Problem with this is that it is totally impossible to collect ALL traffic, even for the NSA. There has to be some kind of filtering between where they tap into the network and where they store the information they collect. Not to mention that they are not Santa Claus, they don't have 100% coverage of all internet traffic.
With that in mind, tell me why the NSA would be interested in watching Mt Gox? Because that's what you are really saying, that the NSA was specifically targeting Mt Gox and/or BitCoin transactions, which may or may not show up where their probes can see it. I don't think the NSA cares, and was/is not in a position to monitor all BitCoin transactions.
NOTHING protects the data from the short between the monitor and the keyboard... All you can do is make it take more commands and ask "Are you sure?" a lot.
What you are doing is putting more steps between the user and total data loss.
Madoff wasn't running a "regulated" business either, his was a Ponzi scheme too. The difference here is that the SEC ended it, once they found out what it was.
So, let me get this straight. You want the government to order that the CEO of Mt Gox not have access to his assets? Yea, good luck with that.
If he was the one who took all the BitCoin from their depositors, what's to keep him from trading them? Nothing, really. Remember that BitCoin is unregulated by design.
Give it a rest, you lost your money and nobody can prove where it went. Oh the joys of an unregulated currency.
Seriously, who needs 20Tb of data at home? This is like a digital version of "Hoarders" or something. Time to clean house and organize.
First, it's time to TAKE OUT THE TRASH. I'll bet the large majority of this data is stuff you never use, don't know you have or is simply out of date and unnecessary. Toss it.
Second, De-Duplicate what's left as best you can. No need to have multiple copies of the same pictures at different resolutions, or the same video encoded multiple ways in your backups. Keep the best resolution stuff in your backup, forget the rest. Don't backup anything you can re-rip from the original media (i.e. that DVD collection, Oh, don't have the DVD's anymore? Turn yourself into the MPAA...)
Third, Compress what's left.
If you find that 20Tb is what you need to keep, then stop asking Slashdot for advice and go buy yourself a professional tape drive and some brand new tapes and start doing backups like a professional. If this is too expensive, start over at step 1 and really take out the trash this time.
NOTHING protects the data from the short between the monitor and the keyboard... All you can do is make it take more commands and ask "Are you sure?" a lot.
I would concur with your conclusion, just not with your reasons.
Unless you are moving your HDMI cables a lot, I doubt you are going to have issues as you suggest. A 2 Meter HDMI cable for $5 can be replaced 5 times over the $45 prime super duper name brand, and I'm not so sure the name brand is going to actually be usable at 5x the number of connect/disconnect cycles. Go with the cheep one. The tolerances for 6 foot cables are EASY to meet, even with cheep materials. Even my ElCheepo E-Bay cables work and I've never had one fail due to fatigue or work hardening of the wires. Not that I move them much.
Going much over 2 Meters is, as you suggest, an area where you are going to spend money because the tolerances are harder to meet when you get to longer cables. You will need more expensive wire that has tighter tolerances per foot and connectors with the less loss and impedance bumps. Which is why you don't find long HDMI cable cheep. But signals don't get "fuzzy" when going digital. What happens is the error rates go up. High error rates may or may not be visible depending on the bit it is, but on HDMI it's likely just not going to work if the error rate is anything you'd notice. So, If the cable works well enough to actually get authorized and show something, it's going to work.
Remember, the issue is that you MUST meet the same specifications no matter how long the cable is. The longer you make the cable, the harder (and more expensive) it becomes to produce the cable. Short cables can meet the spec with lower quality wire and connectors. There's no need to pay extra for short cables. Use the cheapest one that works, which is likely the shortest one that meets your needs that is called an HDMI cable.
DNS deals with this issue using TTL (time to live) for the records it hands out. The Authoritative DNS server for the domain gives out the TTL it wants for every query it receives. Other non-authoritative DNS servers are supposed to throw away any record they cache once it reaches it TTL Now if you have TTL's measured in days, you lower the load on your DNS server, but any IP changes can take a long time to propagate. The trade off is that lowering the TTL increases the load on the authoritative server. So, there are going to be differences in resolved domains that will resolve themselves over time.
However, that's not what the author is complaining about. He's getting no resolution for his request, meaning that the DNS server he queried was unable to retrieve the record from cache, nor find a DNS record for the domain when making a query upstream. My guess is that Comcast's DNS infrastructure is just overloaded so when trying to obtain information about more obscure domains like this it fails now and then. Such failures get cached for awhile so they hand out no matches to others as well. If enough folks start requesting the domain, it eventually will get cached properly and start to resolve. Of course, another possible option is that the domain got black holed by Comcast's DNS for being involved in a phishing expedition or other bad thing too, but it's hard to know.
