Securing my mail server?

Support for security such as Firewalls and securing linux
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Light_Speed
Posts: 32
Joined: 2008/01/07 22:47:12

Securing my mail server?

Post by Light_Speed » 2008/02/20 08:58:51

I am finally making the move from shared hosting to dedicated and I need some mail server advice.

First off in the past on shared hosting the mail server was sendmail but now that I have a choice it is a toss up between sendmail and postfix. Any specific reasons why I should choose one over the other?

One of my biggest fears is my mail server being taken over and used for spam floods and am looking for info on how to harden that aspect of the server.

Most of my front end is up to date and safe (as can be expected) from injection and the server itself is pretty well secured with the iptable entries I am running but what can i do specifically regarding my mail server to protect it.

gerald_clark
Posts: 10642
Joined: 2005/08/05 15:19:54
Location: Northern Illinois, USA

Securing my mail server?

Post by gerald_clark » 2008/02/20 14:23:56

You can start by reading sendmail's config file /etc/mail/sendmail.mc.

Light_Speed
Posts: 32
Joined: 2008/01/07 22:47:12

Re: Securing my mail server?

Post by Light_Speed » 2008/02/27 04:23:47

[quote]
gerald_clark wrote:http://www.centos.org/images/image.gif
You can start by reading sendmail's config file /etc/mail/sendmail.mc.[/quote]

Thanks for that but not much help for a newbie as I don't know yet what to enable or disable.

I decided to go with Postfix instead and found helpfull security info here:
http://www.puschitz.com/SecuringLinux.shtml

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