Date: Wed, 21 Nov 2001 21:50:13 +0100 From: "Anthony Atkielski" <anthony@atkielski.com> To: "Jan Grant" <Jan.Grant@bristol.ac.uk> Cc: "FreeBSD Questions" <freebsd-questions@freebsd.org> Subject: Re: Sendmail security and defaults on 4.3 RELEASE Message-ID: <00df01c172ce$22441080$0a00000a@atkielski.com> References: <Pine.GSO.4.31.0111211615230.2604-100000@mail.ilrt.bris.ac.uk>
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I added my other machine (on my LAN) to /etc/mail/access right away. I don't understand what the mapping thing does to this file; it looks the same after I run the command as it did before, so what happened? I already have a few things in the aliases file, and I have some previous experience with that (on my production Web site). Looked at local-host-names but didn't actually create one. Haven't heard of virtusertable but I'll look into it. Sendmail configuration looks exceedingly hairy and I've read dire warnings about playing with it on many occasions. I get the impression that one could make a career just out of going from site to site tuning the sendmail configuration file. ----- Original Message ----- From: "Jan Grant" <Jan.Grant@bristol.ac.uk> To: "Anthony Atkielski" <anthony@atkielski.com> Cc: "FreeBSD Questions" <freebsd-questions@freebsd.org> Sent: Wednesday, November 21, 2001 17:21 Subject: Re: Sendmail security and defaults on 4.3 RELEASE > On Wed, 21 Nov 2001, Anthony Atkielski wrote: > > > How secure is the default configuration of sendmail on an > > installation of FreeBSD 4.3 RELEASE? I want to open the smtp port > > and try some stuff mailing back and forth, possibly on a > > semi-production basis. Are there any risks I need to worry about > > with the default configuration of sendmail? > > It's pretty good, to be honest, and works well as a leaf-node. There are > a bunch of self-explanatory files in /etc/mail. Except, of course, for > the sendmail.cf file :-) > > You'll probably want to edit > /etc/mail/access > .../aliases > .../local-host-names > .../virtusertable (if you're hosting multiple domains) > > However, sendmail is something that it's worth keeping up-to-date. This > is pretty simple to do if you're using cvsup. > > There are a bunch of alternative mailers (qmail, postfix, exim) all of > which are reasonable alternatives. > > Sendmail configuration can be a bit thorny; I'd recommend you play and > come back with specific setup questions. > > -- > jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/ > Tel +44(0)117 9287088 Fax +44 (0)117 9287112 RFC822 jan.grant@bris.ac.uk > and Nostradamus never dreamed of the Church of the Accellerated Worm > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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