Linux Netfilter discussions
 help / color / mirror / Atom feed
From: Alex Flex <aflexzor@gmail.com>
To: netfilter@vger.kernel.org
Subject: Quick help with stateless firewall
Date: Sat, 15 Jun 2013 17:38:47 -0600	[thread overview]
Message-ID: <51BCFB07.3060408@gmail.com> (raw)

Hello,

I have the following simpel stateless firewall... the issue is iam not 
able to send ICMPs queries from within the machine. What could I modify 
or add for this to be able to happen .  Also iam only intending to run a 
HTTP service and DNS service is it fine the way it is?

Also, I intend to keep the script stateless not wanting to use conntrack 
at all.

Thanks
Alex


#!/bin/bash

/sbin/iptables -F
/sbin/iptables -X

/sbin/iptables -P INPUT DROP
/sbin/iptables -P FORWARD DROP
/sbin/iptables -P OUTPUT ACCEPT

#Accept SSH
/sbin/iptables -A INPUT -p tcp -m tcp -s 204.199.62.74 --dport 22 -j ACCEPT

/sbin/iptables -A INPUT -p tcp --dport 1000:65535 -j ACCEPT
/sbin/iptables -A INPUT -p tcp --dport 80 -j ACCEPT
/sbin/iptables -A INPUT -p udp --dport 53 -j ACCEPT
/sbin/iptables -A INPUT -p tcp --dport 53 -j ACCEPT



             reply	other threads:[~2013-06-15 23:38 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-15 23:38 Alex Flex [this message]
2013-06-15 23:50 ` Quick help with stateless firewall Bryan Harris
2013-06-16  1:17   ` Neal Murphy
2013-06-17  7:23 ` André Paulsberg

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=51BCFB07.3060408@gmail.com \
    --to=aflexzor@gmail.com \
    --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