Maybe. One thing I am certain about however is that Comcast is courting a tragedy of the commons. As more high volume internet traffic has to resort to obfuscation, it will become more difficult to apply accurate traffic shaping where it is really useful. What do you do when everything looks like IPSEC and SSL or - God forbid - streaming video?
Unless the packet header was encrypted or authenticated watching for a bad TCP sequence number will not help in this case. Comcast is already in the position of being the man in the middle so they can forge the correct TCP sequence number easily.
Sure you could modify the source to ignore the RST flag, but that would probably completely hose your networking, since it's sort of an integral part of TCP/IP functioning. Sometimes the packet with FIN set does get lost.
You would only have to block the RST packets on connections which are to specific ports. This can also be the case with bittorrent if setup appropriately.
I guess it might work for a while until you ran out of memory for tracking state of all the connections that never close.
At least with the stateful firewalls I use, the timeout for dropping a specific connection can be given an appropriate value to prevent this from happening.
Nix the DDR3 ECC comment. Crucual's dynamically updated page leave something to be desired. DDR3 ECC would seem to be rather rare so perhapse Intel was not in a position to test with it.
That occurred to me but DDR2-800 supports ECC while DDR3-800 does not. DDR3 ECC is widely available so I also doubt it was for lack of modules to test.
I examined Intel's documentation and did not find any specific reason for the lack of DDR3 ECC support. The memory controller uses the same burst length for both memory types and the 64,72 hamming code should work in either single or dual channel mode. None of the immediately preceding chipsets support ECC at all.
Intel's chipset comparison page and datasheet are somewhat informative. Apparently, the X38 chipset supports ECC when using DDR2 but not when using DDR3.
The FBI has already used a court order to do this in at least one criminal case but Onstar responded with a suit that recently was ruled on in appeal:
"The 9th Circuit Court of Appeals said Tuesday that the FBI is not legally entitled to remotely activate the system and secretly use it to snoop on passengers, because doing so would render it inoperable during an emergency."
This only applies in California, Oregon, Nevada, Washington, Hawaii, and other states that fall within the 9th Circuit's jurisdiction so I presume the FBI can still do this in other areas. If the FBI can avoid interfering with the service itself when using it for interception then the order blocking this activity may not matter.
To be fair, early transistors inexpensive enough for tube replacement would not have the performances necessary for RF and IF applications. Hybrid designs were quite common until it became cheaper to use transistors throughout.
My only complaints are the lack of the Scouring of the Shire and associated theme involving the changes in the fellowship hobbits, the addition of Frodo's excursion to Osgiliath, and perhaps Galladrial not being quite creepy and unsettling enough although I am at a loss for how she could have been improved.
Jackson did an outstanding job considering the typical Hollywood treatment.
Do you think so? Every time I read news about an exploit that can be used to transfer an agent using a digital media file, I think of this passage from Fire Upon the Deep.
Crypto: 0 As received by: Transceiver Relay03 at Relay Language path: Cloudmark -> Twiskweline, SjK units [Cloudmark is a High Beyond trade language. Despite colloquial rendering, only core meaning is guaranteed.] From: Transcendent Bafflements Trading Union at Cloud Center Subject: Matter of life and death Summary: Arbitration Arts has fallen to Straumli Perversion via a Net attack. Use Middle Beyond relays till emergency passes! Key phrases: Net attack, scale interstellar warfare, Straumli Perversion Distribution: War Trackers Interest Group, Threats Interest Group, Homo Sapiens Interest Group Date: 61.12 days since the fall of Straumli Realm Text of message:
WARNING! The site identifying itself as Arbitration Arts is now controlled by the Staumli Perversion. The Arts' recent advertisement of communications services is a deadly trick. In fact we have good evidence that the Perversion used sapient Net packets to invade and disable the Arts' defenses. Large portions of the Arts now appear to be under direct control of the Straumli Power. Parts of the Arts that were not infected in the initial invasion have been destroyed by the converted portions: Fly-throughs show several stellifications.
What can be done: If during the last thousand seconds you have received any High-Beyond-protocol packets from "Arbitration Arts," discard them at once. If they have been processed, then the processing site and all locally netted sites must be physically destroyed at once. We realize that this means the destruction of solar systems, but consider the alternative. You are under Transcendent attack.
If you survive the initial peril (the next thirty hours or so), then there are obvious procedures that can give relative safety: Do not accept High Beyond protocol packets. At the very least, route all communications through Middle Beyond sites, with translation down to, and then up from, local trade languages.
For the longer term: It's obvious that an extraordinarily powerful Class Two Perversion has bloomed in our region of the galaxy. For the next thirteen years or so, all advanced civilizations near us will be in great danger.
If we can identify the background of the current perversion, we may discover its weakness and a feasible defense. Class Two Perversions all involve a deformed Power that creates symbiotic structures in the High Beyond - but there is an enormous variety of origins. Some are poorly-formed jokes told by Powers no longer on the scene. Others are weapons built by the newly transcendent, and never properly disarmed.
