[tproxy] transparent smtp

Paulo Roncon proncon at gmail.com
Mon Mar 29 16:25:19 CEST 2010


can I use the TPROXY to use as a transparent smtp proxy?
I want to use as:

serv1 --------------->(serX)--------->serv2
-servX receives the smtp traffic from serv1 and relay it to serv2
-serv2 receives the header information (includind IP information) as being
sent from serv1
-servX is not known to serv1 nor serv2

As of now I tried to follow the posts of the TPROXY home no no avail. Tried
the PROXSMTP and managed to be transparent at the SMTP level, but the servX
IP was visible...

Please help,
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