Thank you.
I followed the instructions and removed it successfully.
In brief, you Reset an item in about:config, delete a registry key and a folder under...\Windows\Microsoft.Net\..
Thank you for this pointer to a superb analysis. My interest comes from having ordered a Lenovo W500 with an 128BG SSD a few days ago. This 31 page review is smart, extensive, pertinent and tells a compelling story of SSD controller design issues. The amount of testing that went into it is more than impressive.
SSD random read/write performance issues requires an altogether different way of thinking about writes. Whereas, say, a rewrite of a 4K document can be done back into the same location of a hard drive, it cannot with an SSD. The write must be to an unused area (that has previously been erased). This is complicated by the fact that writes are done in units of 4K pages, while erases are done in units of 512K blocks (128 pages). After a while, and even if the drive is only partially full, every block has accumulated many "deleted" pages that cannot be written to until an erase operation. An erase requires that the 512K block be copied to a cache, the block erased (all bits reset), and the cache copied back into the block. If the controller fails to manage this well then random R/W operation can produce "stutters:" 500-1000ms delays where the system freezes.
The notion of defragmenting a drive does not apply to an SSD. First there is no mechanical delay in SSD, so read performance cannot be improved by making files continuous. Further, the OS has no knowledge as to the actual page location where a piece of data has been written. Only the controller has that information.
But there is the possibility of an OS "Trim" operation where it can instruct the controller to perform the multi-step reset operation outlined above. This could be done when the OS or user decides the SSD needs it and is not busy. The effect is to make deleted blocks available for writes before they're needed. IOW, instead of having to force numerous refreshes of 512K blocks in order to obtain space for a series of 4K blocks, do it soon after the delete --- when there's slack time -- rather than before the write when there's not. But the OS has to be involved. He says Windows 7 promises to support Trim in conjunction with a to-be-established controller standard.
Before proceeding to the main P2P logic, C contacts a list of known web sites to acquire the current date and time. C incorporates a set of embedded domain names, from which it selects a subset of multiple entries from this list. ...In response, the site returns a standard URL header that incorporates a date and time stamp. C then parses this information to set its internal system time. The following web sites are consulted by C's Internet date check:
From TFA ...If none of the domains are alive and ready to serve a digitally signed payload, C will sleep for 24 hours, and then will generate a new list of 50,000 domains.... The name of each generated domain is 4 to 10 characters, to which a randomly selected TLD is appended from the following list of 116 suffix (mapping to 110 TLDs):
So you have a random string of 4 to 10 characters randomly prependeded to one of these randomly selected suffixes. Clearly, these cannot be registered ahead of time.
In the meanwhile, and among other defensive activities, a list of IP addresses is filtered against. Here is a small portion.
...
63.65.93.127 MCAFEE MORTGAGE AMERITECH.NET TEXAS UNITED STATES
63.65.94.0 MCAFEE MORTGAGE AMERITECH.NET TEXAS UNITED STATES
63.65.94.15 MCAFEE MORTGAGE AMERITECH.NET TEXAS UNITED STATES
63.65.94.96 MCAFEE MORTGAGE AMERITECH.NET TEXAS UNITED STATES
63.65.94.111 MCAFEE MORTGAGE AMERITECH.NET TEXAS UNITED STATES
63.65.94.208 MCAFEE MORTGAGE/ BEA - TEXAS UNITED STATES
63.65.94.223 MCAFEE MORTGAGE/ BEA - TEXAS UNITED STATES
63.65.232.144 MCAFEE MORTAGE/SAN A - TEXAS UNITED STATES
63.65.232.151 MCAFEE MORTAGE/SAN A - TEXAS UNITED STATES
63.65.232.160 MCAFEE MORTAGE/ODESS - TEXAS UNITED STATES
63.65.232.175 MCAFEE MORTAGE/ODESS - TEXAS UNITED STATES
63.69.245.0 MICROSOFT CORP MSN.NET WASHINGTON UNITED STATES
63.69.245.255 MICROSOFT CORP MSN.NET WASHINGTON UNITED STATES
63.80.93.0 MICROSOFT SBCGLOBAL.NET CALIFORNIA UNITED STATES
63.80.93.127 MICROSOFT SBCGLOBAL.NET CALIFORNIA UNITED STATES
63.90.149.128 MCAFEE MORTGAGE AMERITECH.NET TEXAS UNITED STATES ...
There is also a long list of sites where it uses to check (and reset) system time. Additionally, it removes registry entries related to anti-malware and adds lots of obfuscating entries of its own.
