Vim/etc/sysconfig/iptables

# Firewall configuration written by system-config-Firewall
# Manual customization of this file is not recommended.
* Filter
: Input accept [0: 0]
: Forward accept [0: 0]
: Output accept [0: 0]
-A input-M state -- State established, related-J accept
-A input-p icmp-J accept
-A input-I lo-J accept
-A input-M state -- state new-m tcp-p tcp -- dport 22-J accept
-A input-J reject -- reject-with ICMP-host-prohibited
-A forward-J reject -- reject-with ICMP-host-prohibited
Commit

The above is the initial value of the firewall setting file.

Which of the following needs to be added:

-A input-M state -- state new-m tcp-p tcp -- dport 80-J accept

-A input-M state -- state new-m tcp-p tcp -- dport 3306-J accept

-A input-s 115.28.46.84/32-p tcp-m tcp -- dport 3306-J accept // 115.28.46.84 is the slave database address

 

Vim/etc/sysconfig/iptables