

5.navicat连接数据库失败(1):

can't connect to mysql server on localhost(10060)

原因:防火墙的问题,3306端口没有开放

解决:开放3306端口或者关闭防火墙,命令如下

1:查看防火状态

systemctl status firewalld(方式一)

service  iptables status(方式二)

2:暂时关闭防火墙

systemctl stop firewalld

service  iptables stop

3:永久关闭防火墙

systemctl disable firewalld

chkconfig iptables off

4:重启防火墙

systemctl enable firewalld

service iptables restart  
6.navicat连接数据库失败(2):

1130-host 'xxx' is not allowed to connect to this mysql server

解决:

1.修改user表中的Host:update user set Host='%' where User='root';

 2.最后刷新一下:flush privileges;

 原文链接:https://www.cnblogs.com/asplover/p/13966533.html

学习:虚拟机CENTOS7下 安装8.0版本MySQL MySQL主从配置详细~

https://blog.csdn.net/weixin_42859280/article/details/84587330



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