helo cook,

anong luto natin ngayon?

On Mon, Jan 26, 2009 at 7:04 PM, Linux Cook <[email protected]> wrote:
> Hi edel...
>
> Yep it's weird...
>

anywya, hhehe hindi ko pa alam talaga kung ano prob ng port forawrding
mo. di ba tumatagos galing sa labas?

> I'm accessing the forwarded port from remote network. Should I disable
> SELINUX on the internal box too just like what I did with the gateway box?
>

try mo disable. wala ako experience sa selinux kaya di ko rin masabi.
pero kung selinux man yan, makikita mo sa syslog yung sinasabi ni
selinux.

gudluck.

>
> On Mon, Jan 26, 2009 at 4:43 PM, Edel SM <[email protected]> wrote:
>>
>> On Mon, Jan 26, 2009 at 9:23 AM, Linux Cook <[email protected]> wrote:
>> > Hi guys,
>> >
>> > I've setup a centos-5.2 server (eth1 facing the internet) with a simple
>> > port
>> > forwarding where it forwards port 8081 to my internal box'
>> >  (192.168.0.2)
>> > port 8080.
>> >
>> > $ lsmod |grep iptable
>> > iptable_mangle          6849  0
>> > iptable_nat            11205  1
>> > iptable_filter          7105  1
>> > ip_nat                 20973  2 iptable_nat,ip_nat_ftp
>> > ip_conntrack           53153  5
>> > xt_state,iptable_nat,ip_nat_ftp,ip_nat,ip_conntrack_ftp
>> > ip_tables              17029  3
>> > iptable_mangle,iptable_nat,iptable_filter
>> > x_tables               17349  8
>> >
>> > xt_limit,xt_pkttype,ipt_REJECT,xt_tcpudp,xt_state,ipt_LOG,iptable_nat,ip_tables
>> >
>> > $ sysctl -p
>> > net.ipv4.ip_forward = 1
>> > net.ipv4.conf.default.rp_filter = 1
>> > net.ipv4.conf.default.accept_source_route = 0
>> >
>> > my rules:
>> >
>> > $IPTABLES -P INPUT ACCEPT
>> > $IPTABLES -P FORWARD ACCEPT
>> > $IPTABLES -t nat -P PREROUTING ACCEPT
>> > $IPTABLES -t mangle -P PREROUTING ACCEPT
>> >
>> > $IPTABLES -A INPUT -p tcp -m tcp --dport 8081 -j ACCEPT
>> > $IPTABLES -t nat -A PREROUTING -i eth1 -p tcp -m tcp --dport 8081 -j
>> > DNAT
>> > --to-destination 192.168.0.2:8080
>> > $IPTABLES -I FORWARD -p tcp -d 192.168.0.2 --dport 8080 -j ACCEPT
>> >
>> > after running the rule:
>> >
>> > $ iptables -t nat -L
>> >
>> > Chain PREROUTING (policy ACCEPT)
>> > target     prot opt source               destination
>> > DNAT       tcp  --  anywhere             anywhere            tcp
>> > dpt:tproxy
>> > to:192.168.0.2:8080
>> >
>> > Chain POSTROUTING (policy ACCEPT)
>> > target     prot opt source               destination
>> >
>> > Chain OUTPUT (policy ACCEPT)
>> > target     prot opt source               destination
>> >
>> > What is wrong with my rules? Did I miss something?
>> >
>> > Pls help....
>> >
>> > linuxcook
>> >
>>
>> seems nothing's wrong. are you trying to access the forwarded port
>> from inside (192.168.0.0/24)? if you cant get traffic back that's
>> normal.
>>
>> >
>> >
>> >
>> > _________________________________________________
>> > Philippine Linux Users' Group (PLUG) Mailing List
>> > http://lists.linux.org.ph/mailman/listinfo/plug
>> > Searchable Archives: http://archives.free.net.ph
>> >
>>
>>
>>
>> --
>> edel
>
>



-- 
edel
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