Ok,
thank you for your answers. I will try to sum up mine.
It is true that it is not me who wrote the firewall script and that
I do not understand what all rules do.
I tried different solutions that you proposed but none works, from
localhost, local network or from the internet. The 8080 port remains
closed. i did not try to upgrade my kernel. Actually, I am a little
bit frightened to this idea. is it really riskless ?
Finally this is the result of 'iptables -t filter -L -n -v' command:
Chain INPUT (policy DROP 17 packets, 1088 bytes)
pkts bytes target prot opt in out source
destination
1 64 ACCEPT tcp -- eth0 * 0.0.0.0/0
0.0.0.0/0 tcp dpt:8080
225 18816 bad_tcp_packets tcp -- * *
0.0.0.0/0 0.0.0.0/0
0 0 ACCEPT tcp -- eth1 * 192.168.0.3
0.0.0.0/0 tcp dpt:22
0 0 ACCEPT tcp -- eth1 * 192.168.0.12
0.0.0.0/0 tcp dpt:22
0 0 ACCEPT tcp -- eth1 * 192.168.0.31
0.0.0.0/0 tcp dpt:22
0 0 ACCEPT tcp -- eth1 * 192.168.0.28
0.0.0.0/0 tcp dpt:22
0 0 REJECT tcp -- eth1 * 0.0.0.0/0
0.0.0.0/0 tcp dpt:22 reject-with icmp-port-unreachable
162 18088 ACCEPT all -- eth1 * 192.168.0.0/24
0.0.0.0/0
10 1219 ACCEPT all -- lo * 127.0.0.1
0.0.0.0/0
4 156 ACCEPT all -- lo * 192.168.0.1
0.0.0.0/0
8 528 ACCEPT all -- lo * 193.51.128.146
0.0.0.0/0
0 0 ACCEPT udp -- eth1 * 0.0.0.0/0
0.0.0.0/0 udp spts:67:68 dpts:67:68
140 10422 ACCEPT all -- * * 0.0.0.0/0
193.51.128.146 state RELATED,ESTABLISHED
20 1280 tcp_packets tcp -- eth0 *
0.0.0.0/0 0.0.0.0/0
0 0 udp_packets udp -- eth0 *
0.0.0.0/0 0.0.0.0/0
10 640 icmp_packets icmp -- eth0 *
0.0.0.0/0 0.0.0.0/0
0 0 DROP all -- eth0 * 0.0.0.0/0
224.0.0.0/8
3 192 LOG all -- * * 0.0.0.0/0
0.0.0.0/0 limit: avg 3/min burst 3 LOG flags 0 level 7
prefix `IPT INPUT packet died: '
Chain FORWARD (policy DROP 0 packets, 0 bytes)
pkts bytes target prot opt in out source
destination
0 0 bad_tcp_packets tcp -- * *
0.0.0.0/0 0.0.0.0/0
2 152 ACCEPT all -- eth1 * 0.0.0.0/0
0.0.0.0/0
2 152 ACCEPT all -- * * 0.0.0.0/0
0.0.0.0/0 state RELATED,ESTABLISHED
0 0 LOG all -- * * 0.0.0.0/0
0.0.0.0/0 limit: avg 3/min burst 3 LOG flags 0 level 7
prefix `IPT FORWARD packet died: '
Chain OUTPUT (policy DROP 0 packets, 0 bytes)
pkts bytes target prot opt in out source
destination
169 22018 bad_tcp_packets tcp -- * *
0.0.0.0/0 0.0.0.0/0
10 1219 ACCEPT all -- * * 127.0.0.1
0.0.0.0/0
166 16632 ACCEPT all -- * * 192.168.0.1
0.0.0.0/0
120 16559 ACCEPT all -- * * 193.51.128.146
0.0.0.0/0
0 0 LOG all -- * * 0.0.0.0/0
0.0.0.0/0 limit: avg 3/min burst 3 LOG flags 0 level 7
prefix `IPT OUTPUT packet died: '
Chain allowed (20 references)
pkts bytes target prot opt in out source
destination
3 192 ACCEPT tcp -- * * 0.0.0.0/0
0.0.0.0/0 tcp flags:0x16/0x02
0 0 ACCEPT tcp -- * * 0.0.0.0/0
0.0.0.0/0 state RELATED,ESTABLISHED
0 0 DROP tcp -- * * 0.0.0.0/0
0.0.0.0/0
Chain bad_tcp_packets (3 references)
pkts bytes target prot opt in out source
destination
0 0 REJECT tcp -- * * 0.0.0.0/0
