Red Hat / Fedora :: Mailserver Have To Have Direct Access To WAN Or Can It Be A LAN Device With Just One NIC ?

Apr 22, 2010

Does a mailserver have to have direct access to WAN or can it be a LAN device with just one NIC ?

We have two WAN access points.

One is an adsl router joined to the switch and all seems fine for internet browsing.

The other is a wireless system with a linksys router joining by way of PPPoE and this appears to connect fine.

This PPPoE is direct to our ISP and where we need to downlod our mail to our pending mailserver.

When the linksys router is also joined to the switch all devices can use either the adsl or linksys to roam the net. 192.168.1.1 linksys & 192.168.1.10 is adsl.

When I join the linksys direct to the mailserver I will then need two NIC's. One for the Linksys and one for the LAN.

This is where the fun has started.

So.... Can I just have one NIC (connected to the switch) on the mailserver?

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