/etc/sysconfig/iptables # Generated by iptables-save v1.4.7 on Tue Mar 20 15:05:33 2018*filter:INPUT DROP [1668:74260]:FORWARD DROP [0:0]:OUTPUT DROP [48:2388]-A INPUT -p tcp -m tcp --sport 3306 -j ACCEPT -A INPUT -s 123.249.24.233/32 -j DROP -A INPU