Merit Network
Can't find what you're looking for? Search the Mail Archives.
  About Merit   Services   Network   Resources & Support   Network Research   News   Events   Home

Discussion Communities: Merit Network Email List Archives

North American Network Operators Group

Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

Re: The impending DDoS storm

  • From: Jason Frisvold
  • Date: Wed Aug 13 13:49:34 2003

If the blaster cannot get a proper DNS response, it continues to
replicate via port 135... It then goes into a retry cycle and continues
to try to get a good DNS lookup.

On Wed, 2003-08-13 at 12:25, Lloyd Taylor wrote:
> Does anyone have any notion of what the Blaster worm will do if the
> DNS lookup for "windowsupdate.com" returns NXDOMAIN?  If it handles this
> case by not sending any micreant love, might that not be the best way
> to mitigate the potential damage?
> 
> --Lloyd
> 
> On Wed, 13 Aug 2003, Jack Bates wrote:
> 
> > Date: Wed, 13 Aug 2003 11:10:13 -0500
> > From: Jack Bates <jbates@brightok.net>
> > To: Jason Frisvold <friz@corp.ptd.net>
> > Cc: "Ingevaldson, Dan (ISS Atlanta)" <dsi@iss.net>,
> >      Stephen J. Wilcox <steve@telecomplete.co.uk>, nanog@merit.edu
> > Subject: Re: The impending DDoS storm
> > 
> > 
> > On Wed, 2003-08-13 at 10:55, Ingevaldson, Dan (ISS Atlanta) wrote:
> > >-Does one DNS lookup on "windowsupdate.com" and then uses the IP
> > 
> > No, I wouldn't dream of setting windowsupdate.com to 127.0.0.1. Who in 
> > their right mind would do that?
> > 
> > -Jack
> > 
-- 
---------------------------
Jason H. Frisvold
Backbone Engineering Supervisor
Penteledata Engineering
friz@corp.ptd.net
RedHat Engineer - RHCE # 807302349405893
Cisco Certified - CCNA # CSCO10151622
MySQL Core Certified - ID# 205982910
---------------------------
"Imagination is more important than knowledge.
Knowledge is limited. Imagination encircles
the world."
      -- Albert Einstein [1879-1955]

Attachment: signature.asc
Description: This is a digitally signed message part




Discussion Communities


About Merit | Services | Network | Resources & Support | Network Research
News | Events | Contact | Site Map | Merit Network Home


Merit Network, Inc.