RHEL5.6--IPTABLES简单配置
1、
#!bin/bash
for i in net filter mangle
do
iptables -t $i -F
iptables -t $i -X
done
iptables -t filter INPUT -p tcp -s 192.168.0.1 --dport 110 -j ACCEPT
iptables -t filter INPUT -p tcp -s 192.168.0.2 --dport 110 -j ACCEPT
iptables -t filter INPUT -p tcp -s 192.168.0.0/24 --dport 110 -j REJECT
2、
#!bin/bash
for i in net filter mangle
do
iptables -t $i -F
iptables -t $i -X
done
iptables -A INPUT -s 192.168.0.11 -j ACCEPT
iptables -A OUTPUT -s 192.168.0.11 -j ACCEPT
iptables -A INPUT -s 127.0.0.1 -j ACCEPT
iptables -A OUTPUT -s 127.0.0.1 -j ACCEPT
iptables -P INPUT REJECT
iptables -P OUTPUT REJECT
3、
#!bin/bash
for i in net filter mangle
do
iptables -t $i -F
iptables -t $i -X
done
iptables -A INPUT -s 192.168.0.1 --dport 23 -j ACCEPT
iptables -A INPUT -s 192.168.0.2 --dport 23 -j ACCEPT
iptables -A INPUT --dport 23 -j REJECT
4、
#!bin/bash
for i in net filter mangle
do
iptables -t $i -F
iptables -t $i -X
done
iptables -A INPUT -s 192.168.0.1 -p icmp --icmp-type 8 -m limit --limit 1/m ACCEPT
iptables -A INPUT -s 192.168.0.2 -p icmp --icmp-type 8 -m limit --limit 1/m ACCEPT
5、
#!bin/bash
for i in net filter mangle
do
iptables -t $i -F
iptables -t $i -X
done
iptables -A INPUT -p tcp --tcp-flags SYN,ACK,RST SYN -j REJECT
iptables -A OUTPUT -p tcp --tcp-flags SYN,ACK,RST SYN -j ACCEPT
6、
#!bin/bash
for i in net filter mangle
do
iptables -t $i -F
iptables -t $i -X
done
iptables -A OUTPUT -p icmp --icmp-type 8 -j ACCEPT
iptables -P OUTPUT REJECT
7、
#!bin/bash
for i in net filter mangle
do
iptables -t $i -F
iptables -t $i -X
done
iptables -A INPUT -s text02 -j ACCEPT
iptables -P OUTPUT REJECT
8、
#!bin/bash
for i in net filter mangle
do
iptables -t $i -F
iptables -t $i -X
done
iptables -A INPUT --dport 23 -j LOG --log-level info --log-prefix "iptables"