0.0.0.0/0 tcp flags:0x12/0x12 state NEW reject-with tcp-reset
1 40 LOG tcp -- * * 0.0.0.0/0
0.0.0.0/0 tcp flags:!0x16/0x02 state NEW LOG flags 0 level 4
prefix `New not syn:'
1 40 DROP tcp -- * * 0.0.0.0/0
0.0.0.0/0 tcp flags:!0x16/0x02 state NEW
Chain icmp_packets (1 references)
pkts bytes target prot opt in out source
destination
10 640 ACCEPT icmp -- * * 0.0.0.0/0
0.0.0.0/0 icmp type 8
0 0 ACCEPT icmp -- * * 0.0.0.0/0
0.0.0.0/0 icmp type 11
Chain tcp_packets (1 references)
pkts bytes target prot opt in out source
destination
0 0 allowed tcp -- * * 0.0.0.0/0
0.0.0.0/0 tcp dpt:21
0 0 allowed tcp -- * * 0.0.0.0/0
0.0.0.0/0 tcp dpts:51000:52000
0 0 allowed tcp -- eth0 * 195.221.162.126
0.0.0.0/0 tcp dpt:22
0 0 allowed tcp -- eth0 * 81.57.83.190
0.0.0.0/0 tcp dpt:22
0 0 allowed tcp -- eth0 * 193.52.24.125
0.0.0.0/0 tcp dpt:22
0 0 allowed tcp -- eth0 * 129.175.58.218
0.0.0.0/0 tcp dpt:22
0 0 allowed tcp -- eth0 * 82.230.68.31
0.0.0.0/0 tcp dpt:22
0 0 allowed tcp -- eth0 * 82.246.152.215
0.0.0.0/0 tcp dpt:22
0 0 allowed tcp -- eth0 * 86.67.133.75
0.0.0.0/0 tcp dpt:22
0 0 allowed tcp -- eth0 * 88.171.133.128
0.0.0.0/0 tcp dpt:22
0 0 allowed tcp -- eth0 * 157.136.22.133
0.0.0.0/0 tcp dpt:22
0 0 allowed tcp -- eth0 * 129.104.48.4
0.0.0.0/0 tcp dpt:22
0 0 allowed tcp -- eth0 * 129.104.48.5
0.0.0.0/0 tcp dpt:22
0 0 allowed tcp -- eth0 * 129.104.48.3
0.0.0.0/0 tcp dpt:22
0 0 LOG tcp -- eth0 * 0.0.0.0/0
0.0.0.0/0 tcp dpt:22 LOG flags 0 level 7 prefix `IPT INPUT
SSH FORBIDDEN: '
1 64 allowed tcp -- eth0 * 0.0.0.0/0
0.0.0.0/0 tcp dpt:80
2 128 allowed tcp -- eth0 * 0.0.0.0/0
0.0.0.0/0 tcp dpt:443
0 0 allowed tcp -- eth0 * 0.0.0.0/0
0.0.0.0/0 multiport ports 143,993,110,995
0 0 allowed tcp -- eth0 * 0.0.0.0/0
0.0.0.0/0 tcp dpt:53
0 0 allowed tcp -- eth0 * 0.0.0.0/0
0.0.0.0/0 tcp dpt:25
0 0 allowed tcp -- * * 0.0.0.0/0
0.0.0.0/0 tcp dpt:113
Chain udp_packets (1 references)
pkts bytes target prot opt in out source
destination
0 0 REJECT udp -- eth0 * 0.0.0.0/0
0.0.0.0/0 udp dpt:515 reject-with icmp-port-unreachable
0 0 DROP udp -- eth0 * 0.0.0.0/0
193.51.128.151 multiport ports 513,631
0 0 ACCEPT udp -- * * 0.0.0.0/0
0.0.0.0/0 udp dpt:123
0 0 ACCEPT udp -- * * 0.0.0.0/0
0.0.0.0/0 udp dpt:443
0 0 ACCEPT udp -- eth0 * 0.0.0.0/0
0.0.0.0/0 multiport ports 143,993,110,995
0 0 ACCEPT udp -- * * 0.0.0.0/0
0.0.0.0/0 udp dpt:53
0 0 ACCEPT udp -- * * 0.0.0.0/0
0.0.0.0/0 udp dpt:10000
0 0 DROP udp -- eth0 * 0.0.0.0/0
193.51.128.151 udp dpts:135:139
0 0 DROP udp -- eth0 * 0.0.0.0/0
255.255.255.255 udp dpts:67:68
Joan
_________________
Post-doc GENNETEC
Programme d'Épigénomique, Genopole®
Tour Évry2, 10è étage
523 Terrasses de l'Agora
91034 ÉVRY cedex
Tél : +33 (0)1 69 47 44 34
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epigenomique/en/perso/joe/
________________________________________________________________________
Le 7 juin 07 à 16:51, Németh Tamás a écrit :
'iptables -t filter -L -n -v
