linux mysql8 端口號為 0 port mysql8 遠程連接失敗 2003 can't mysql connect

1.系統版本，mysql版本：

 

 

 一般情況下沒有如果是權限原因或者防火牆原因就不說了網上資料多的一塌糊塗  但是簡單說一下幾個命令：

#遠程連接授權
grant all privileges on *.* to 'root'@'%';
FLUSH PRIVILEGES;

#修改密碼
ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '密碼'; 
FLUSH PRIVILEGES;

2.查找my.cnf文件

mysql --help|grep my.cnf

 

 

 一般是按照/etc/my.cnf /etc/mysql/my.cnf /usr/local/mysql/etc/my.cnf ~/.my.cnf 

這個優先級來讀取的

3.my.cnf簡單參數設置：

[client]
port= 3306
socket = /usr/local/mysql/mysql.sock
default-character-set=utf8

[mysqld]
port= 3306
mysqlx=0
basedir = /usr/local/mysql
datadir = /usr/local/mysql/data
socket = /usr/local/mysql/mysql.sock
character-set-server=utf8
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
#skip-grant-tables #一定注意此參數 會影響下面參數是導致端口號為0的罪魁禍首
#skip-networking
bind-address = 0.0.0.0

[mysql]
port= 3306
default-character-set=utf8
socket = /usr/local/mysql/mysql.sock
bind-address = 0.0.0.0

 將

#skip-grant-tables  注釋掉后端口號就不為零 了 

#skip-networking 也要注釋掉

bind-address = 0.0.0.0 開放任意IP