Re: [Sheflug] Mail server

[Richard Ibbotson <nospam [at] sheflug.co.uk>]

Eliot

> The Idea is to learn how to setup the mail server, proxy server and
> firewall.
> I have never done this before does anybody know any good tutorials
> that take you through it step by step.

Have a look at 

http://www.linuxnewbie.org        and 
http://www.sheflug.co.uk/mail.html

this might give a few clues.

> The main point is to learn how to do it but I want Good guidance
> to make it easy.

Thing about MTAs such as Sendmail or Exim or Postfix or the others is 
that they all have security holes which are used by crackers to break 
into your dialup system.  If you think that you won't be targeted 
then you would have to be the only person on this planet who thinks 
that the BT exchange is secure in any way.  

You have to learn somewhere and so Sendmail might be a good place to 
start.  There are a few people on this list who can help you to 
configure it.

After you've leaned to send mail you'll need a Fetchmail conf file 
from somewhere.  Don't post passwords or IP addresses to this list or 
any other.  Last week a lecturer from Manchester Uni was cracked in a 
few minutes whilst downloading mail at home.  He was using Fetchmail.

Finally you'll need to configure Procmail to drop mail from your 
gateway up to your workstation......  www.procmail.org  .... for that.

You'll need more help but I find it's best to give someone a few 
clues and then let them take it from there.

A final word.  Even if you don't put all this mail stuff into your 
firewall box - which you shouldn't - you may still find that your 
third box which is your mail server gets cracked.  So, don't think 
you know it all until you've used Linux for at least five years :)) 
Even then you'll find that there's a lot of people out there who know 
more than yourself.

Thanks


-- 
Richard

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