[torqueusers] Status Check request from unknown hosts

Beob Kyun Kim trugens at gmail.com
Tue Feb 17 17:34:42 MST 2009


Yes, I block them /etc/sysconfig/iptables on torque server and make iptables
restart.
Thanks.

On Wed, Feb 18, 2009 at 9:25 AM, Miles O'Neal <meo at intrinsity.com> wrote:

> Beob Kyun Kim said...
>
> |I open them only to my worker nodes.
> |Of course, 32.247.167.0 is not included in my worker nodes.
> |
> |I tried to block those ip addresses (32.247.167....) with hosts.deny &
> |iptables.
>
> Are you blocking them at a firewall with iptables,
> on on the torque server?
>
> |When we check traffic related to 32.247.167.., the only related things are
> |DNS lookup to DNS service.
> |
> |Thanks.
> |
> |kyun
> |
> |
> |On Tue, Feb 17, 2009 at 7:57 PM, Arnau Bria <arnaubria at pic.es> wrote:
> |
> |> On Mon, 16 Feb 2009 21:17:17 -0600 (CST)
> |> Miles O'Neal wrote:
> |>
> |> > Beob Kyun Kim said...
> |> >
> |> > |Hi Miles,
> |> > |In addition,
> |> > |While checking traffic from my cluster, there's no traffic from/to
> |> > |32.247.167.0~255.
> |> Do you have your pbs port open to world? I don't think so...
> |>
> |> I had a similar problem and someone told me that it was a pbs known
> |> issue. Something where pbs puts a random number and then has some kind
> |> of DNS sense.
> |>
> |> *Anyway, do your security checks!
> |>
> |> I'll look for that post.
> |>
> |> Cheers,
> |> Arnau
> |> _______________________________________________
> |> torqueusers mailing list
> |> torqueusers at supercluster.org
> |> http://www.supercluster.org/mailman/listinfo/torqueusers
> |>
> |
> |
> |
> |--
> |--
> |Beob Kyun Kim, Ph. D.
> |NSDC Team/ Supercomputing Center/ KISTI
> |335 Kwahangno, Yuseong-gu, Daejeon, 305-806, South Korea
> |trugens at gmail.com, kyun at kisti.re.kr
> |MSN : trugens at hotmail.com/  GTalk : trugens at gmail.com/  NateOn :
> |numdle at nate.com
> |Phone : +82-42-869-0782/  Mobile : +82-10-4422-1584/  Fax :
> +82-42-869-0789
> |
> |--000e0cd2c0cceb3d0a04632666f3
> |Content-Type: text/html; charset=UTF-8
> |Content-Transfer-Encoding: quoted-printable
> |
> |<div>Hi,</div><div><br></div><div>I open them only to my worker
> nodes.</div=
> |><div>Of course, 32.247.167.0 is not included in my worker
> nodes.</div><div=
> |><br></div><div>I tried to block those ip addresses (32.247.167....) with
> h=
> |osts.deny &amp; iptables.</div>
> |<div><br></div><div>When we check traffic related to 32.247.167.., the
> only=
> | related things are DNS lookup to DNS
> service.</div><div><br></div><div>Tha=
> |nks.</div><div><br></div><div>kyun</div><br><br><div
> class=3D"gmail_quote">
> |On Tue, Feb 17, 2009 at 7:57 PM, Arnau Bria <span dir=3D"ltr">&lt;<a href=
> |=3D"mailto:arnaubria at pic.es">arnaubria at pic.es</a>&gt;</span>
> wrote:<br><blo=
> |ckquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px
> #c=
> |cc solid;padding-left:1ex;">
> |<div class=3D"Ih2E3d">On Mon, 16 Feb 2009 21:17:17 -0600 (CST)<br>
> |Miles O&#39;Neal wrote:<br>
> |<br>
> |&gt; Beob Kyun Kim said...<br>
> |&gt;<br>
> |</div><div class=3D"Ih2E3d">&gt; |Hi Miles,<br>
> |&gt; |In addition,<br>
> |&gt; |While checking traffic from my cluster, there&#39;s no traffic
> from/t=
> |o<br>
> |&gt; |32.247.167.0~255.<br>
> |</div>Do you have your pbs port open to world? I don&#39;t think so...<br>
> |<br>
> |I had a similar problem and someone told me that it was a pbs known<br>
> |issue. Something where pbs puts a random number and then has some kind<br>
> |of DNS sense.<br>
> |<br>
> |*Anyway, do your security checks!<br>
> |<br>
> |I&#39;ll look for that post.<br>
> |<br>
> |Cheers,<br>
> |Arnau<br>
> |_______________________________________________<br>
> |torqueusers mailing list<br>
> |<a href=3D"mailto:torqueusers at supercluster.org
> ">torqueusers at supercluster.or=
> |g</a><br>
> |<a href=3D"http://www.supercluster.org/mailman/listinfo/torqueusers"
> target=
> |=3D"_blank">http://www.supercluster.org/mailman/listinfo/torqueusers
> </a><br=
> |>
> |</blockquote></div><br><br clear=3D"all"><br>-- <br>-- <br>Beob Kyun Kim,
> P=
> |h. D.<br>NSDC Team/ Supercomputing Center/ KISTI<br>335 Kwahangno,
> Yuseong-=
> |gu, Daejeon, 305-806, South Korea<br><a href=3D"mailto:trugens at gmail.com
> ">t=
> |rugens at gmail.com</a>, <a href=3D"mailto:kyun at kisti.re.kr">
> kyun at kisti.re.kr<=
> |/a><br>
> |MSN : <a href=3D"http://trugens@hotmail.com/">trugens at hotmail.com/</a>
> &nbs=
> |p;GTalk : <a href=3D"http://trugens@gmail.com/">trugens at gmail.com/</a>
> &nbs=
> |p;NateOn : <a href=3D"mailto:numdle at nate.com">numdle at nate.com</a><br>Phone
> =
> |: +82-42-869-0782/ &nbsp;Mobile : +82-10-4422-1584/ &nbsp;Fax :
> +82-42-869-=
> |0789<br>
> |
> |
> |--000e0cd2c0cceb3d0a04632666f3--
> |
> |--===============0264760169==
> |Content-Type: text/plain; charset="us-ascii"
> |MIME-Version: 1.0
> |Content-Transfer-Encoding: 7bit
> |Content-Disposition: inline
> |
> |_______________________________________________
> |torqueusers mailing list
> |torqueusers at supercluster.org
> |http://www.supercluster.org/mailman/listinfo/torqueusers
> |
> |--===============0264760169==--
> |
>
>
> --
> Miles O'Neal
>
> Intrinsity, Inc.       |    meo at intrinsity.com
> 11612 Bee Caves Rd.    |    512-421-2242 (v)
> Bldg II / Suite 200    |    512-577-3133 (c) <- best bet
> Austin, Texas 78738    |    512-263-0795 (f)
>



-- 
-- 
Beob Kyun Kim, Ph. D.
NSDC Team/ Supercomputing Center/ KISTI
335 Kwahangno, Yuseong-gu, Daejeon, 305-806, South Korea
trugens at gmail.com, kyun at kisti.re.kr
MSN : trugens at hotmail.com/  GTalk : trugens at gmail.com/  NateOn :
numdle at nate.com
Phone : +82-42-869-0782/  Mobile : +82-10-4422-1584/  Fax : +82-42-869-0789
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.supercluster.org/pipermail/torqueusers/attachments/20090218/9da9cb74/attachment-0001.html


More information about the torqueusers mailing list