Utility against Denial Of Service attack

[Andrew]

Re: Utility against Denial Of Service attack

James wrote:
>I have heard about Denial of Service attacks on Yahoo, Amazon and
>several other popular sites. They all had fallen.
>I heard that it was very serious risk.
>Where can I find a tool to protect my global and local network?

Answer

I use TCP Shield for protection agains such attacks.
You can find it at http://www.softforces.com/ntsec.htm

Andrew

[Thomas Bueschgens]

On Fri, 14 Jul 2000 17:18:31 +0400, "Andrew" <andr...@aol.com>
said:

Andrew> Re: Utility against Denial Of Service attack James wrote:
>> I have heard about Denial of Service attacks on Yahoo, Amazon and
>> several other popular sites. They all had fallen. I heard that it
>> was very serious risk. Where can I find a tool to protect my global
>> and local network?

Well, that Attack (feb this year) was a DDOS, Distributed Denial of
Service Attack.

There (til now) no such thing as a "program" that will protect you.

Andrew> Answer

Andrew> I use TCP Shield for protection agains such attacks. You can
Andrew> find it at http://www.softforces.com/ntsec.htm

I doubt that. Just imagine not only one skript-kiddie banging your
door, but thousands of agents flood-pinging you. What would happen?

1. My Network-Connection goes down due to high load... no "real"
traffic comes trough... this one looks like a SNR-Problem. (This is
the likely scenario... just think of WHAT kind of internet-link
yahoo and alike have... T-something... and you?)

2. You have a "fat" link into the net, so you computer will choke,
cause it will cost him CPU-Cycles to deal with the
packets.... esp. if they are composed to do so (fragmentation,
illegal values, whatever).

See: It is like the students ordering 1000 pizzas to ONE
address... there is no such thing like protection against this
one... besides not living near a university... might be.

Regards,

Tom

--
Thomas Bueschgens PGP-key available at server or via email
sle...@acm.org sle...@seconet.de