The immediate source of this danger is well-documented: a species recently up from the Middle Beyond, Homo sapiens, founded Straumli Realm. We are inclined to believe the theory proposed in messages [ . . . ], namely that Straumli researchers experimented with something in Shortcuts, and that the recipe was a self-booting evil from an earlier time. One possibility: Some loser from long ago planted how-to's on the Net (or in some lost archive) for the use of its own descendants. Thus, we are interested in any information related to Homo sapiens.
Integration allows lower latencies and higher bandwidths at the expense of die size and perhaps packaging cost. The advantages of Intel's dual die quad core include improved yields because of smaller dies and larger cache at the cost of splitting the last level of cache between each pair of cores and increased packaging costs. AMD's quad core shares the entire last level of cache between the cores and has lower latency because of the on die memory controller but the cache is smaller.
Two discrete CPUs probably would outperform a dual core if all other things are equal but that is unlikely to be the case. The former could have twice the total die size and 3 or 4 times as much cache to make up for the lack of integration but die area is expensive never mind the dual socket motherboard.
The adversary is assumed to have perfect information about the randomization strategy, where the checkpoints are, etc.
It is like preparing to meet a Protector. You take lasers because they are so useful and one other weapon determined by die roll. If your adversary can predict all of your decisions, then decide to do something unpredictable.
Compared with 6 meters and above, HF can actually be difficult to track down both because of propogation and because of the characteristics of the electrically small antennas that would normally be used for mobile hunting. A skilled operator might also take advantage of beam forming combined with skip to mask the transmitter's location. (I've done that sort of thing in transmitter hunts at 2 meters and above but skip gets replaced with reflection and refraction. The beam forming becomes much easier though because of electrically larger antennas. Airplanes and skyscrapers make excellent decoy reflectors.) With the right band selection, sporadic world wide communication can be done with 5 watts or less. QRP (low power) HF contests for range are quite common.
'worn out' flash doesn't spontaneously change state. Bits just get stuck and don't erase correctly.
This is not completely true.
Read operations can cause bit failure within pages that are in the same block. It is common enough that reserve ECC capacity should be checked when verifying writes.
I love my vernier calipers. All of the young upstarts can not read them so I never have to go looking for them. For extra safety I store them on my lawn.
The sensor is certainly susceptible to physical damage given bright enough illumination. If only there was some way to focus a coherent beam of light from a distance . . .
Slashdot Mirror
Maybe. One thing I am certain about however is that Comcast is courting a tragedy of the commons. As more high volume internet traffic has to resort to obfuscation, it will become more difficult to apply accurate traffic shaping where it is really useful. What do you do when everything looks like IPSEC and SSL or - God forbid - streaming video?
Unless the packet header was encrypted or authenticated watching for a bad TCP sequence number will not help in this case. Comcast is already in the position of being the man in the middle so they can forge the correct TCP sequence number easily.
You would only have to block the RST packets on connections which are to specific ports. This can also be the case with bittorrent if setup appropriately.
At least with the stateful firewalls I use, the timeout for dropping a specific connection can be given an appropriate value to prevent this from happening.
Nix the DDR3 ECC comment. Crucual's dynamically updated page leave something to be desired. DDR3 ECC would seem to be rather rare so perhapse Intel was not in a position to test with it.
That occurred to me but DDR2-800 supports ECC while DDR3-800 does not. DDR3 ECC is widely available so I also doubt it was for lack of modules to test.
I examined Intel's documentation and did not find any specific reason for the lack of DDR3 ECC support. The memory controller uses the same burst length for both memory types and the 64,72 hamming code should work in either single or dual channel mode. None of the immediately preceding chipsets support ECC at all.
Maybe the cause is cost or marketing?
Intel's chipset comparison page and datasheet are somewhat informative. Apparently, the X38 chipset supports ECC when using DDR2 but not when using DDR3.
I have heard that Bob Widlar of Fairchild and National Semiconductor fame used to do this for vacations without even packing.
The FBI has already used a court order to do this in at least one criminal case but Onstar responded with a suit that recently was ruled on in appeal:
"The 9th Circuit Court of Appeals said Tuesday that the FBI is not legally entitled to remotely activate the system and secretly use it to snoop on passengers, because doing so would render it inoperable during an emergency."
http://www.news.com/2100-1029_3-5109435.html
This only applies in California, Oregon, Nevada, Washington, Hawaii, and other states that fall within the 9th Circuit's jurisdiction so I presume the FBI can still do this in other areas. If the FBI can avoid interfering with the service itself when using it for interception then the order blocking this activity may not matter.
To be fair, early transistors inexpensive enough for tube replacement would not have the performances necessary for RF and IF applications. Hybrid designs were quite common until it became cheaper to use transistors throughout.
My only complaints are the lack of the Scouring of the Shire and associated theme involving the changes in the fellowship hobbits, the addition of Frodo's excursion to Osgiliath, and perhaps Galladrial not being quite creepy and unsettling enough although I am at a loss for how she could have been improved.
Jackson did an outstanding job considering the typical Hollywood treatment.
Do you think so? Every time I read news about an exploit that can be used to transfer an agent using a digital media file, I think of this passage from Fire Upon the Deep.
