Re: lug-bg: port mapping

[dam@xxxxxx (Damyan Ivanov)]

On Wed, Feb 06, 2002 at 03:42:22PM +0900 Vladimir Banishky wrote:
> Az se zanimavam predimno s NT  taka che edin amateurski vapros:
> 
> Iskam da mapna 1025 port na machina A da sochi kum 25ti port na machina B -
> bi trqbvalo da e elementarno.
> Ima li nachin tova da se napravi sas Squid-a?
> 
> Machinata e Mandrake Firewall distribucia s dosta orqzani komandi..

Ako si s kernel 2.4:
# dest-NAT
iptables -t NAT -A PREROUTING -p tcp -d A_IP --dport 1025 -j DNAT \
    --to-destination B_IP:smtp
# forward
iptables -A FORWARD -p tcp -d B_IP --dport smtp -j ACCEPT

vtorata komanda e za v sluchay, che politikata na FORWRD verigata e DROP
(kakto se preporychva)

Ako si s kernel 2.2 ti tryabva ipmasqadm. ne si spomnyam sintaksisa.
``man ipmasqadm''

dam

-- 
Damyan Ivanov

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