Formidable.
from the uspto.gov FAQ "Most patent applications filed on or after November 29, 2000, will be published 18 months after the filing date of the application.... Otherwise, all patent applications are maintained in the strictest confidence until the patent is issued or the application is published." This means the application is not available to anyone during that period (unless the application is issued earlier and thus becomes public).
Does your full name match -- same middle name and same spelling? If not, spell it out fully. Otherwise add home town, age, University attended and years... There's bound to be a few salient facts of your bio that blatantly distinguish you from him. Is his SSN shown in his online record? Make sure HR knows yours is not his.
The 12 TB figure in TFA is derived from the error rate: "SATA drives are commonly specified with an unrecoverable read error rate (URE) of 10^14." If the URE is improved - say, by devoting more bits to error correction - then the numbers get better. I expect the drive producers know this and will acct accordingly.
Average Customer Review:
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1.3 out of 5 stars See all reviews (502 customer reviews) Amazon.com Sales Rank: #1 in Video Games (See Bestsellers in Video Games)
A lot of people are not liking it -- a lot more are buying it. Quite an amazing dichotomy.
Yes indeed that would be helpful. I watch Netflix videos every night with the Roku box (like it a lot). There's no way I know of to measure my total Netflix usage. It's probably much greater than my Internet use. Comcast is my ISP and this is from the FAQ.
How does Comcast help its customers track their usage so they can avoid exceeding the limit?
There are many online tools customers can download and use to measure their consumption. Customers can find such tools by simply doing a Web search - for example, a search for "bandwidth meter" will provide some options. Customers using multiple PCs should just be aware that they will need to measure and combine their total monthly usage in order to identify the data usage for their entire account.
Does not help!
In order to enforce their 250GB limit they first have to measure it. It would seem very simple for Comcast to display the current measurement on my account page.
I can't think of any reason they would want to hide it -- except to hide the fact that most customers are using only a few percent of what they are paying for.
Water has the highest heat capacity of any common liquid. It takes more energy to raise the temp of a given amount of water one degree than for any other substance. High heat capacity is one reason it is so efficient for power generation and cooling.
For example, one BTU of energy raises one pound of water one degree F. In metric units, the specific heat of water is about 4185 J/kg/K (15C). Whereas the specific heat of Flourinert is about 1049 J/kg/K, or 24% of water. OTOH, Flourinert is about twice as dense as water (1.85). This means that the flow rate would have to be 2.25 (1/(1.85*.24)) times that for water to remove the same amount of heat, given the same temperature drop. I would have guessed that Flourinert would be a better heat remover at such a high price. It's utility comes from its inert nature in an electronics environment.
Deionized water is also a good electrical insulator as well as the best heat transfer agent. But with the wide variety of materials in a pc, some would dissolve and cause water to be conductive. Shorts.
Oops, hit Submit too soon. Last sentence should be: And this value isn't much lower than for
fossil power efficiency, also in the low 40s. Nuclear is the safest and lowest cost method for producing large amounts of power. All the big problems are political, not technical.
It's the overall
thermodynamic efficiency
that rules. This is a simple function of max temp and min temp: max possible efficiency = 1 - max/min (absolute temps), a physical limit which is never fully reached. The value for a
good nuclear plant design
is 41%. This means that for every gigawatt generated (100-41)/41 = 1.4 gigawatts of heat must be dumped to the environment. And this value isn't much lower that
follil power. efficiency Nuclear is the way to do it.
A swimmer achieves thrust by "pushing against" the water in a way that changes its momentum. Thrust (force) equals delta momentum and momentum equals mass times velocity. To increase the thrust, grab more water (mass) in a given increment of time, or move it faster or both. One way to increase the mass is to use fins: not allowed. Another way is to increase the density (mass/volume) of water: use heavy water.
Definitely expensive, probably illegal, and would help all competitors equally. But if a particular host country wanted to see a lot of records set, well that country could dope the pool with lots of D2O.
I'm less of an expert, but I think you may be correct. The attacker "asks for aaaae3fcg.bankofamerica.com and also sends 100,000 responses to that query to that same recursive DNS server" (copying an AC's example, above). The attacker does not see the DNS server's UPD packet and consequently hopes a match happens with one of the 100,000 responses. Assume the probability of success is p. Under your suggestion where the server must send a second query the probability of the attacker succeeding twice in a row becomes p^2.
