LISTSERV mailing list manager LISTSERV 15.5

Help for NORDNOG Archives


NORDNOG Archives

NORDNOG Archives


View:

Next Message | Previous Message
Next in Topic | Previous in Topic
Next by Same Author | Previous by Same Author
Chronologically | Most Recent First
Proportional Font | Monospaced Font

Options:

Join or Leave NORDNOG
Reply | Post New Message
Search Archives


Subject: Re: Customer guide?
From: Måns Nilsson <[log in to unmask]>
Reply-To:Network management discussion for Nordic region <[log in to unmask]>
Date:Sun, 24 Nov 2002 23:28:19 +0100
Content-Type:text/plain
Parts/Attachments:
Parts/Attachments

text/plain (44 lines)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1



- --On Sunday, November 24, 2002 22:42:02 +0100 John Angelmo
<[log in to unmask]> wrote:

> Hello
>
> After reading the latest NPN http://www.isoc-se.a.se/natnytt/NpN51.html
> One thing that was intresting to read about DoS attacks.
> What I'm wondering now if ISPs could help their customers with guides
> how to block DoS attacks, it would be an easy/cheap way to protect
> ISPs/customers against attacks or are there to much politics involved?

Unfortunately, no, there are no simple solutions. Most measures you can
make mainly protect others from mishaps in your network -- which of course
should not stop you from doin. Obvious short list would probably be:

* Secure your systems so that they are less likely to be taken and
  used as attack nodes.

* Make sure your networks filter out spoofed packets coming from
  "inside" -- only your own or customer addresses should be in the
  source field of packets leaving your border router outbound.

* Watch your lines and your interfaces for unusual trends.
  Investigate and follow up.

* Make certain you read your abuse mailbox.

- --
Måns Nilsson            Systems Specialist
+46 70 681 7204         KTHNOC  MN1334-RIPE

We're sysadmins. To us, data is a protocol-overhead.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.7 (OpenBSD)

iD8DBQE94VKD02/pMZDM1cURAnPrAJoCKPBsFG7cmvL/fxPrQvKrmrF9cQCeI2qf
ODL4oY8vR9cOCVmenIj3Mis=
=HukW
-----END PGP SIGNATURE-----

Back to: Top of Message | Previous Page | Main NORDNOG Page

Permalink



LISTSRV.NORDU.NET

CataList Email List Search Powered by the LISTSERV Email List Manager