If you start blowing up sattelites in stable orbits, you are playing a kind of russian roulette that could start a chain reaction, destroying all satellites in a given orbit zone.
Just like if you start cutting the under sea communication cables, it encourages others to respond in kind.
This is not an easy concept for people to wrap their heads around. I blame Star Trek...any time Enterprise breaks orbit it just "flies away."
Having read Niven's Integral Trees and The Smoke Ring many times, I just about jumped up to cheer when watching the pilot to Firefly where the Reaver ship used its engines in opposition to its direction of travel before flipping around for atmospheric entry.
RS-232 and RS-422 data cables often have the shield connected only at one end and separate from the signal ground to prevent conducted interference from coupling to the signal wires. Single ended audio cables are always going to be susceptible to ground loops whether they are shielded or not. It is not the shield itself causing the problem but the difference in ground potential between two difference pieces of equipment when ground is used as the reference for the audio signal. In extreme cases, the ground difference can blow the signal ground where it is weakest like on the pc board where the trace meets the connector.
The solutions for audio ground loops include using a star ground for all of the equipment, using balanced connections, or using some form of signal ground isolation. My own favorite solutions are to use a controlled current source for the line driver (audio cable shielding now becomes more important) or use an instrumentation amplifier on the receive side to subtract the ground noise or sometimes both.
IPsec would be the best option that is currently implemented right now, right? The main trick would be key distribution to prevent a MitM attack. The problem with what Comcast is doing is that it is before the application layer, in the TCP connections, so you can't use TCP or anything above TCP.
IPSEC would certainly prevent the forged TCP RST attack since it protects the TCP flags (despite what I posted a few weeks ago when I confused the IP flags used to handle fragmentation with the TCP flags). Since the tracker already maintains a list of seed and peer IPs for new peers joining the swarm, it could also keep a list of public keys. Peers supporting peer exchange could also supply the public keys for known peer IPs.
The three color receptors are relatively broad. I remember reading about a study where they presented subjects across the world with color chips to find out which shades of red, green, and blue were the most saturated. The idea was to see if everybody saw color in the same way excluding the known forms of color blindness and tetrachromates. Everybody picked the same shade of red and blue but there were two different shades of green which they later tracked down to two different alleles for the gene which encodes the green receptor molecule.
IPv6 over IPv4 tunneling to the rescue! And as a bonus, not only does the loss of efficiency mean more total traffic but everything can be encrypted using IPSEC.
I KNEW porn and p2p would speed the adoption of IPv6.
That's the most interesting thing I've read on here so far. I don't suppose you have any links to more information on it?
Chapter 7 of Genome by Matt Ridley briefly discusses what happened Nicaragua in connection with the human instinct for languages:
Bickerton's hypothesis has received remarkable support from the study of sign language. In one case, in Nicaragua, special schools for the deaf, established for the first time in the 1980s, led to the invention, de novo, of a whole new language. The schools taught lip-reading with little success, but in the playground the children brought together the various hand signs they used at home and established a crude pidgin language. Within a few years, as younger children learnt this pidgin, it was transformed into a true sign language with all the complexity, economy, efficiency, and grammar of a spoken language. Once again, it was children who made the language, a fact that seems to suggest that the language instinct is one that is switched off as the child reaches adulthood. . .
The distribution of the population is more important then the overall population density. The United States is unusual in having such a large proportion of its population outside of its urban areas. On average, the communications infrastructure has to cover a larger area for a given number of people.
Assuming people use statefull packet inspection firewalls with a "outbound and replies to outbound only" policy the hole punch routines will have to stay.
Sure. But without network address translation, protocols like IPSEC will work end to end and proxies for inspecting and rewriting packet payload will not be necessary. UPNP will no doubt still be used (and a serious security risk) for punching holes in the firewall but at least the few-to-many address mapping problem which breaks many protocols will be gone. FTP will of course still be broken.
Routers that support NAT act like a stateful firewall as a side effect of the NAT process itself. There is nothing to preclude building a stateful firewall without NAT that provides all of the same security functions and as other posters have pointed out they are the rule rather then the exception. Set the firewall to block all incoming connections and pass/track all outgoing connections. Then add selective incoming pass/track rules where appropriate. At least with BSD, you have to go out of your way NOT to track state. The only difference is the lack of address and port translation/fowarding which become obsolete since every device had a dedicated routable IP address.
