Home | Community | Message Board


Marijuana Demystified
Please support our sponsors.

General Interest >> Science and Technology

Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Jump to first unread post. Pages: 1
Invisiblefunkymonk
Get's down, withthe get-down.
 User Gallery

Registered: 11/29/02
Posts: 8,160
Loc: saskatchewan
DoS'
    #2341156 - 02/16/04 02:52 PM (14 years, 4 months ago)

So does anyone here consider themselves knowledgble with Denial of Service attacks?


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleTinMan
Stranger

Registered: 10/01/02
Posts: 2,956
Loc: Russia
Re: DoS' [Re: funkymonk]
    #2341210 - 02/16/04 03:07 PM (14 years, 4 months ago)

Why? Just ask your question, not one that will receive yes/no answers.


Post Extras: Print Post  Remind Me! Notify Moderator
Invisiblefunkymonk
Get's down, withthe get-down.
 User Gallery

Registered: 11/29/02
Posts: 8,160
Loc: saskatchewan
Re: DoS' [Re: TinMan]
    #2341493 - 02/16/04 04:03 PM (14 years, 4 months ago)

Well basically, I understand what a DoS is... I just don't know how to do do them, I don't want to do one, i'd just like to understand them to an extend further than the definition..

if that makes sense


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineAnnoA
Experimenter
 User Gallery

Folding@home Statistics
Registered: 06/18/99
Posts: 24,123
Loc: my room
Last seen: 14 days, 28 minutes
Re: DoS' [Re: funkymonk]
    #2341511 - 02/16/04 04:05 PM (14 years, 4 months ago)

Google knows the answer.


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineSeussA
Error: divide byzero

Folding@home Statistics
Registered: 04/27/01
Posts: 23,480
Loc: Caribbean
Last seen: 28 days, 4 minutes
Re: DoS' [Re: funkymonk]
    #2341631 - 02/16/04 04:29 PM (14 years, 4 months ago)

> i'd just like to understand them to an extend further than the definition..

Here is a simple example:

In networking, there is a thing called a broadcast address. When you send a packet to a broadcast address, it sends the data to all the machines on the network instead of a single machine. Broadcast addresses end in 255, so if do something like 'ping 192.168.0.255', all of the machines on the network 192.168.0.0 will respond to your ping. Now, if you forge the return address of the ping packet to look like it came from somebody else, when you ping the broadcast address, all of the machines return a packet to the forged return address rather than you. Now some target machine on the network is getting slammed by return ping packets that you are indirectly creating. If the target tries to track you down, they have a hard time because then end up following a forged return address. This type of thing really pisses off network admins, and they will go after you with the big arm of the law when possible.

The ping attack was one of the first ones that was used. Almost every router on the internet is now configured to not route broadcast packets making the attack useless.

A friendly warning... if you get into the DoS world and start to play around with it, you will eventually get nailed (unless you are very good or very lucky). I have zero sympathy for people that DoS other sites (even SCO and Microsoft, as much as I hate those two companies). It is cool to learn about how a DoS works, but don't get busted playing a 'joke' on your friend. Most network admins think castration is a pretty good punishment for this crime, and I am right there with them.


--------------------
Just another spore in the wind.


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleTinMan
Stranger

Registered: 10/01/02
Posts: 2,956
Loc: Russia
Re: DoS' [Re: Seuss]
    #2342915 - 02/16/04 09:12 PM (14 years, 4 months ago)

Thats called a smurf attack, right?


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineT0aD
Stranger

Registered: 06/18/02
Posts: 4,475
Last seen: 9 years, 3 months
Re: DoS' [Re: Seuss]
    #2344425 - 02/17/04 03:50 AM (14 years, 4 months ago)

that was well written man, thanks alot for sharing.
but how do you fake the ping to return the ping packet to your target, and not to you? What techniques do DoS flooders use here?
Also, is all DoS ICMP-based? Peace and be happy


--------------------
Cuba Libre


Post Extras: Print Post  Remind Me! Notify Moderator
Invisiblefunkymonk
Get's down, withthe get-down.
 User Gallery

Registered: 11/29/02
Posts: 8,160
Loc: saskatchewan
Re: DoS' [Re: T0aD]
    #2344506 - 02/17/04 05:48 AM (14 years, 4 months ago)

Awesome, thanks seuss,,

I agree with you whole heartedly about DoS' I was just curious as to what all the talk about them was, and how they work....

I remeber ping flood from back in the day..haha mIRC :P


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineSeussA
Error: divide byzero

Folding@home Statistics
Registered: 04/27/01
Posts: 23,480
Loc: Caribbean
Last seen: 28 days, 4 minutes
Re: DoS' [Re: TinMan]
    #2344535 - 02/17/04 06:10 AM (14 years, 4 months ago)

> Thats called a smurf attack, right?

Correct. First surfaced in the mid '90s and isn't really a problem anymore, which is why I choose that attack to describe.

> but how do you fake the ping to return the ping packet to your target

Same way that you fake a return address when sending a letter in the mail. In unix-land you use something called a raw socket which requires root access.

> is all DoS ICMP-based

No.


--------------------
Just another spore in the wind.


Post Extras: Print Post  Remind Me! Notify Moderator
Jump to top. Pages: 1

General Interest >> Science and Technology

Similar ThreadsPosterViewsRepliesLast post
* Why do I keep having this problem? User Exists 1,584 12 08/22/03 01:08 PM
by User Exists
* HOw do i get to the Dos promt on XP to format? KoOs 1,025 7 12/26/02 01:22 PM
by luvdemshrooms
* DOS 95....? Need disk. Stein 701 4 09/02/03 10:09 PM
by riffic
* do you believe it is possible
( 1 2 3 all )
spud 2,996 41 03/11/03 01:03 PM
by iconoclast
* How do i get an IP from an email? RESET32one 1,276 5 05/22/02 03:12 AM
by Lana
* How do you backup email in Eudora??? LanaM 707 4 05/03/03 03:52 AM
by UrQuattro
* Do internaional parcels get x-rayed? Ellis Dee 863 3 04/03/02 01:33 PM
by Liquid Squid
* sooo how do I get rid of msblaster?? Anonymous 817 14 08/14/03 11:25 PM
by riffic

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: Lana, trendal, automan
722 topic views. 0 members, 2 guests and 1 web crawlers are browsing this forum.
[ Toggle Favorite | Print Topic | Stats ]
Search this thread:
FreeSpores.com
Please support our sponsors.

Copyright 1997-2018 Mind Media. Some rights reserved.

Generated in 0.032 seconds spending 0.005 seconds on 19 queries.