1
I have a PC with two Ethernet cards, and I was trying to configure my eth1, but when I typed $ iptables -F INPUT
, the internet was gone on eth0. Does anyone has any idea how to get my internet connection back? I tried $iptables-restore /etc/sysconfig/iptables
but it doesn't work.
My OS is fedora 17, x32 edition.
Update 1
nothing changed after reboot; i am connected to the network but no internet connection
PS: p4p1=eth0 PS: p3p1=eth1
$iptables -nL | grep Chain
Chain INPUT (policy ACCEPT)
Chain FORWARD (policy ACCEPT)
Chain OUTPUT (policy ACCEPT)
iptables -nvL
Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT udp -- virbr0 * 0.0.0.0/0 0.0.0.0/0 udp dpt:53
0 0 ACCEPT tcp -- virbr0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:53
0 0 ACCEPT udp -- virbr0 * 0.0.0.0/0 0.0.0.0/0 udp dpt:67
0 0 ACCEPT tcp -- virbr0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:67
646 57716 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0
646 39724 ACCEPT all -- lo * 0.0.0.0/0 0.0.0.0/0
0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
1826 153K REJECT all -- * * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
0 0 all -- * * 0.0.0.0/0 0.0.0.0/0
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 0
0 0 ACCEPT tcp -- eth0 * 0.0.0.0/0 0.0.0.0/0 multiport dports 80,443
0 0 ACCEPT tcp -- p4p1 * 0.0.0.0/0 0.0.0.0/0 multiport sports 80,443 state RELATED,ESTABLISHED
0 0 ACCEPT tcp -- p4p1 * 0.0.0.0/0 0.0.0.0/0 multiport dports 80,443
0 0 ACCEPT tcp -- p4p1 * 0.0.0.0/0 0.0.0.0/0 multiport sports 80,443 state RELATED,ESTABLISHED
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 0
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 0
0 0 ACCEPT udp -- p4p1 * 0.0.0.0/0 0.0.0.0/0 udp spt:53
0 0 LOG all -- * * 0.0.0.0/0 0.0.0.0/0 LOG flags 0 level 4
0 0 LOG all -- * * 0.0.0.0/0 0.0.0.0/0 LOG flags 0 level 4
0 0 ACCEPT tcp -- p4p1 * 0.0.0.0/0 0.0.0.0/0 multiport sports 80,443 state RELATED,ESTABLISHED
Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT all -- * virbr0 0.0.0.0/0 192.168.122.0/24 state RELATED,ESTABLISHED
0 0 ACCEPT all -- virbr0 * 192.168.122.0/24 0.0.0.0/0
0 0 ACCEPT all -- virbr0 virbr0 0.0.0.0/0 0.0.0.0/0
0 0 REJECT all -- * virbr0 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable
0 0 REJECT all -- virbr0 * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable
0 0 REJECT all -- * * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT 250 packets, 20540 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 8
0 0 ACCEPT tcp -- * p4p1 0.0.0.0/0 0.0.0.0/0 multiport dports 80,443
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 8
0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 8
0 0 ACCEPT udp -- * p4p1 0.0.0.0/0 0.0.0.0/0 udp dpt:53
0 0 ACCEPT tcp -- * p4p1 0.0.0.0/0 0.0.0.0/0 multiport dports 80,443
--END--
The -F option pretty much flushed out all your INPUT rules. I agree with Aaron below that a reboot may restore your default chains. – slafat01 – 2012-10-02T12:41:33.100