On Wed, 2008-01-23 at 09:53 -0800, Tim Alberts wrote: > A little background first..I run 2 servers, mail and web. The mail > server is down for hardware problems. I'm running both email and web on > one server. The web server has 3 network interfaces 1 for public email, > 1 for public web, and 1 for private network. I use 3 cards because the > router I connect to the internet won't recognize multiple IP's for a > single hardware MAC. > > The problem is, that my email messages seem to be going out the web > network interface. This is typically not a problem except for the > reverse DNS lookup fails which at least one domain (Comcast.Net) rejects. > > My question therefore is, how can I route my sendmail traffic to go out > the correct ethernet interface? I'm sure I'll need to do the same for > the web traffic so web site spoofing alarms are triggered. > > I have told sendmail to listen to the correct interfaces, but that > apparently doesn't mean only write to those interfaces. I don't see how > to control this by setting up my routes and I can only really think of > ways to block it in IPtables, not re-route it. ---- assuming that /etc/sysconfig/network has GATEWAY=SOME_IP_ADDRESS then adding GATEWAYDEV=eth0 (or whatever) should identify which to use. Craig