Between broadcast channels is a padding space meant to shield adjacent channels from sub-standard broadcasting equipment that might cause a frequency drift.
For mobile transmitters this has often been a consideration but stationary broadcast transmitters have almost always had very accurate frequency references. Before GPS timed frequency standards became available, using a local VHF TV carrier while rebroadcasting a network program as a calibration source worked even better then using WWV.
Receiver selectivity is another matter. Even if every transmitter is exactly on frequency, consumer radio equipment tends to suffer from adjacent channel interference caused by poor selectivity and in the case of mobile transmitters, out of channel modulation.
Re:I thought those things were already broken
on
Yahoo CAPTCHA Hacked
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· Score: 1
I don't think you're right; the 5th has been held to only apply to testimonial evidence. E.g., you can't refuse to give blood or fingerprints, even if they're incriminating, because they're not straight testimony. That said, I don't know of an instance in U.S. law where a criminal defendant was compelled to produce encryption keys.
The recent 5th amendment case concerned this very issue. The government did not even ask for the encryption key but instead asked that the defendant enter the key into the computer arguing that it would not be testimony and therefore would not be protected but the federal judge ruled for the defendant and the government has appealed:
The only relevant question is whether a cop stopping you for speeding or running a red light has probable cause to search your papers and personal effects for anything else. Which they obviously don't, especially since they've already got all the evidence of the moving violation crime they're accusing you of, and your preexisting papers could contain evidence of that only if they are accusing you of premeditated moving violations, which I think isn't even a legal charge.
The problem here is that, as the article points out, the courts have ruled that the search incident to arrest is completely legal in states which do not expressly forbid it.
As the paper points out, the question of whether a search incident to arrest includes locked containers has not been significantly tested in court. I know of several people including myself who have small safes designed for pistols bolted to the floor inside their car somewhere for storing valuables during travel for this very reason. A container secured by a key lock would obviously not be safe in this case.
The recent 5th amendment case asking whether the right against self incrimination includes passwords could ultimately be even more important.
That is a major cause for the rule. Junctions suffer from diffusion and anything not hermetically sealed suffers from evaporation if it has a liquid. Mechanical stress fracturing is the other major problem and is the significant one with the XBox 360.
Slashdot Mirror
Lazy evaluation could certainly explain quantum mechanics.
I have had IPv6 connectivity for more then a year and there are a couple of rules:
The first rule about IPv6 file sharing is . . . do not talk about IPv6 file sharing.
Just like if you start cutting the under sea communication cables, it encourages others to respond in kind.
Having read Niven's Integral Trees and The Smoke Ring many times, I just about jumped up to cheer when watching the pilot to Firefly where the Reaver ship used its engines in opposition to its direction of travel before flipping around for atmospheric entry.
RS-232 and RS-422 data cables often have the shield connected only at one end and separate from the signal ground to prevent conducted interference from coupling to the signal wires. Single ended audio cables are always going to be susceptible to ground loops whether they are shielded or not. It is not the shield itself causing the problem but the difference in ground potential between two difference pieces of equipment when ground is used as the reference for the audio signal. In extreme cases, the ground difference can blow the signal ground where it is weakest like on the pc board where the trace meets the connector.
The solutions for audio ground loops include using a star ground for all of the equipment, using balanced connections, or using some form of signal ground isolation. My own favorite solutions are to use a controlled current source for the line driver (audio cable shielding now becomes more important) or use an instrumentation amplifier on the receive side to subtract the ground noise or sometimes both.
IPSEC would certainly prevent the forged TCP RST attack since it protects the TCP flags (despite what I posted a few weeks ago when I confused the IP flags used to handle fragmentation with the TCP flags). Since the tracker already maintains a list of seed and peer IPs for new peers joining the swarm, it could also keep a list of public keys. Peers supporting peer exchange could also supply the public keys for known peer IPs.
PC Load Letter
The three color receptors are relatively broad. I remember reading about a study where they presented subjects across the world with color chips to find out which shades of red, green, and blue were the most saturated. The idea was to see if everybody saw color in the same way excluding the known forms of color blindness and tetrachromates. Everybody picked the same shade of red and blue but there were two different shades of green which they later tracked down to two different alleles for the gene which encodes the green receptor molecule.
