Mailinglist Archive: opensuse-security (575 mails)

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Re: [suse-security] ipchains and Portscan
  • From: Steffen Dettmer <steffen@xxxxxxx>
  • Date: Wed, 27 Nov 2002 11:36:37 +0100
  • Message-id: <20021127113637.E3117@xxxxxxxxx>
* Ruprecht Helms wrote on Wed, Nov 27, 2002 at 11:39 +0100:
> to denie port 25 (smtp) is not a good idea.

Can you please explain that? I happily block tcp/25 on all
servers except mailservers.

> dial-up. If you have a mailserver in your DMZ
> you can disable pop3 to outside.

And if I have a POP3 server in the LAN I cannot block?!

oki,

Steffen

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