最开始登陆直接报错 我的远程登陆系统是Mac os

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nancylulululudeMacBook-Air:bin nancy$ MySQL -h 172.16.158.132 -u root -p

Enter password: 

ERROR 2003 (HY000): Can't connect to MySQL server on '172.16.158.132' (61)

能ping通 

nancylulululudeMacBook-Air:bin nancy$ ping 172.16.158.132

PING 172.16.158.132 (172.16.158.132): 56 data bytes

64 bytes from 172.16.158.132: icmp_seq=0 ttl=64 time=1.361 ms

64 bytes from 172.16.158.132: icmp_seq=1 ttl=64 time=1.622 ms

64 bytes from 172.16.158.132: icmp_seq=2 ttl=64 time=0.399 ms

应该是端口问题

登陆mysql服务器

查看mysql端口

[root@nancycici src]# netstat -apn | grep 3306

tcp6       0      0 :::3306                 :::*                    LISTEN      36866/mysqld        

查看端口防火墙

[root@nancycici src]# firewall-cmd --query-port=3306/tcp

no

修改端口

[root@nancycici src]# firewall-cmd --zone=public --add-port=3306/tcp --permanent 

success

[root@nancycici src]# firewall-cmd --query-port=3306/tcp

no

重新加载

[root@nancycici src]# firewall-cmd --reload

success

[root@nancycici src]# firewall-cmd --query-port=3306/tcp

yes

客户端登陆成功

nancylulululudeMacBook-Air:bin nancy$ mysql -h 172.16.158.132   -u root -p

Enter password: 

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 24

Server version: 5.7.25 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.

-D 登陆数据库

mysql -h 172.16.158.132 -D nancyuser  -u root -p

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