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hello,
i have a little problem with my smtp server and
iptables rules.
here is my iptables config file:
echo 1 >
/proc/sys/net/ipv4/ip_forward
$IPTABLES -F $IPTABLES -X $IPTABLES -P INPUT DROP $IPTABLES -P OUTPUT ACCEPT $IPTABLES -P FORWARD DROP $IPTABLES -A INPUT -j ACCEPT -i $dev_inter -s 0/0
-d $firewall_intranet
$IPTABLES -A INPUT -j ACCEPT -i ppp0 -s
193.252.19.3 -d 0/0
$IPTABLES -A INPUT -j ACCEPT -i ppp0 -s
193.252.19.4 -d 0/0
$IPTABLES -A INPUT -j ACCEPT -i ppp0 -p tcp -s 0/0 -d $firewall_intranet --dport 110 $IPTABLES -A INPUT -j ACCEPT -i ppp0 -p tcp -s 0/0 -d $firewall_intranet --dport 25 $IPTABLES -A INPUT -j ACCEPT -p icmp -s 0/0 -d 0/0 $IPTABLES -A INPUT -j ACCEPT -s 0/0 -d 0/0 -i lo $IPTABLES -A INPUT -j ACCEPT -p tcp -s 192.168.0.0/24 -d 192.168.0.1/255.255.255.0 --dport 25 $IPTABLES -A INPUT -j ACCEPT -p tcp -s 0/0 -d
$firewall_intranet --dport 25
$IPTABLES -A FORWARD -j ACCEPT -i $dev_intra -o
ppp0 -s $intranet
$IPTABLES -A FORWARD -j ACCEPT -o $dev_intra -i ppp0 -s $any $IPTABLES -t nat -A POSTROUTING -o ppp0 -j
MASQUERADE
when i send a message to [EMAIL PROTECTED] my log says: netcourrier.com timeout on port
25
i have sniffed the communication: 0.000000
AStrasbourg-202-1-4-62.abo.wanadoo.fr -> mx0.grolier.fr TCP 1030 > smtp
[SYN] Seq=201347281 Ack=0 Win=5840 Len=0
0.006468 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> ns3.wanadoo.fr DNS Standard query PTR 62.160.13.80.in-addr.arpa 0.067191 mx0.grolier.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1030 [ACK] Seq=4233711057 Ack=201347282 Win=33304 Len=0 0.076136 ns3.wanadoo.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr DNS Standard query response PTR AStrasbourg-202-1-4-62.abo.wanadoo.fr 0.077104 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> ns3.wanadoo.fr DNS Standard query PTR 23.96.158.194.in-addr.arpa 0.166143 ns3.wanadoo.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr DNS Standard query response PTR mx0.grolier.fr 0.168981 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> ns3.wanadoo.fr DNS Standard query PTR 3.19.252.193.in-addr.arpa 0.235122 ns3.wanadoo.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr DNS Standard query response PTR ns3.wanadoo.fr 0.359970 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> netcourrier-1v.netcourrier.com TCP 1031 > smtp [SYN] Seq=203841264 Ack=0 Win=5840 Len=0 0.362137 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> ns3.wanadoo.fr DNS Standard query PTR 214.97.158.194.in-addr.arpa 0.422082 netcourrier-1v.netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1031 [ACK] Seq=2629543018 Ack=203841265 Win=33304 Len=0 0.434072 ns3.wanadoo.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr DNS Standard query response PTR netcourrier-1v.netcourrier.com 1.183943 mx0.grolier.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1030 [SYN, ACK] Seq=4233711056 Ack=201347282 Win=33304 Len=0 1.538875 netcourrier-1v.netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1031 [SYN, ACK] Seq=2629543017 Ack=203841265 Win=33304 Len=0 6.298196 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> ns3.wanadoo.fr DNS Standard query MX netcourrier.com 6.369058 ns3.wanadoo.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr DNS Standard query response MX 30 mx1.grolier.fr MX 10 netcourrier.com MX 20 mx0.grolier.fr 6.370304 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> ns3.wanadoo.fr DNS Standard query A netcourrier.com 6.437994 ns3.wanadoo.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr DNS Standard query response A 194.158.97.229 A 194.158.97.204 A 194.158.97.214 A 194.158.97.219 6.438848 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> ns3.wanadoo.fr DNS Standard query A mx0.grolier.fr 6.502975 ns3.wanadoo.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr DNS Standard query response A 194.158.96.23 6.503685 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> ns3.wanadoo.fr DNS Standard query A mx1.grolier.fr 6.570962 ns3.wanadoo.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr DNS Standard query response A 194.158.96.46 6.571935 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> netcourrier.com TCP 1032 > smtp [SYN] Seq=225455810 Ack=0 Win=5840 Len=0 6.635968 netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1032 [SYN, ACK] Seq=3440715816 Ack=225455811 Win=33304 Len=0 9.569967 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> netcourrier.com TCP 1032 > smtp [SYN] Seq=225455810 Ack=0 Win=5840 Len=0 9.634415 netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1032 [ACK] Seq=3440715817 Ack=225455811 Win=33304 Len=0 10.004330 netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1032 [SYN, ACK] Seq=3440715816 Ack=225455811 Win=33304 Len=0 11.999962 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> mx0.grolier.fr TCP 1030 > smtp [SYN] Seq=201347281 Ack=0 Win=5840 Len=0 12.067963 mx0.grolier.