Or maybe there's a problem with 021yy.org's authoritative nameservers - maybe only/some/ of them, and whichever algorithm Comcast uses to choose one is picking the bad ones. Or maybe there's a temporary general problem with Comcast's own nameservers - which were your control sites, to make sure those would work? Or maybe Mechanical Turk workers know what you're up to and are trolling you.
No, I think he's proven that Comcast as crappy DNS servers. But I'm not surprised. Configuring and running a caching DNS is slightly more difficult than loading Red Hat and Bind, you actually have to come up with the proper configuration file. Then figure that a single DNS server is likely not enough for all of their customers so they likely have a pool of servers and it gets really hard to manage all that.
I would suspect all ISP's of having DNS issues. Which is why you want to run your own local DNS and/or point to various free DNS services for your network.
Um, no, not really. They might hand out their authoritative DNS records differently based on the perceived location of the DNS server making the query, but I think that they are going to decide the streaming location based upon the IP address making the request. They will have zero real insight into how or what DNS server converted the host name into an IP address.
The technique you describe to break up by geographic location based on DNS queries isn't very useful beyond segregation on some fairly large geographic areas, like a country or perhaps down to a state. Even then, it's not going to be all that useful because many of us are not using our ISP's DNS servers anyway.
It's not that hard to build an HDMI cable if you have the right wire with close to the right twist. Length variances isn't all that important, it's the twisting of the various pairs that matters. Even that isn't critical until you start talking about really long cables that most people don't need anyway.
Further there is a standard that all "HDMI" cables must comply with to use the HDMI lable. If it meets the standard, it will work. So, if it is advertised/labeled as "HDMI" and not manufacturer rejects on E-Bay or somebody is using "HDMI" without a license, it's going to work.
UPS is a good start, but USB drives are notoriously fragile, and I wouldnt trust one as your only backup.
The UPS is totally unnecessary, it just is more convenient than having to rebuild the NAS should the power fail at the wrong time. I have two complete historical copies of my data at all times, even when running a backup.
The USB drives I have are laptop drives internally. They are not indestructible, but tough enough to bounce around my desk drawer without too much of an issue. Plus I have two backup drives, one off site, one local that get rotated regularly.
Not to mention that I run a RAID 5 array with hot spare in the NAS, so I really have 4 copies of everything. All this for my personal data, which rarely changes anyway.
You must be using the mufti-mode fiber cable, switch to the single mode version and you can extend your sonic impact below 15Hz, but only if your Tube amp can handle the increased power required and the magnaplaners are big enough.
Hey now.. I get 25Mbps both ways for $90/month... Well, I get that to any of the speed test servers out there. Now if I actually want to watch Netflix or something, all bets are off.
Oh yea, got to love the $200 HDMI cables they sell... What part of "digital" do people not get? And why does the signal transfer quality matter as long as it is "good enough" to get the logical one or zero to the destination?
Always felt sorry for the folks that fell for the "monster cable" thing, even back when it *might* have mattered in speaker cables, not that I knew anybody who could actually hear the difference between 12 AWG and full on monster cables of 10' length. Now days, with digital being the transfer mode, just buy the cheapest cable that works and you will get EXACTLY the same performance as the gilded gold plated super duper signal quality extra bandwidth premium HDMI cables selling for hundreds of dollars. Give me the $4 HDMI cable please, unless you have a cheaper one that's long enough.
I would agree except that apparently they don't know where it is or they would have found it by now. Something tells me that this aircraft headed below radar coverage quickly, then few for quite some ways before ditching. We have no ELT signals which says they are underwater. We have no debris so the aircraft stayed together until impact with the water (or longer).
Primary paint requires Line Of Sight and if the military radar is ground based this happened in about the worst possible location for coverage. The aircraft would have to be above the horizon to the radar site to be seen by radar. (OK, perhaps even a bit below it, but not by much). Coverage may be great for aircraft at altitude, but they are going to have to be thousands of feet up to be above the horizon for any land based radar where they where.
This is where the term "under the radar" comes from.
There is that, which is why my NAS has two USB backup drives that get connected to dump to offline backup. I have two backup drives so I can keep one in my desk at work and one at home.
