Bugtraq mailing list archives
Re: [Full-Disclosure] RE: [PAPER] Juggling with packets: floating data storage
From: Michal Zalewski <lcamtuf () ghettot org>
Date: Wed, 8 Oct 2003 19:53:41 +0200 (CEST)
On Wed, 8 Oct 2003, Alun Jones wrote:
A real juggler would focus on a different kind of outsourced dataOf course, a real network engineer would remind you that you face two immediate problems regarding this technique: 1. [UDP] Jugglers don't usually have to deal with oranges suddenly disappearing in midflight, or being duplicated.
Not really; the problem is trivially solved by maintaining a redundancy of the data. Choosing the right parameters to maintain realiability is perhaps the only challenge here, and it depends on the environment and the set of bounce hosts.
2. [TCP] Jugglers don't have to hold onto a copy of their thrown orange until such time as the catching hand lets them know that it's been caught.
No need to - the problem is solved by fire-and-forget + redundancy, likening TCP to UDP; in addition, the paper proposes a method of storing data using mechanisms such as a sustained command on the remote server, where there is no need to resend the data on a regular basis, so even if you use reliable TCP/IP stack, there is no need to keep any data for an extended period of time on your end. Cheers, -- ------------------------- bash$ :(){ :|:&};: -- Michal Zalewski * [http://lcamtuf.coredump.cx] Did you know that clones never use mirrors? --------------------------- 2003-10-08 19:49 -- http://lcamtuf.coredump.cx/photo/current/
Current thread:
- Re: [Full-Disclosure] RE: [PAPER] Juggling with packets: floating data storage Michal Zalewski (Oct 08)