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1030 [ACK] Seq=4233711057 Ack=201347282 Win=33304 Len=0 12.359953 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> netcourrier-1v.netcourrier.com TCP 1031 > smtp [SYN] Seq=203841264 Ack=0 Win=5840 Len=0 12.427883 netcourrier-1v.netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1031 [ACK] Seq=2629543018 Ack=203841265 Win=33304 Len=0 14.685487 mx0.grolier.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1030 [SYN, ACK] Seq=4233711056 Ack=201347282 Win=33304 Len=0 15.040416 netcourrier-1v.netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1031 [SYN, ACK] Seq=2629543017 Ack=203841265 Win=33304 Len=0 15.569954 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> netcourrier.com TCP 1032 > smtp [SYN] Seq=225455810 Ack=0 Win=5840 Len=0 15.634302 netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1032 [ACK] Seq=3440715817 Ack=225455811 Win=33304 Len=0 16.756110 netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1032 [SYN, ACK] Seq=3440715816 Ack=225455811 Win=33304 Len=0 23.005964 APastourelles-104-1-2-78.abo.wanadoo.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP 3995 > www [SYN] Seq=4055168737 Ack=0 Win=16384 Len=0 23.008514 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> ns3.wanadoo.fr DNS Standard query PTR 78.169.13.80.in-addr.arpa 23.078962 ns3.wanadoo.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr DNS Standard query response PTR APastourelles-104-1-2-78.abo.wanadoo.fr 25.929434 APastourelles-104-1-2-78.abo.wanadoo.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP 3995 > www [SYN] Seq=4055168737 Ack=0 Win=16384 Len=0 26.693267 netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1028 [RST, ACK] Seq=1561870919 Ack=4271411000 Win=33304 Len=0 27.067235 netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1029 [RST, ACK] Seq=3226699463 Ack=4282750206 Win=33304 Len=0 27.569963 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> netcourrier.com TCP 1032 > smtp [SYN] Seq=225455810 Ack=0 Win=5840 Len=0 27.656116 netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1032 [ACK] Seq=3440715817 Ack=225455811 Win=33304 Len=0 30.257647 netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1032 [SYN, ACK] Seq=3440715816 Ack=225455811 Win=33304 Len=0 35.999957 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> mx0.grolier.fr TCP 1030 > smtp [SYN] Seq=201347281 Ack=0 Win=5840 Len=0 36.069573 mx0.grolier.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1030 [ACK] Seq=4233711057 Ack=201347282 Win=33304 Len=0 36.359952 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> netcourrier-1v.netcourrier.com TCP 1031 > smtp [SYN] Seq=203841264 Ack=0 Win=5840 Len=0 36.425509 netcourrier-1v.netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1031 [ACK] Seq=2629543018 Ack=203841265 Win=33304 Len=0 41.711570 mx0.grolier.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1030 [SYN, ACK] Seq=4233711056 Ack=201347282 Win=33304 Len=0 42.052488 netcourrier-1v.netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1031 [SYN, ACK] Seq=2629543017 Ack=203841265 Win=33304 Len=0 51.569962 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> netcourrier.com TCP 1032 > smtp [SYN] Seq=225455810 Ack=0 Win=5840 Len=0 51.633748 netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1032 [ACK] Seq=3440715817 Ack=225455811 Win=33304 Len=0 57.259722 netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1032 [SYN, ACK] Seq=3440715816 Ack=225455811 Win=33304 Len=0 83.999968 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> mx0.grolier.fr TCP 1030 > smtp [SYN] Seq=201347281 Ack=0 Win=5840 Len=0 84.068844 mx0.grolier.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1030 [ACK] Seq=4233711057 Ack=201347282 Win=33304 Len=0 84.359951 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> netcourrier-1v.netcourrier.com TCP 1031 > smtp [SYN] Seq=203841264 Ack=0 Win=5840 Len=0 84.428755 netcourrier-1v.netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1031 [ACK] Seq=2629543018 Ack=203841265 Win=33304 Len=0 95.695720 mx0.grolier.fr -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1030 [SYN, ACK] Seq=4233711056 Ack=201347282 Win=33304 Len=0 96.050639 netcourrier-1v.netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1031 [SYN, ACK] Seq=2629543017 Ack=203841265 Win=33304 Len=0 99.569960 AStrasbourg-202-1-4-62.abo.wanadoo.fr -> netcourrier.com TCP 1032 > smtp [SYN] Seq=225455810 Ack=0 Win=5840 Len=0 99.637995 netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1032 [ACK] Seq=3440715817 Ack=225455811 Win=33304 Len=0 111.267913 netcourrier.com -> AStrasbourg-202-1-4-62.abo.wanadoo.fr TCP smtp > 1032 [SYN, ACK] Seq=3440715816 Ack=225455811 Win=33304 Len=0 anybody have a solution?
thanks
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