But There also are things known as UPS's which both provided uninterrupted power as well as surge protection. I'm good short, of a lighting strike or EMP.
Could it be that when emergency strike the crews panicked and started praying on their knees to their Allah and forgot to call for help ??
No. As my flight instructor told me, fly the plane first and if you have time, talk on the radio. If they where busy with multiple system failures the first task is to get control of the aircraft. If you don't have the aircraft under control, talking on the radio is the absolute WRONG thing to be doing unless there is time. ATC is required to ask you all sorts of useless questions and if you are struggling to control your aircraft the last thing you want or need is another distraction. "Nature of your emergency?" "Number of souls on board?" "What are your intentions?" Now if they can help you by suggesting the nearest airport, clearing the runway, getting the fire trucks rolling or getting search and rescue started by all means, get on the radio, but the first thing you do is FLY THE AIRPLANE.
I'm somewhat familiar with the RAT system and I'm not discounting it.
What I'm saying is that we must have had multiple system failures. ALL power or ALL hydraulic pressure (both of which have multiple redundant and independent systems) or possibly an unfortunate combination of partial system failures. Such catastrophic failures should be vanishingly rare, and usually would be the result of a major structural failure and one would expect the breakup of the aircraft would result. In flight breakup didn't happen or we'd have found this thing by now.
I have two primary theories at this point. First, it's possible there was a windscreen failure or small structural failure near the cockpit that leads to decompression. In the confusion the crew fails or is unable to get their O2 masks in place within the 10 seconds they'd have at 35K feet. If they where flying manually or disconnected the flight director somehow (pushing on the yoke or peddles would do this) the aircraft could fly for quite awhile and end up way off course. As we where almost 2 hours into the flight, it's even possible that only one pilot was in the cockpit. My second theory is that there was an intentional crashing, either by hijacking or suicide. In any case, the aircraft flew for awhile after the incident and impacted the water well away from their expected location generally in one piece.
Slashdot Mirror
"Mistakes were made"?
That much is clear.. At Mt Gox, apparently they didn't all get away with taking/loosing their customers' deposits.
It's the death of the free market, and the government will ruin everything we built!
I think the BitCoin community is doing a pretty good job of ruining the currency on their own without government help.
Problem with this is that it is totally impossible to collect ALL traffic, even for the NSA. There has to be some kind of filtering between where they tap into the network and where they store the information they collect. Not to mention that they are not Santa Claus, they don't have 100% coverage of all internet traffic.
With that in mind, tell me why the NSA would be interested in watching Mt Gox? Because that's what you are really saying, that the NSA was specifically targeting Mt Gox and/or BitCoin transactions, which may or may not show up where their probes can see it. I don't think the NSA cares, and was/is not in a position to monitor all BitCoin transactions.
Which was exactly what I posted..
NOTHING protects the data from the short between the monitor and the keyboard... All you can do is make it take more commands and ask "Are you sure?" a lot.
What you are doing is putting more steps between the user and total data loss.
The short between the monitor and the keyboard can take care of that too...
Madoff wasn't running a "regulated" business either, his was a Ponzi scheme too. The difference here is that the SEC ended it, once they found out what it was.
So, let me get this straight. You want the government to order that the CEO of Mt Gox not have access to his assets? Yea, good luck with that.
If he was the one who took all the BitCoin from their depositors, what's to keep him from trading them? Nothing, really. Remember that BitCoin is unregulated by design.
Give it a rest, you lost your money and nobody can prove where it went. Oh the joys of an unregulated currency.
Seriously, who needs 20Tb of data at home? This is like a digital version of "Hoarders" or something. Time to clean house and organize.
First, it's time to TAKE OUT THE TRASH. I'll bet the large majority of this data is stuff you never use, don't know you have or is simply out of date and unnecessary. Toss it.
Second, De-Duplicate what's left as best you can. No need to have multiple copies of the same pictures at different resolutions, or the same video encoded multiple ways in your backups. Keep the best resolution stuff in your backup, forget the rest. Don't backup anything you can re-rip from the original media (i.e. that DVD collection, Oh, don't have the DVD's anymore? Turn yourself into the MPAA...)
Third, Compress what's left.
If you find that 20Tb is what you need to keep, then stop asking Slashdot for advice and go buy yourself a professional tape drive and some brand new tapes and start doing backups like a professional. If this is too expensive, start over at step 1 and really take out the trash this time.
NOTHING protects the data from the short between the monitor and the keyboard... All you can do is make it take more commands and ask "Are you sure?" a lot.
