DDos [7:9673]

2001-06-24 Thread shella kevin

Can anyone help me understand what is DDos.

cheer
S. Kevin
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RE: DDos [7:9673]

2001-06-24 Thread marc maréchal

A Denial of Service atack is one that's aimed entirely at preventing you
from using your own computers.

There is some kind of Dos attacks : 

Brute force attack : 
A system or network is flooded - whith messages, proceses, or network
requests - so that no real work can be done. The system or network spends
all its time responding to messages and requests, and can't satisfy any of
them.
Examples are Smurf, broadcast relay, Echo-chargen

One-packet kill :
Attacks that involve sending small amounts of data that cause machines to
reboot or hang.
Examples are Teardrop, Land, Ping of Death, Land, Doom.

DDoS :

Denial of Service from serveral hosts at a time.


I hope I have asked your question. 

In the case you want much information, I recomend you some good readings
accessible for everyone, but provide very good information on the topic :
Building Internet Firewalls, Second Edition. ISBN : 1-56592-871-7
Network Intrusion Detection, An Analyst's Handbook, Second Edition.
ISBN : 0-7357-1008-2. 

 


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RE: DDos [7:9673]

2001-06-24 Thread shella kevin

Is there any thing related to Cisco routers ? Are Cisco router also comes 
unders DDos ?
--S kevin


From: marc marichal 
Reply-To: marc marichal 
To: [EMAIL PROTECTED]
Subject: RE: DDos [7:9673]
Date: Sun, 24 Jun 2001 05:13:16 -0400

A Denial of Service atack is one that's aimed entirely at preventing you
from using your own computers.

There is some kind of Dos attacks :

Brute force attack :
A system or network is flooded - whith messages, proceses, or network
requests - so that no real work can be done. The system or network spends
all its time responding to messages and requests, and can't satisfy any of
them.
Examples are Smurf, broadcast relay, Echo-chargen

One-packet kill :
Attacks that involve sending small amounts of data that cause machines to
reboot or hang.
Examples are Teardrop, Land, Ping of Death, Land, Doom.

DDoS :

Denial of Service from serveral hosts at a time.


I hope I have asked your question.

In the case you want much information, I recomend you some good readings
accessible for everyone, but provide very good information on the topic :
Building Internet Firewalls, Second Edition. ISBN : 1-56592-871-7
Network Intrusion Detection, An Analyst's Handbook, Second Edition.
ISBN : 0-7357-1008-2.
_
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RE: DDos [7:9673]

2001-06-24 Thread marc maréchal

Yes they are.

You can find a paper on CCO about DDoS : 

http://www.cisco.com/warp/public/707/newsflash.html


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