After installation, the remote connection reports an error:

2003- cannot connect to mysql server on ‘10.10.1.202’(10060 “Unknown error”)

Solution:

Open 3306 ports

firewall-cmd --zone=public --add-port=3306/tcp --permanent
#Command Meaning
--zone #Role 
--add-port=3306/tcp #Add a port in the format of: port/communication protocol 
--permanent #Permanent

Restart the firewall

systemctl restart firewalld.servic

perhaps

 service firewalld restart

perhaps

firewall-cmd --reload

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