If you took all the punch tape ever produced, I'm not sure you'd have 20Tb worth of storage... I wonder how many times THAT would go around the earth?
I would concur with your conclusion, just not with your reasons.
Unless you are moving your HDMI cables a lot, I doubt you are going to have issues as you suggest. A 2 Meter HDMI cable for $5 can be replaced 5 times over the $45 prime super duper name brand, and I'm not so sure the name brand is going to actually be usable at 5x the number of connect/disconnect cycles. Go with the cheep one. The tolerances for 6 foot cables are EASY to meet, even with cheep materials. Even my ElCheepo E-Bay cables work and I've never had one fail due to fatigue or work hardening of the wires. Not that I move them much.
Going much over 2 Meters is, as you suggest, an area where you are going to spend money because the tolerances are harder to meet when you get to longer cables. You will need more expensive wire that has tighter tolerances per foot and connectors with the less loss and impedance bumps. Which is why you don't find long HDMI cable cheep. But signals don't get "fuzzy" when going digital. What happens is the error rates go up. High error rates may or may not be visible depending on the bit it is, but on HDMI it's likely just not going to work if the error rate is anything you'd notice. So, If the cable works well enough to actually get authorized and show something, it's going to work.
Remember, the issue is that you MUST meet the same specifications no matter how long the cable is. The longer you make the cable, the harder (and more expensive) it becomes to produce the cable. Short cables can meet the spec with lower quality wire and connectors. There's no need to pay extra for short cables. Use the cheapest one that works, which is likely the shortest one that meets your needs that is called an HDMI cable.
DNS deals with this issue using TTL (time to live) for the records it hands out. The Authoritative DNS server for the domain gives out the TTL it wants for every query it receives. Other non-authoritative DNS servers are supposed to throw away any record they cache once it reaches it TTL Now if you have TTL's measured in days, you lower the load on your DNS server, but any IP changes can take a long time to propagate. The trade off is that lowering the TTL increases the load on the authoritative server. So, there are going to be differences in resolved domains that will resolve themselves over time.
However, that's not what the author is complaining about. He's getting no resolution for his request, meaning that the DNS server he queried was unable to retrieve the record from cache, nor find a DNS record for the domain when making a query upstream. My guess is that Comcast's DNS infrastructure is just overloaded so when trying to obtain information about more obscure domains like this it fails now and then. Such failures get cached for awhile so they hand out no matches to others as well. If enough folks start requesting the domain, it eventually will get cached properly and start to resolve. Of course, another possible option is that the domain got black holed by Comcast's DNS for being involved in a phishing expedition or other bad thing too, but it's hard to know.
Or maybe there's a problem with 021yy.org's authoritative nameservers - maybe only /some/ of them, and whichever algorithm Comcast uses to choose one is picking the bad ones. Or maybe there's a temporary general problem with Comcast's own nameservers - which were your control sites, to make sure those would work? Or maybe Mechanical Turk workers know what you're up to and are trolling you.
No, I think he's proven that Comcast as crappy DNS servers. But I'm not surprised. Configuring and running a caching DNS is slightly more difficult than loading Red Hat and Bind, you actually have to come up with the proper configuration file. Then figure that a single DNS server is likely not enough for all of their customers so they likely have a pool of servers and it gets really hard to manage all that.
I would suspect all ISP's of having DNS issues. Which is why you want to run your own local DNS and/or point to various free DNS services for your network.
Customer outcry? Lost market share?
Ok... Just a thought..
Um, no, not really. They might hand out their authoritative DNS records differently based on the perceived location of the DNS server making the query, but I think that they are going to decide the streaming location based upon the IP address making the request. They will have zero real insight into how or what DNS server converted the host name into an IP address.
The technique you describe to break up by geographic location based on DNS queries isn't very useful beyond segregation on some fairly large geographic areas, like a country or perhaps down to a state. Even then, it's not going to be all that useful because many of us are not using our ISP's DNS servers anyway.
It's not that hard to build an HDMI cable if you have the right wire with close to the right twist. Length variances isn't all that important, it's the twisting of the various pairs that matters. Even that isn't critical until you start talking about really long cables that most people don't need anyway.
Further there is a standard that all "HDMI" cables must comply with to use the HDMI lable. If it meets the standard, it will work. So, if it is advertised/labeled as "HDMI" and not manufacturer rejects on E-Bay or somebody is using "HDMI" without a license, it's going to work.
