How to selectivey route messages 7107

Robert M. Riches Jr.

That is a very illuminating question. I infer I can send anything I like out any port I like with Verizon. They would not know if I were a server or not.

This seems to mean that I will be able to run named (bind) the way I want, since I do not entertain queries from the Internet (just from my LAN). It Verizon will not think it a server.

The problem will be with sendmail. While I could send messages out through Verizon, I could not accept messages in, since they would go to port 25.

I do not care enough about being an SSH server to follow up on this. I currently block it from the outside.

So I guess everything would be OK if I could tell sendmail to use interface ppp0 and let everything go to the default interface eth1.

Am I correct about my understanding of this?

All I need do is change the default gateway from ppp0 to eth1, right? And find a way to make sendmail use ppp0?

e-mail does not use IP addresses directly, so if I sent emails from no I would get it over the ppp0 interface, right? I have another computer that normally runs Linux, but it is dual boot to Windows XP Home. But I am afraid to run it directly on the Internet so it goes through the iptables firewall of the machine that does connect to the Internet. That machine does have a NIC in it (normally used to connect to the main machine) and I suppose I could boot up Windows XP Home on it and let the Verizon techie connect the CAT5 wire from their router-switch to it for setup.

-- .~. Jean-David Beyer Registered Linux User 85642. V PGP-Key: 9A2FC99A Registered Machine 241939. ^^-^^ 16:20:00 up 10 days, 2:50, 4 users, load average: 4.03, 4.10, 4.09