Gentoo Archives: gentoo-user

From: Hans-Werner Hilse <hilse@×××.de>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] postfix - how to test
Date: Wed, 06 Jun 2007 17:19:05
Message-Id: 20070606191227.4f2c7409.hilse@web.de
In Reply to: Re: [gentoo-user] postfix - how to test by Dan Farrell
1 Hi,
2
3 On Wed, 6 Jun 2007 11:13:09 -0500
4 Dan Farrell <dan@×××××××××.cx> wrote:
5
6 > > > running:
7 > > >
8 > > > nc localhost smtp
9 > > >
10 > > > allows me to send mail so I guess I'm good
11 > >
12 > > Hm, better test if it allows other people to do the same -- if it can
13 > > be reached via the internet or potentially harmful other parties,
14 > > that is. You don't want to be a "passive Spammer", don't you?
15 >
16 > Well, I certainly can't reach it at home.minefield.dk. That doesn't
17 > resolve for me.
18
19 well, min_d_field.dk resolves, but is firewalled. But my point wasn't
20 this, I didn't even take into account that postfix is pretty much
21 secure in this regard (e.g. no strange config directives). It was meant
22 more generally, something that's always to be considered when _testing_
23 something: Not only make sure that it works, also make sure that you
24 don't impose foreseeable risks. Since I made a general (i.e.
25 daemon-independent) proposal for testing whether SMTP works, I thought
26 this might be a needed addition.
27
28 -hwh
29 --
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