On 3/18/11 6:22 PM, [email protected] wrote:
> 
> Hi
>  I have shorewall/iptables running on my server (pub) but access to
> localhost is blocked then I attemp to use ping localhost, telnet
> localhost 25, echo Hello | sendmail -v root@localhost.   All these
> commands were run after using shorewall reset and creating the attached
> file.  All these commands work with shorewall clear.
> 
>  My problem is I can't email the root messages from (pub) to (nor) where
> they are forwarded on to my mail accounts at my isp.  Any attempt to
> send mail is met with "Connection timed out with [127.0.0.1]". 
> Something has change possibly as my fault during changing the smart host
> to (nor) from another computer.

Jim,

Somehow, you have managed to install a blanket DNAT rule:

Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source
destination
    7   492 DNAT       all  --  *      *       0.0.0.0/0
0.0.0.0/0           to:192.168.1.7

I suspect you have something like this in /etc/shorewall/rules:

#ACTION SOURCE          DEST
DNAT-   $FW             192.168.1.7

Clearly, that is a very bad idea.

-Tom
-- 
Tom Eastep        \ When I die, I want to go like my Grandfather who
Shoreline,         \ died peacefully in his sleep. Not screaming like
Washington, USA     \ all of the passengers in his car
http://shorewall.net \________________________________________________

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