适用于DNS的iptables规则

# cat /etc/sysconfig/iptables
# Generated by iptables-save v1.3.5 on Thu Oct 31 15:53:45 2013    
*filter    
:INPUT ACCEPT [0:0]    
:FORWARD ACCEPT [0:0]    
:OUTPUT ACCEPT [25144:3493694]    
:RH-Firewall-1-INPUT – [0:0]    
-A INPUT -p udp -m udp –sport 53 -j ACCEPT    
-A INPUT -p tcp -m tcp –sport 53 -j ACCEPT

-A INPUT -j RH-Firewall-1-INPUT    
-A FORWARD -j RH-Firewall-1-INPUT    
-A RH-Firewall-1-INPUT -i lo -j ACCEPT    
-A RH-Firewall-1-INPUT -p icmp -m icmp –icmp-type any -j ACCEPT    
-A RH-Firewall-1-INPUT -p esp -j ACCEPT    
-A RH-Firewall-1-INPUT -p ah -j ACCEPT    
-A RH-Firewall-1-INPUT -d 224.0.0.251 -p udp -m udp –dport 5353 -j ACCEPT    
-A RH-Firewall-1-INPUT -m state –state RELATED,ESTABLISHED -j ACCEPT    
-A RH-Firewall-1-INPUT -p tcp -m state –state NEW -m tcp –dport 22 -j ACCEPT    
-A RH-Firewall-1-INPUT -p tcp -m state –state NEW -m tcp –dport 21 -j ACCEPT    
-A RH-Firewall-1-INPUT -p tcp -m state –state NEW -m tcp –dport 80 -j ACCEPT    
-A RH-Firewall-1-INPUT -p tcp -m state –state NEW -m tcp –dport 8080 -j ACCEPT    
-A RH-Firewall-1-INPUT -p tcp -m state –state NEW -m tcp –dport 20000:20500 -j ACCEPT    
-A RH-Firewall-1-INPUT -j REJECT –reject-with icmp-host-prohibited    
COMMIT    
# Completed on Thu Oct 31 15:53:45 2013    
# cat /etc/sysconfig/iptables.save
# Firewall configuration written by system-config-securitylevel    
# Manual customization of this file is not recommended.    
*filter    
:FORWARD ACCEPT [0:0]    
:INPUT ACCEPT [0:0]    
:RH-Firewall-1-INPUT – [0:0]    
:OUTPUT ACCEPT [0:0]    
-A INPUT -j RH-Firewall-1-INPUT    
-A FORWARD -j RH-Firewall-1-INPUT    
-A RH-Firewall-1-INPUT -i lo -j ACCEPT    
-A RH-Firewall-1-INPUT -p icmp –icmp-type any -j ACCEPT    
-A RH-Firewall-1-INPUT -p 50 -j ACCEPT    
-A RH-Firewall-1-INPUT -p 51 -j ACCEPT    
-A RH-Firewall-1-INPUT -p udp -d 224.0.0.251 –dport 5353 -j ACCEPT    
-A RH-Firewall-1-INPUT -m state –state ESTABLISHED,RELATED -j ACCEPT    
-A RH-Firewall-1-INPUT -p tcp -m state -m tcp –dport 22 –state NEW -j ACCEPT    
-A RH-Firewall-1-INPUT -p tcp -m state -m tcp –dport 21 –state NEW -j ACCEPT    
-A RH-Firewall-1-INPUT -p tcp -m state -m tcp –dport 80 –state NEW -j ACCEPT    
-A RH-Firewall-1-INPUT -p tcp -m state -m tcp –dport 8080 –state NEW -j ACCEPT    
-A RH-Firewall-1-INPUT -p tcp -m state -m tcp –dport 20000:20500 –state NEW -j ACCEPT    
-A RH-Firewall-1-INPUT -j REJECT –reject-with icmp-host-prohibited    
COMMIT    
#

原创文章,作者:UWYAR,如若转载,请注明出处:https://www.wangzhanshi.com/n/14002.html

(0)
UWYAR的头像UWYAR
上一篇 2025年1月1日 17:04:58
下一篇 2025年1月1日 17:05:00

相关推荐

发表回复

登录后才能评论