So . . . sword fights are out?
IPv6 over IPv4 tunneling to the rescue! And as a bonus, not only does the loss of efficiency mean more total traffic but everything can be encrypted using IPSEC.
I KNEW porn and p2p would speed the adoption of IPv6.
It is a good thing the government would never shop around for an easily manipulated test case to undermine the Constitution and Bill of Rights:
http://volokh.com/posts/1179865714.shtml
Don't travel with citrus. It tends to explode.
Chapter 7 of Genome by Matt Ridley briefly discusses what happened Nicaragua in connection with the human instinct for languages:
Bickerton's hypothesis has received remarkable support from the study of sign language. In one case, in Nicaragua, special schools for the deaf, established for the first time in the 1980s, led to the invention, de novo, of a whole new language. The schools taught lip-reading with little success, but in the playground the children brought together the various hand signs they used at home and established a crude pidgin language. Within a few years, as younger children learnt this pidgin, it was transformed into a true sign language with all the complexity, economy, efficiency, and grammar of a spoken language. Once again, it was children who made the language, a fact that seems to suggest that the language instinct is one that is switched off as the child reaches adulthood. . .
The distribution of the population is more important then the overall population density. The United States is unusual in having such a large proportion of its population outside of its urban areas. On average, the communications infrastructure has to cover a larger area for a given number of people.
Only if it is followed by burning them alive.
Sure. But without network address translation, protocols like IPSEC will work end to end and proxies for inspecting and rewriting packet payload will not be necessary. UPNP will no doubt still be used (and a serious security risk) for punching holes in the firewall but at least the few-to-many address mapping problem which breaks many protocols will be gone. FTP will of course still be broken.
Routers that support NAT act like a stateful firewall as a side effect of the NAT process itself. There is nothing to preclude building a stateful firewall without NAT that provides all of the same security functions and as other posters have pointed out they are the rule rather then the exception. Set the firewall to block all incoming connections and pass/track all outgoing connections. Then add selective incoming pass/track rules where appropriate. At least with BSD, you have to go out of your way NOT to track state. The only difference is the lack of address and port translation/fowarding which become obsolete since every device had a dedicated routable IP address.
Adam Savage's tech annoyances are more then balanced out by the enjoyment one gains watching him hurt himself.
For mobile transmitters this has often been a consideration but stationary broadcast transmitters have almost always had very accurate frequency references. Before GPS timed frequency standards became available, using a local VHF TV carrier while rebroadcasting a network program as a calibration source worked even better then using WWV.
Receiver selectivity is another matter. Even if every transmitter is exactly on frequency, consumer radio equipment tends to suffer from adjacent channel interference caused by poor selectivity and in the case of mobile transmitters, out of channel modulation.
I have heard it called a mechanical turk.
http://slashdot.org/comments.pl?sid=67838&cid=6216434
I don't think you're right; the 5th has been held to only apply to testimonial evidence. E.g., you can't refuse to give blood or fingerprints, even if they're incriminating, because they're not straight testimony. That said, I don't know of an instance in U.S. law where a criminal defendant was compelled to produce encryption keys.
The recent 5th amendment case concerned this very issue. The government did not even ask for the encryption key but instead asked that the defendant enter the key into the computer arguing that it would not be testimony and therefore would not be protected but the federal judge ruled for the defendant and the government has appealed:
http://yro.slashdot.org/article.pl?sid=07/12/15/1459243
Like the search incident to arrest scenario when the officer finds a locked container, this matter has not been settled in law.
The problem here is that, as the article points out, the courts have ruled that the search incident to arrest is completely legal in states which do not expressly forbid it.
As the paper points out, the question of whether a search incident to arrest includes locked containers has not been significantly tested in court. I know of several people including myself who have small safes designed for pistols bolted to the floor inside their car somewhere for storing valuables during travel for this very reason. A container secured by a key lock would obviously not be safe in this case.
The recent 5th amendment case asking whether the right against self incrimination includes passwords could ultimately be even more important.
Dogbert: Regrettably, you violated my airspace.
That is a major cause for the rule. Junctions suffer from diffusion and anything not hermetically sealed suffers from evaporation if it has a liquid. Mechanical stress fracturing is the other major problem and is the significant one with the XBox 360.