But, if p is close to 1, say 0.9, then p squared is 81%, not too bad.
Being a non-expert about protocol details, a thought is that if the attacker's response is weird (technical term) then the DNS server query should be repeated more than a few times. What is "weird" here? Expiration time, IP physical location change,... But his might place too much demand on the server to be practical.
Maybe this is a better idea. DNS servers currently ignore responses with the wrong port number: they toss away all failures until they get a match. Furthermore, they also ignore all invalid responses that arrive AFTER a match. Example -- of the attacker's 100,000 responses 53,999 arrive before the hit and 46,000 after. So I propose that these failures be counted, both before a match and after a match. If either count hits a limit then respond accordingly. In particular, do not update the cache.
Identification: Tufts University's system is entirely dependent upon a computer's [MAC] address. . . . When a computer is first connected to the Tufts' network . . . the user must "register" the computer's MAC address(es) of the machine presented along with the username.
I had ongoing problems with routers needing rebooting and happened to mention it to an EDN editor. He said it's a common heat problem: remove the cover and install heatsinks on the hotest chips. I checked the chips with an IR thermometer, and two of them were over 140F with covers off. I used heatsink epoxy (silver filled) to attach small, finned heatsinks, left the cover off and haven't had a problem since -- approx 18 mos ago.
I have Roku and love it. The day it arrived (a Saturday) I watched it from about noon to 2AM. Went swimmingly. Since then I've used it 1 to 4 hours per evening. No halts, stutters or other problems at all. My ISP is the much lauded Comcast.
Roku FAQ: "For fast connections (3 Mbps or more), picture quality is comparable to DVD quality." I agree with the DVD quality assertion. Three Mbps is about 1.4 GB/hour. With Comcast's threatened 250BG/month cap this yields about 180 hours, or 100 flicks, per month. More than adequate. But I hope Comcast doesn't start throttling this traffic.
Autostitch "is the world's first fully automatic 2D image stitcher." The order in which you take the photos in not important, just that you cover everything and that there is plenty of overlap. You don't have to worry about keeping the camera horizontal -- it will rotate individual shots as needed. And
you can ZOOM in on certain shots for more detail. I've used it to merge 154 shots into one panorama. Free.
Re:So professional not even heard of Ohm's law
on
DDR3 RAM Explained
·
· Score: 1
Did you mean 31%?
100% - 17% = 83% = 0.83// assume 17% supply voltage reduction and const "resistance," which might not be the case
0.83^2 = 0.6889 ~ 69%// power goes as voltage squared
100% - 69% = 31%// power reduction
Slashdot Mirror
Thank you. ...\Windows\Microsoft.Net\..
I followed the instructions and removed it successfully.
In brief, you Reset an item in about:config, delete a registry key and a folder under
Thank you for this pointer to a superb analysis. My interest comes from having ordered a Lenovo W500 with an 128BG SSD a few days ago. This 31 page review is smart, extensive, pertinent and tells a compelling story of SSD controller design issues. The amount of testing that went into it is more than impressive.
SSD random read/write performance issues requires an altogether different way of thinking about writes. Whereas, say, a rewrite of a 4K document can be done back into the same location of a hard drive, it cannot with an SSD. The write must be to an unused area (that has previously been erased). This is complicated by the fact that writes are done in units of 4K pages, while erases are done in units of 512K blocks (128 pages). After a while, and even if the drive is only partially full, every block has accumulated many "deleted" pages that cannot be written to until an erase operation. An erase requires that the 512K block be copied to a cache, the block erased (all bits reset), and the cache copied back into the block. If the controller fails to manage this well then random R/W operation can produce "stutters:" 500-1000ms delays where the system freezes.
The notion of defragmenting a drive does not apply to an SSD. First there is no mechanical delay in SSD, so read performance cannot be improved by making files continuous. Further, the OS has no knowledge as to the actual page location where a piece of data has been written. Only the controller has that information.
