centos7 telnet访问mysql出错Connection closed by foreign host
类似以下错误
YB|m0A9mysql_native_passwordpackets out of orderConnection closed by foreign host
执行命令：getsebool -a|grep httpd
发现
httpd_can_network_connect off
解决：
setsebool httpd_can_network_connect 1
setsebool httpd_can_network_connect_cobbler 1
setsebool httpd_can_network_connect_db 1
setsebool httpd_can_network_relay 1
需要重新系统
reboot
shutdown -r now
ps：centos中apache运行php需要连接mysql一直连不上，
后来telnet发现端口能连但返回结果很怪异
下边这个相关资源是csdn强制性加的，和本博主无关，无法取消，请勿点击
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