mysql Lost connection to MySQL server at ‘reading initial communication packet

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mysql 爆出，本地连接正常，远程链接无法链接，爆出错误
Lost connection to MySQL server at ‘reading initial communication packet

大量无法远程链接的问题
1.iptables 导致 看看iptables -L

2.mysqld 下增加
skip-name-resolve
我加了发现不行
看下面

3.bind-adress
我发现mysqld 还有一句

bind-address = ::ffff:127.0.0.1

[mysqld]#bind-address = ::ffff:127.0.0.1local-infile=0datadir=/var/lib/mysqlsocket=/var/lib/mysql/mysql.sock# Disabling symbolic-links is recommended to prevent assorted security riskssymbolic-links=0# Settings user and group are ignored when systemd is used.# If you need to run mysqld under a different user or group,# customize your systemd unit file for mariadb according to the# instructions in http://fedoraproject.org/wiki/Systemdskip-name-resolve