But there is the possibility of an OS "Trim" operation where it can instruct the controller to perform the multi-step reset operation outlined above. This could be done when the OS or user decides the SSD needs it and is not busy. The effect is to make deleted blocks available for writes before they're needed. IOW, instead of having to force numerous refreshes of 512K blocks in order to obtain space for a series of 4K blocks, do it soon after the delete --- when there's slack time -- rather than before the write when there's not. But the OS has to be involved. He says Windows 7 promises to support Trim in conjunction with a to-be-established controller standard.
There's no Artist in RIAA
From TFA:
...In response, the site returns a standard URL header that incorporates a date and time stamp. C then parses this information to set its internal system time. The following web sites are consulted by C's Internet date check:
Before proceeding to the main P2P logic, C contacts a list of known web sites to acquire the current date and time. C incorporates a set of embedded domain names, from which it selects a subset of multiple entries from this list.
4shared.com, adobe.com, allegro.pl, ameblo.jp, answers.com, aweber.com, badongo.com, baidu.com, bbc.co.uk, blogfa.com, clicksor.com,comcast.net, cricinfo.com, disney.go.com, ebay.co.uk, facebook.com, fastclick.com, friendster.com, imdb.com, megaporn.com, megaupload.com, miniclip.com, mininova.org, ning.com, photobucket.com, rapidshare.com, reference.com, seznam.cz, soso.com, studiverzeichnis.com, tianya.cn, torrentz.com, tribalfusion.com, tube8.com, tuenti.com, typepad.com, ucoz.ru, veoh.com, vkontakte.ru, wikimedia.org, wordpress.com, xnxx.com, yahoo.com, youtube.com
The HTTP date check activity remains a relatively steady six to nine hosts contacted per hour.
From TFA
...
...
...If none of the domains are alive and ready to serve a digitally signed payload, C will sleep for 24 hours, and then will generate a new list of 50,000 domains.... The name of each generated domain is 4 to 10 characters, to which a randomly selected TLD is appended from the following list of 116 suffix (mapping to 110 TLDs):
ac, ae, ag, am, as, at, be, bo, bz, ca, cd, ch, cl, cn, co.cr, co.id, co.il, co.ke, co.kr, co.nz, co.ug, co.uk, co.vi, co.za, com.ag, com.ai, com.ar, com.bo, com.br, com.bs, com.co, com.do, com.fj, com.gh, com.gl, com.gt, com.hn, com.jm, com.ki, com.lc, com.mt, com.mx, com.ng, com.ni, com.pa, com.pe, com.pr, com.pt, com.py, com.sv, com.tr, com.tt, com.tw, com.ua, com.uy, com.ve, cx, cz, dj, dk, dm, ec, es, fm, fr, gd, gr, gs, gy, hk, hn, ht, hu, ie, im, in, ir, is, kn, kz, la, lc, li, lu, lv, ly, md, me, mn, ms, mu, mw, my, nf, nl, no, pe, pk, pl, ps, ro, ru, sc, sg, sh, sk, su, tc, tj, tl, tn, to, tw, us, vc, vn
So you have a random string of 4 to 10 characters randomly prependeded to one of these randomly selected suffixes. Clearly, these cannot be registered ahead of time.
In the meanwhile, and among other defensive activities, a list of IP addresses is filtered against. Here is a small portion.
63.65.93.127 MCAFEE MORTGAGE AMERITECH.NET TEXAS UNITED STATES
63.65.94.0 MCAFEE MORTGAGE AMERITECH.NET TEXAS UNITED STATES
63.65.94.15 MCAFEE MORTGAGE AMERITECH.NET TEXAS UNITED STATES
63.65.94.96 MCAFEE MORTGAGE AMERITECH.NET TEXAS UNITED STATES
63.65.94.111 MCAFEE MORTGAGE AMERITECH.NET TEXAS UNITED STATES
63.65.94.208 MCAFEE MORTGAGE/ BEA - TEXAS UNITED STATES
63.65.94.223 MCAFEE MORTGAGE/ BEA - TEXAS UNITED STATES
63.65.232.144 MCAFEE MORTAGE/SAN A - TEXAS UNITED STATES
63.65.232.151 MCAFEE MORTAGE/SAN A - TEXAS UNITED STATES
63.65.232.160 MCAFEE MORTAGE/ODESS - TEXAS UNITED STATES
63.65.232.175 MCAFEE MORTAGE/ODESS - TEXAS UNITED STATES
63.69.245.0 MICROSOFT CORP MSN.NET WASHINGTON UNITED STATES
63.69.245.255 MICROSOFT CORP MSN.NET WASHINGTON UNITED STATES
63.80.93.0 MICROSOFT SBCGLOBAL.NET CALIFORNIA UNITED STATES
63.80.93.127 MICROSOFT SBCGLOBAL.NET CALIFORNIA UNITED STATES
63.90.149.128 MCAFEE MORTGAGE AMERITECH.NET TEXAS UNITED STATES
There is also a long list of sites where it uses to check (and reset) system time. Additionally, it removes registry entries related to anti-malware and adds lots of obfuscating entries of its own.
