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Port Forward (TCP/UDP) ?
Posted: 24 Feb 2009, 08:54
by CanadianJeff
possible to port forward ports say from linux to windows?
source : port / dest : port
0.0.0.0:6112 192.168.x.xxx:6112 (TCP/UPD/BOTH) ?
Posted: 24 Feb 2009, 10:54
by chirpy
There's no provision in csf to perform port forwarding. You'd need to do that manually with iptables in a csfpost.sh script (see readme.txt).
root@server7 [/etc/csf]# iptables -t nat -L -n
Posted: 03 Nov 2009, 22:09
by claus
I did that but is not working
why doesn't open port 81 ?
iptables -t nat -A PREROUTING -p tcp -i eth0 -d 212.146.105.56 --dport 81 -j DNAT --to 10.10.10.2:80
iptables -A FORWARD -p tcp -d 10.10.10.2 --dport 80 -j ACCEPT
so ?
root@server7 [/etc/csf]# iptables -t nat -L -n
Chain PREROUTING (policy ACCEPT)
target prot opt source destination
DNAT tcp -- 0.0.0.0/0 212.146.105.56 tcp dpt:81 to:10.10.10.2:80
Chain POSTROUTING (policy ACCEPT)
target prot opt source destination
MASQUERADE all -- 10.10.10.0/24 0.0.0.0/24
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
root@server7 [/etc/csf]#
root@server7 [/etc/csf]# telnet 212.146.105.56 81
Trying 212.146.105.56...
telnet: connect to address 212.146.105.56: Connection refused
root@server7 [/etc/csf]#
DNAT tcp -- 0.0.0.0/0 212.146.105.56 tcp dpt:81 to:10.10.10.2:80
Posted: 04 Nov 2009, 10:08
by claus
I did that but is not working
so ?
root@server7 [/etc/csf]# iptables -t nat -L -n
Chain PREROUTING (policy ACCEPT)
target prot opt source destination
DNAT tcp -- 0.0.0.0/0 212.146.105.56 tcp dpt:81 to:10.10.10.2:80
Chain POSTROUTING (policy ACCEPT)
target prot opt source destination
MASQUERADE all -- 10.10.10.0/24 0.0.0.0/24
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
root@server7 [/etc/csf]#
81/tcp filtered
why is filtered
csf block some how port 81 ?