Crypto: 0
As received by: Transceiver Relay03 at Relay
Language path: Cloudmark -> Twiskweline, SjK units
[Cloudmark is a High Beyond trade language. Despite colloquial rendering, only core meaning is guaranteed.]
From: Transcendent Bafflements Trading Union at Cloud Center
Subject: Matter of life and death
Summary: Arbitration Arts has fallen to Straumli Perversion via a Net attack. Use Middle Beyond relays till emergency passes!
Key phrases: Net attack, scale interstellar warfare, Straumli Perversion
Distribution: War Trackers Interest Group, Threats Interest Group, Homo Sapiens Interest Group
Date: 61.12 days since the fall of Straumli Realm
Text of message:
WARNING! The site identifying itself as Arbitration Arts is now controlled by the Staumli Perversion. The Arts' recent advertisement of communications services is a deadly trick. In fact we have good evidence that the Perversion used sapient Net packets to invade and disable the Arts' defenses. Large portions of the Arts now appear to be under direct control of the Straumli Power. Parts of the Arts that were not infected in the initial invasion have been destroyed by the converted portions: Fly-throughs show several stellifications.
What can be done: If during the last thousand seconds you have received any High-Beyond-protocol packets from "Arbitration Arts," discard them at once. If they have been processed, then the processing site and all locally netted sites must be physically destroyed at once. We realize that this means the destruction of solar systems, but consider the alternative. You are under Transcendent attack.
If you survive the initial peril (the next thirty hours or so), then there are obvious procedures that can give relative safety: Do not accept High Beyond protocol packets. At the very least, route all communications through Middle Beyond sites, with translation down to, and then up from, local trade languages.
For the longer term: It's obvious that an extraordinarily powerful Class Two Perversion has bloomed in our region of the galaxy. For the next thirteen years or so, all advanced civilizations near us will be in great danger.
If we can identify the background of the current perversion, we may discover its weakness and a feasible defense. Class Two Perversions all involve a deformed Power that creates symbiotic structures in the High Beyond - but there is an enormous variety of origins. Some are poorly-formed jokes told by Powers no longer on the scene. Others are weapons built by the newly transcendent, and never properly disarmed.
The immediate source of this danger is well-documented: a species recently up from the Middle Beyond, Homo sapiens, founded Straumli Realm. We are inclined to believe the theory proposed in messages [ . . . ], namely that Straumli researchers experimented with something in Shortcuts, and that the recipe was a self-booting evil from an earlier time. One possibility: Some loser from long ago planted how-to's on the Net (or in some lost archive) for the use of its own descendants. Thus, we are interested in any information related to Homo sapiens.
They repeat even the well documented lessons of the recent past:
http://en.wikipedia.org/wiki/Habitat_(video_game)
The devil is in the details.
Integration allows lower latencies and higher bandwidths at the expense of die size and perhaps packaging cost. The advantages of Intel's dual die quad core include improved yields because of smaller dies and larger cache at the cost of splitting the last level of cache between each pair of cores and increased packaging costs. AMD's quad core shares the entire last level of cache between the cores and has lower latency because of the on die memory controller but the cache is smaller.
Two discrete CPUs probably would outperform a dual core if all other things are equal but that is unlikely to be the case. The former could have twice the total die size and 3 or 4 times as much cache to make up for the lack of integration but die area is expensive never mind the dual socket motherboard.
I have no need for a customized grip on my tooth brush.
It is like preparing to meet a Protector. You take lasers because they are so useful and one other weapon determined by die roll. If your adversary can predict all of your decisions, then decide to do something unpredictable.
Compared with 6 meters and above, HF can actually be difficult to track down both because of propogation and because of the characteristics of the electrically small antennas that would normally be used for mobile hunting. A skilled operator might also take advantage of beam forming combined with skip to mask the transmitter's location. (I've done that sort of thing in transmitter hunts at 2 meters and above but skip gets replaced with reflection and refraction. The beam forming becomes much easier though because of electrically larger antennas. Airplanes and skyscrapers make excellent decoy reflectors.) With the right band selection, sporadic world wide communication can be done with 5 watts or less. QRP (low power) HF contests for range are quite common.
This is not completely true.
Read operations can cause bit failure within pages that are in the same block. It is common enough that reserve ECC capacity should be checked when verifying writes.
I love my vernier calipers. All of the young upstarts can not read them so I never have to go looking for them. For extra safety I store them on my lawn.
I did the same thing with my HP-48 because my slide rules were too precious to risk in the hands of others.
Student: "May I borrow your calculator?"
Me: "Sure. Here."
Student searches in vain for any operational familiarity.
Student: "Ummm, no thanks."
It is not really a bug if programs adhering to the OOXML standard have to duplicate this behavior.
I doubt it. More likely the War on P2P will be initiated with the attendant ongoing surrender of civil liberties.
The sensor is certainly susceptible to physical damage given bright enough illumination. If only there was some way to focus a coherent beam of light from a distance . . .
When was the last time liquor stores or the alcoholic beverage manufacturers had to resort to violence for contract enforcement?
If you already have to break the law to conduct business as a routine matter, why would additional prohibitions on the use of force be significant?