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Re: Dropping connection attempts to port 25

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On Mon, 11 Mar 2013 14:58:19 +0000, Dale Dellutri wrote:

> On Mon, 11 Mar 2013 10:48:29, Clark Smith <noaddress@nowhere.net> wrote:
>>         Somebody keeps trying to connect to my sendmail server, without
>> success, but filling my logs in the process. Since, according to the
>> sendmail logs, the connection seems to be coming from a specific IP
>> address <ip>, I added the following IPTables rules:
> 
>>         iptables -A INPUT -s <ip> -j DROP
>>         iptables -A OUTPUT -d <ip> -j DROP
> 
>> However, I can still see further connection attempts in the sendmail
>> logs.
> 
>>         Any ideas on how to get IPTables to drop such attempts before
>> they get to sendmail?
> 
> Where in the INPUT chain was the first rule added?  Was it after a rule
> which accepts port 25 attempts?
> 
> Remember that rules are done in order.
> 
> To get the order of the rules:
>   # iptables -nvL

	I added the rules exactly as I described - nothing more, nothing 
less. Am I perhaps missing something?

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Thread

Dropping connection attempts to port 25 Clark Smith <noaddress@nowhere.net> - 2013-03-11 14:48 +0000
  Re: Dropping connection attempts to port 25 Richard Kettlewell <rjk@greenend.org.uk> - 2013-03-11 14:58 +0000
    Re: Dropping connection attempts to port 25 Clark Smith <noaddress@nowhere.net> - 2013-03-11 15:12 +0000
      Re: Dropping connection attempts to port 25 Richard Kettlewell <rjk@greenend.org.uk> - 2013-03-11 16:24 +0000
      Re: Dropping connection attempts to port 25 Octothorpe <Octothorpe@invalid.com> - 2013-03-11 16:38 -0400
        Re: Dropping connection attempts to port 25 Richard Kettlewell <rjk@greenend.org.uk> - 2013-03-12 10:16 +0000
  Re: Dropping connection attempts to port 25 Dale Dellutri <ddelQQQlutr@panQQQix.com> - 2013-03-11 14:58 +0000
    Re: Dropping connection attempts to port 25 Clark Smith <noaddress@nowhere.net> - 2013-03-11 15:15 +0000
  Re: Dropping connection attempts to port 25 David Hough <noone$$@llondel.org> - 2013-03-12 07:29 +0000
  Re: Dropping connection attempts to port 25 Joe Beanfish <joebeanfish@nospam.duh> - 2013-03-12 13:21 +0000

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