From: Joel Becker <Joel.Becker@oracle.com>
To: David Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Subject: Re: TCP Persist Timer DoS
Date: Sat, 20 Jun 2009 02:11:00 -0700 [thread overview]
Message-ID: <20090620091100.GB22935@mail.oracle.com> (raw)
In-Reply-To: <20090620.010514.46602476.davem@davemloft.net>
On Sat, Jun 20, 2009 at 01:05:14AM -0700, David Miller wrote:
> From: Joel Becker <Joel.Becker@oracle.com>
> Date: Fri, 19 Jun 2009 15:31:06 -0700
>
> > Hey Netfolk,
> > I have to assume you've seen
> > http://www.phrack.org/issues.html?issue=66&id=9&mode=txt. Does anyone
> > have a plan or opinion on the DoS? A way to mitigate it, a -EDONTCARE
> > opinion, anything?
>
> This is just like every other "DoS" out there where the attacker has
> to reveal it's IP identity to accomplish the attack, in that it is
> trivial to protect using netfilter by limiting the number of
> connections a host can make with your system.
Thanks Dave, I knew there was a reason this wasn't all that
scary.
Joel
--
"Hell is oneself, hell is alone, the other figures in it, merely projections."
- T. S. Eliot
Joel Becker
Principal Software Developer
Oracle
E-mail: joel.becker@oracle.com
Phone: (650) 506-8127
prev parent reply other threads:[~2009-06-20 9:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-19 22:31 TCP Persist Timer DoS Joel Becker
2009-06-20 8:05 ` David Miller
2009-06-20 9:11 ` Joel Becker [this message]
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=20090620091100.GB22935@mail.oracle.com \
--to=joel.becker@oracle.com \
--cc=davem@davemloft.net \
--cc=netdev@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;
as well as URLs for NNTP newsgroup(s).