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| Path | csiph.com!newsfeed.hal-mli.net!feeder3.hal-mli.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!news.linkpendium.com!news.linkpendium.com!panix!not-for-mail |
|---|---|
| From | Dale Dellutri <ddelQQQlutr@panQQQix.com> |
| Newsgroups | comp.os.linux.networking |
| Subject | Re: Dropping connection attempts to port 25 |
| Date | Mon, 11 Mar 2013 14:58:19 +0000 (UTC) |
| Organization | PANIX Public Access Internet and UNIX, NYC |
| Lines | 24 |
| Message-ID | <khkreb$7qb$1@reader2.panix.com> (permalink) |
| References | <khkqrs$msg$1@news.albasani.net> |
| NNTP-Posting-Host | panix1.panix.com |
| X-Trace | reader2.panix.com 1363013899 8011 166.84.1.1 (11 Mar 2013 14:58:19 GMT) |
| X-Complaints-To | abuse@panix.com |
| NNTP-Posting-Date | Mon, 11 Mar 2013 14:58:19 +0000 (UTC) |
| User-Agent | tin/2.0.0-20110823 ("Ardenistiel") (UNIX) (NetBSD/5.1.2 (i386)) |
| Xref | csiph.com comp.os.linux.networking:2003 |
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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 -- Dale Dellutri <ddelQQQlutr@panQQQix.com> (lose the Q's)
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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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