TR: Redirecting mail

Timothy Earl mehimx at gmail.com
Fri Apr 8 13:50:41 CEST 2005


Forgot to send to list...

> -----Message d'origine-----
> De : Timothy Earl [mailto:mehimx at gmail.com]
> Envoyé : vendredi 8 avril 2005 13:48
> À : 'Ilo Lorusso'
> Objet : RE: Redirecting mail
> 
> Hi,
> 
> iptables v1.2.5: Unknown arg `--dports'
> 
> changes --dports to --dport when not using multiport...
> 
> Regards,
> 
> Tim
> > -----Message d'origine-----
> > De : netfilter-bounces at lists.netfilter.org [mailto:netfilter-
> > bounces at lists.netfilter.org] De la part de Ilo Lorusso
> > Envoyé : vendredi 8 avril 2005 13:38
> > À : Rob Sterenborg
> > Cc : netfilter at lists.netfilter.org
> > Objet : Re: Redirecting mail
> >
> > > The networks seem to be connected, so can't you just configure a
> > > smtp-forwarder in your MTA configuration ? That would be easier I
> think.
> >
> > I'd prefer just using iptables, so i can redirect when i need to..
> >
> >
> >
> > > There is no need to use multiport because you only DNAT 1 port : smtp.
> > > But that should not be a problem.
> > >
> > > iptables -t nat -A OUTPUT -p tcp --dports smtp \
> > > -j DNAT --to-destination 192.168.12.56
> >
> >
> > if I try it without the multiport option i get the following error..
> >
> > [root at posjia0h01 root]# iptables -t nat -A OUTPUT -p tcp --dports smtp -
> j
> > DNAT --to-destination 192.168.12.56
> > iptables v1.2.5: Unknown arg `--dports'
> > Try `iptables -h' or 'iptables --help' for more information.
> >
> >
> >
> > And no I dont have any rules blocking this from working as shown below,
> > but
> > would i need any iptables rules to make it work maybe? (like enable
> > ipforwarding and maybe a forward rule, im not sure)
> >
> >
> >
> > [root at prxsaa0z02 root]# iptables -L
> > Chain INPUT (policy ACCEPT)
> > target     prot opt source               destination
> >
> > Chain FORWARD (policy ACCEPT)
> > target     prot opt source               destination
> >
> > Chain OUTPUT (policy ACCEPT)
> > target     prot opt source               destination
> > [root at prxsaa0z02 root]# iptables -L -t nat
> > Chain PREROUTING (policy ACCEPT)
> > target     prot opt source               destination
> >
> > Chain POSTROUTING (policy ACCEPT)
> > target     prot opt source               destination
> >
> > Chain OUTPUT (policy ACCEPT)
> > target     prot opt source               destination





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