>From: Stan Hoeppner (stanhardwarefreak.com) >Date: Fri May 28 2010 - 18:09:48 CDT > >IIRC from his initial post, Ioannis has 3 virtual machines atop ESXi: one a >dedicated Ubuntu Shorewall instance, one running Ubuntu Shorewall (again) and >Postfix, one running Microsoft SBS plus Exchange. > >A basic network diagram would be helpful at this point, although out of the >scope of Postfix. > >At first glance this network setup seems an unnecessary mess of "geek toys", >wrought with unneeded complexity for the sake of "neato!" complexity. Tandem >packet firewalls across VMware guests? > >Ioannis, disable all the firewalls but for basic SPI NAT/PAT (if you're using >NAT) on the dedicated Shorewall guest. Route TCP 25 inbound via a PAT rule to >the Postfix guest. See if that eliminates the timeout and related TCP errors. > >-- >Stan
Stan thanks for the reply, and please excuse me for the time interval in between your post and my reply. "Geek" and "neato!" wasn't exactly what I was aiming for, but still I appreciate that you identified the "geeky" complexity of the idea that I had in my head on this implementation. I have to admit that except the insight to get this thing going, you also did get me searching through the dictionary! Nevertheless, based on the fact that I highly appreciate anyone's time and thinking, I thought I should write back first and then give it a try, so let me get back to you later on, today I hope! As far as the network diagram its hidden between the lines of my first post (net,fw,dmz,loc - shorewall three interface firewall) but I will be more thorough and descriptive if what I have at hand doesn't get me going. Gratefull, -- Ioannis __________ Information from ESET Smart Security, version of virus signature database 5155 (20100530) __________ The message was checked by ESET Smart Security. http://www.eset.com
