disLEXia

Friday, 16. May 2003

nmap fighting the evil forces in matrix reloaded

Von: Fyodor <fyodor@insecure.org>
An: nmap-hackers@insecure.org

[...] So after waiting an hour in a line snaking out of the theatre to the
parking lot, I finally got in to my 10pm Wednesday showing.  All was
going well until Trinity needed to do some hacking.  Oh, no!  I was
sure we'd see a silly "Hackers"-esque 3D animated "hacking scene".
Not so!  Trinity is as smart as she is seductive!  She whips out
Nmap (!!!), scans her target, finds 22/tcp open, and proceeds with an
über ssh technique!  I was so surprised, I almost jumped out of my
seat and did the "r00t dance" right there in the theatre! [...]

"The Internet was designed to survive a nuclear strike"

Professor Dr. Fritjof Haft und Wiss. Assistent Dr. Jörg Eisele, JuS 2001, S. 112:

Der Ursprung des Internets lässt sich bis in die 60er Jahre zurückverfolgen. Verteidigungsexperten der USA wollten durch eine dezentrale Vernetzung von Militärcomputern verhindern, dass durch die Zerstörung einer Netzverbindung im Falle eines Raketenangriffs die Kommando- und Kommunikationsstruktur des Verteidigungssystems blockiert wird (Vgl. dazu und zur weiteren Geschichte des Internets die Darstellungen bei Bleisteiner, Rechtliche Verantwortlichkeit im Internet, 1999, S. 15f.; Finke, Die strafrechtliche Verantwortung von Internet-Providern, 1998, S. 3f.; Jofer (o. Fußn. 1), S. 13ff.; Ohliger, in: Hoeren/Sieber (Hrsg.), Hdb. Multimedia Recht, Loseblattslg., Stand Febr. (2000), Teil 1 Rdnrn. 7ff.). Dazu war die Schaffung eines ausfallsicheren Rechnernetzes erforderlich, welches ohne einen zentralen Server auskommen und dessen einzelne Teile unabhängig voneinander operieren konnten. Der Vorteil eines solchen Netzes liegt grundsätzlich darin, dass Datenpakete auf verschiedenen Wegen zum Zielrechner gelangen können. Wird ein Teil des Netzes zerstört, so beeinträchtigt dies letztlich nicht seine Gesamtfunktion. Aus diesem Grund wurde im Jahre 1969 durch den Zusammenschluss verschiedener Hochleistungsrechner von militärischen Stellen und von Forschungseinrichtungen unter dem Namen ?Advanced Research Project Agency Net? - ?ARPANET? ein vornehmlich militärisches Netz als Vorläufer des Internets geschaffen.

Again and again I read claims by extremly competent people that the internet was designed to survive a nuclear strike and to be used for military purpuses e.g. as a communication and command network. I can't belive that. Every little bit of Internt design and of the Internt design process is so completely un-military that this can't be. To everybody who has the slightes understanding how military security systems are build (in times before they desired to use COTSS) and how the Internet works this should be obvious. Everythin in the Internet design screems "research network" to me.

So why is this urban legend so wide spread? Any hints?
11:08 | permanent link | mail this

Blocking of web content is in fact blocking of all communication

When doing DNS-Tampering to block unwanted Web content you block not only Web access but most other kinds of Internet access to the blocked site. This is because of the fact that DNS as deployed on the Interntet today can't destinguish between different services like Web, Chat, File Transfer and the like.

A notable exception is Mail. The DNS holds special records for mail routing called "MX records" (Mail Exchanger records). All other services are reverenced via so called "A records" (Address records). To block Web access via DNS tampering you have to modify the A records in a domain. MX records can stay as they are.

My recent empirical research shows that all DNS recursive resolver Servers I found tampering with A records also damaged MX records denying mailservice to the domain of the blocked website.

Collateral Damage?
21:17 | permanent link | mail this

Repetitor

The Transblawg has an interesting pice about "Repititors" (my favorite translation is "crammer").

I think I can add some little fragments about the history of Repititorien. To my knowledge the first famous Repetitorium was founded after WWII by Mr. Schneider in Bonn. Schneider was extremly famous partly because many influencal people studied laws in Bonn and went to Schneider. Schneider must have been furious: Jumpung up and down on a little stage which contained only a red coctail chair he must have been yelling most of the time jumping up and down with a red head. Sometimes, when he got even more excited than already in his normal state, he jumed screaming on the chair. Windows had to be opened all year long, people complaining about this where called by him 'test tube babys'. Long haired studends hat to stay in the "Gammelkäfig", a seperate room only connected to the main room vie loudspreakers so he had not to endure the view.

Direct after the War the British military government wanted him to be general prosecuter because he was clearly no Nazi. When he refused they told him that they could force him ... which lead him to getting mentally ill (mad? he was allwas mad) for some time. Might have been a brilliant move or an illness.

Most of his example cases contained sex and (obvious - at least for criminal law) crime. He had certain figures apearing in so many of his cases that some of them geo an life of it's own. E.g. Josepha Tramm, "Dancer" (pronunce the quotationmarks clearly!) I have seen several leters to the Editor in well known Newspapers and Magazines signed by "Josepha Tramm, Dancer, Bonn".

His Repititorium is now run by Andrea Klamser, also a very special kind of tutor. Klick on the link to see a drawing of the famous chair. She still uses the same rooms whith the same inventory, which was already in bad shape 50 years ago. The building itself is decorated with an large marble onrament carrying Schneiders closing used in every lession: "So much for today ..."

BTW: My Parents met at the Repetitorium Schneider. And I went to Mrs Klamser.
21:53 | permanent link | mail this

disLEXia, a research project by Maximillian Dornseif