痞客興的部落格

# 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 -i lo -j ACCEPT

## 公司內網 ICMP
-A INPUT -s 192.168.0.0/24 -p icmp -j ACCEPT

## 公司網段及IDC內網 SSH
-A INPUT -m state --state NEW -s  192.168.0.0/24 -m tcp -p tcp --dport 22 -j ACCEPT

## MySQL DB
-A INPUT -m state --state NEW -s 192.168.0.0/24 -m tcp -p tcp --dport 3306 -j ACCEPT


## cacti snmp
-A INPUT -s 192.168.0.0/24 -m udp -p udp --dport 161 -j ACCEPT

## drop all icmp
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited

## DROP ALL 放最後一行
-A INPUT -m state --state NEW,INVALID -j DROP
COMMIT