UPS is a good start, but USB drives are notoriously fragile, and I wouldnt trust one as your only backup.
The UPS is totally unnecessary, it just is more convenient than having to rebuild the NAS should the power fail at the wrong time. I have two complete historical copies of my data at all times, even when running a backup.
The USB drives I have are laptop drives internally. They are not indestructible, but tough enough to bounce around my desk drawer without too much of an issue. Plus I have two backup drives, one off site, one local that get rotated regularly.
Not to mention that I run a RAID 5 array with hot spare in the NAS, so I really have 4 copies of everything. All this for my personal data, which rarely changes anyway.
I'm covered better than most IT departments.
You must be using the mufti-mode fiber cable, switch to the single mode version and you can extend your sonic impact below 15Hz, but only if your Tube amp can handle the increased power required and the magnaplaners are big enough.
Hey now.. I get 25Mbps both ways for $90/month... Well, I get that to any of the speed test servers out there. Now if I actually want to watch Netflix or something, all bets are off.
Oh yea, got to love the $200 HDMI cables they sell... What part of "digital" do people not get? And why does the signal transfer quality matter as long as it is "good enough" to get the logical one or zero to the destination?
Always felt sorry for the folks that fell for the "monster cable" thing, even back when it *might* have mattered in speaker cables, not that I knew anybody who could actually hear the difference between 12 AWG and full on monster cables of 10' length. Now days, with digital being the transfer mode, just buy the cheapest cable that works and you will get EXACTLY the same performance as the gilded gold plated super duper signal quality extra bandwidth premium HDMI cables selling for hundreds of dollars. Give me the $4 HDMI cable please, unless you have a cheaper one that's long enough.
We can get Netflix and Verizon together using this I'll be able to actually watch something now and then...
I would agree except that apparently they don't know where it is or they would have found it by now. Something tells me that this aircraft headed below radar coverage quickly, then few for quite some ways before ditching. We have no ELT signals which says they are underwater. We have no debris so the aircraft stayed together until impact with the water (or longer).
Primary paint requires Line Of Sight and if the military radar is ground based this happened in about the worst possible location for coverage. The aircraft would have to be above the horizon to the radar site to be seen by radar. (OK, perhaps even a bit below it, but not by much). Coverage may be great for aircraft at altitude, but they are going to have to be thousands of feet up to be above the horizon for any land based radar where they where.
This is where the term "under the radar" comes from.
There is that, which is why my NAS has two USB backup drives that get connected to dump to offline backup. I have two backup drives so I can keep one in my desk at work and one at home.
But There also are things known as UPS's which both provided uninterrupted power as well as surge protection. I'm good short, of a lighting strike or EMP.
Could it be that when emergency strike the crews panicked and started praying on their knees to their Allah and forgot to call for help ??
No. As my flight instructor told me, fly the plane first and if you have time, talk on the radio. If they where busy with multiple system failures the first task is to get control of the aircraft. If you don't have the aircraft under control, talking on the radio is the absolute WRONG thing to be doing unless there is time. ATC is required to ask you all sorts of useless questions and if you are struggling to control your aircraft the last thing you want or need is another distraction. "Nature of your emergency?" "Number of souls on board?" "What are your intentions?" Now if they can help you by suggesting the nearest airport, clearing the runway, getting the fire trucks rolling or getting search and rescue started by all means, get on the radio, but the first thing you do is FLY THE AIRPLANE.
I'm somewhat familiar with the RAT system and I'm not discounting it.
What I'm saying is that we must have had multiple system failures. ALL power or ALL hydraulic pressure (both of which have multiple redundant and independent systems) or possibly an unfortunate combination of partial system failures. Such catastrophic failures should be vanishingly rare, and usually would be the result of a major structural failure and one would expect the breakup of the aircraft would result. In flight breakup didn't happen or we'd have found this thing by now.
I have two primary theories at this point. First, it's possible there was a windscreen failure or small structural failure near the cockpit that leads to decompression. In the confusion the crew fails or is unable to get their O2 masks in place within the 10 seconds they'd have at 35K feet. If they where flying manually or disconnected the flight director somehow (pushing on the yoke or peddles would do this) the aircraft could fly for quite awhile and end up way off course. As we where almost 2 hours into the flight, it's even possible that only one pilot was in the cockpit. My second theory is that there was an intentional crashing, either by hijacking or suicide. In any case, the aircraft flew for awhile after the incident and impacted the water well away from their expected location generally in one piece.