All of lore.kernel.org
 help / color / mirror / Atom feed
From: Srinivasa T N <seenutn@linux.vnet.ibm.com>
To: netfilter@vger.kernel.org
Subject: Re: Block an IP
Date: Mon, 31 Jan 2011 10:47:35 +0530	[thread overview]
Message-ID: <4D4645EF.7010004@linux.vnet.ibm.com> (raw)
In-Reply-To: <BAY148-w49B627F2E93301ED140FEFA3E30@phx.gbl>

On Sunday 30 January 2011 01:32 PM, Cory McPherson wrote:
>
>
> Hello,
>
> I'm new to iptables and would like to block an IP. How do I achieve that? More specifically, I'd like to block it from accessing a specific port
> but other ports should be accessible to that IP... Can someone give me an example?
>
> Thanks
>
> PS: please CC me as I'm not subscribed to the list.
>   		 	   		  --
> To unsubscribe from this list: send the line "unsubscribe netfilter" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>

Assuming your protocal is tcp:

iptables -A INPUT p- tcp --source <IP Address> --dport <Port No.> -j REJECT

Regards,
Seenu.

  reply	other threads:[~2011-01-31  5:17 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-30  8:02 Block an IP Cory McPherson
2011-01-31  5:17 ` Srinivasa T N [this message]
  -- strict thread matches above, loose matches on Subject: below --
2002-09-14  2:39 block an ip yuksel
2002-09-14  8:59 ` Antony Stone

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=4D4645EF.7010004@linux.vnet.ibm.com \
    --to=seenutn@linux.vnet.ibm.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.