Linux Netfilter discussions
 help / color / mirror / Atom feed
From: "J. Bakshi" <joydeep@infoservices.in>
To: netfilter@vger.kernel.org
Subject: iptree question
Date: Tue, 08 Sep 2009 11:59:00 +0530	[thread overview]
Message-ID: <4AA5F9AC.8000701@infoservices.in> (raw)

Hello list,

I am opening this new thread as I am working in a new direction with
ipset ( as many of you suggested ).

The present rules I am using to auto blacklist ips is like below

````````````````````````````
iptables -N syn-flood
iptables -A INPUT -i $IFACE -p tcp --syn -j syn-flood
iptables -A syn-flood -p tcp --syn  -m hashlimit \
--hashlimit 4/sec --hashlimit-burst 4 --hashlimit-htable-expire 300000 \
--hashlimit-mode srcip --hashlimit-name testlimit -j RETURN

# Drop bad IP and put then in blacklist
iptables -A syn-flood -m recent --name blacklist --set -j DROP
`````````````````````````````````

To manage the ips properly I like to save ips  in iptree which is an
option from ipset. Is there any way to migrate the ips from ipt_recent
to iptree ?

Or a new way as below  ?

```````````````````
ipset --create  blacklistIP   iptree --timeout 3600

iptables   -A PREROUTING    blacklistIP   -j DROP


iptables -N syn-flood
iptables -A INPUT -i $IFACE -p tcp --syn -j syn-flood
iptables -A syn-flood -p tcp --syn  -m hashlimit \
--hashlimit 4/sec --hashlimit-burst 4 --hashlimit-htable-expire 300000 \
--hashlimit-mode srcip --hashlimit-name testlimit -j RETURN

# Drop bad IP
iptables  -A  syn-flood  -j DROP

# save the src IP
ipset -N blacklistIP -j SET --add-set src
ipset -N blacklistIP -j syn-flood
``````````````````````

Am I on the right way ?



             reply	other threads:[~2009-09-08  6:29 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-08  6:29 J. Bakshi [this message]
2009-09-08  7:57 ` iptree question Anatoly Muliarski
2009-09-08  8:02   ` J. Bakshi

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4AA5F9AC.8000701@infoservices.in \
    --to=joydeep@infoservices.in \
    --cc=netfilter@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox