Linux Netfilter discussions
 help / color / mirror / Atom feed
From: Peter Horst <phorst@speakeasy.net>
To: netfilter@lists.netfilter.org
Subject: question about opening a port
Date: Mon, 31 Jul 2006 14:19:24 -0500	[thread overview]
Message-ID: <44CE57BC.8010601@speakeasy.net> (raw)

Hello - if someone has a second, I could really use some help. I'm 
trying to open a port (in addition to the ones already open) in order to 
allow DNS traffic (port 53), both UDP and TCP.  Does the following 
iptables script look right for this purpose? 

Thanks very much.

Chain RH-Firewall-1-INPUT (2 references)
num  target     prot opt source               destination
1    ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0
2    ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           icmp 
type 255
3    ACCEPT     esp  --  0.0.0.0/0            0.0.0.0/0
4    ACCEPT     ah   --  0.0.0.0/0            0.0.0.0/0
5    ACCEPT     udp  --  0.0.0.0/0            224.0.0.251         udp 
dpt:5353
6    ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0           udp dpt:53
7    ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           tcp dpt:53
8    ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0           udp 
dpt:631
9    ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           tcp 
dpt:631
10   ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0           state 
RELATED,ESTABLISHED
11   ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           state 
NEW tcp dpt:22
12   ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           state 
NEW tcp dpt:25
13   ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           state 
NEW tcp dpt:80
14   ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           state 
NEW tcp dpt:443
15   ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0           state 
NEW tcp dpt:53
16   ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0           state 
NEW udp dpt:53
17   REJECT     all  --  0.0.0.0/0            0.0.0.0/0           
reject-with icmp-host-prohibited


             reply	other threads:[~2006-07-31 19:19 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-07-31 19:19 Peter Horst [this message]
2006-08-04 12:44 ` question about opening a port Martijn Lievaart

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=44CE57BC.8010601@speakeasy.net \
    --to=phorst@speakeasy.net \
    --cc=netfilter@lists.netfilter.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