>From: Paul Weaver <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Subject: [BAWUG] SMTP at hotspots >Date: Thu, 24 Jul 2003 19:36:36 +0300
>Just wondering how people coped with people wanting to send emails at >hotposts. Chance are their normal ISP isnt the same as yours and their >default smtp server wont obey the request. Aside from each new "hotspotter" >finding out the right server, and changing their email client, what other >ways are there arround this problem? Well, this isn't exactly "on target," for at least a couple of reasons (not least of which is that my mode of operation is probably significantly different from that of the "target audience" -- and I'm not (presently) operating a "hotspot" per se).... >At the moment I'm thinking of forwarding every outgoing connection on port 25 >to our ISP's smtp server, of course even simply allowing outgoing smtp opens >the hotspot up to abuse. How do other people cope? I am postmaster@ a few places; I have absolutely no desire to provide a vehicle for spammers to (ab)use: I block 25/tcp from the network where my wireless APs live. However, that isn't a problem for me (or my spouse, for that matter), because I don't try to send mail from that network, even when that network provides my laptop's connectivity. :-} I set up my home firewall so that it has 3 NICs: one for the Internet link; 2 for "internal" nets. One of the internal nets is strictly wired, and is where my various servers and the like reside. The other is what I refer to as a "guest" net -- to emphasize that I do not have anywhere near as much control over who is connected on that net and what those folks might (or might not) do. It is this latter net where the APs are; it is also where I would provide connectivity to temporary guests in my home (if I were to host a meeting there, for example). Both nets are "behind the firewall" in some senses, but they are also firewalled off from each other: with very few exceptions, the only traffic permitted is from the guest net to one particular server on the "trusted" net, and that, only via SSH. So I send & receive mail on one of the "trusted" servers, regardless of my physical location. (Indeed, as I type this, the process is running on that server, but my laptop & I are about 5 miles away.) I don't claim that approach works for anyone else, but it seems to make sense to me, for my perceived needs. Peace, david -- David H. Wolfskill [EMAIL PROTECTED] Based on what I have seen to date, the use of Microsoft products is not consistent with reliability. I recommend FreeBSD for reliable systems. -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