Formidable.
from the uspto.gov FAQ
"Most patent applications filed on or after November 29, 2000, will be published 18 months after the filing date of the application.... Otherwise, all patent applications are maintained in the strictest confidence until the patent is issued or the application is published."
This means the application is not available to anyone during that period (unless the application is issued earlier and thus becomes public).
Does your full name match -- same middle name and same spelling? If not, spell it out fully. Otherwise add home town, age, University attended and years... There's bound to be a few salient facts of your bio that blatantly distinguish you from him. Is his SSN shown in his online record? Make sure HR knows yours is not his.
How does Apple handle Blu-Ray DRM requirements? (Not rhetorical, curious to know given the licensing issues.)
"There is no analog -> digital conversion involved." So, stored on the tape is what? I guess you need analog memory in the PC to edit it as well.
The 12 TB figure in TFA is derived from the error rate: "SATA drives are commonly specified with an unrecoverable read error rate (URE) of 10^14." If the URE is improved - say, by devoting more bits to error correction - then the numbers get better. I expect the drive producers know this and will acct accordingly.
Average Customer Review:
502 Reviews
5 star: 3% (18)
4 star: 2% (12)
3 star: 1% (6)
2 star: 2% (15)
1 star: 89% (451)
1.3 out of 5 stars See all reviews (502 customer reviews)
Amazon.com Sales Rank: #1 in Video Games (See Bestsellers in Video Games)
A lot of people are not liking it -- a lot more are buying it. Quite an amazing dichotomy.
I live in N. California and buy a lot from Amazon.com. Often it ships from a location in Nevada, not far from the CA state line. No sales tax.
I couldn't find Print Preview, and the absence of mouse gestures (FireGestures), AdBlock Plus, and the download add-ons make it a no-show for now.
Fast and clean though. Will wait.
Yes indeed that would be helpful. I watch Netflix videos every night with the Roku box (like it a lot). There's no way I know of to measure my total Netflix usage. It's probably much greater than my Internet use. Comcast is my ISP and this is from the FAQ.
How does Comcast help its customers track their usage so they can avoid exceeding the limit?
There are many online tools customers can download and use to measure their consumption. Customers can find such tools by simply doing a Web search - for example, a search for "bandwidth meter" will provide some options. Customers using multiple PCs should just be aware that they will need to measure and combine their total monthly usage in order to identify the data usage for their entire account.
Does not help!
In order to enforce their 250GB limit they first have to measure it. It would seem very simple for Comcast to display the current measurement on my account page.
I can't think of any reason they would want to hide it -- except to hide the fact that most customers are using only a few percent of what they are paying for.
Water has the highest heat capacity of any common liquid. It takes more energy to raise the temp of a given amount of water one degree than for any other substance. High heat capacity is one reason it is so efficient for power generation and cooling.
For example, one BTU of energy raises one pound of water one degree F. In metric units, the specific heat of water is about 4185 J/kg/K (15C). Whereas the specific heat of Flourinert is about 1049 J/kg/K, or 24% of water. OTOH, Flourinert is about twice as dense as water (1.85). This means that the flow rate would have to be 2.25 (1/(1.85*.24)) times that for water to remove the same amount of heat, given the same temperature drop. I would have guessed that Flourinert would be a better heat remover at such a high price. It's utility comes from its inert nature in an electronics environment.
Deionized water is also a good electrical insulator as well as the best heat transfer agent. But with the wide variety of materials in a pc, some would dissolve and cause water to be conductive. Shorts.
Oops, hit Submit too soon. Last sentence should be:
And this value isn't much lower than for fossil power efficiency, also in the low 40s. Nuclear is the safest and lowest cost method for producing large amounts of power. All the big problems are political, not technical.
It's the overall thermodynamic efficiency that rules. This is a simple function of max temp and min temp: max possible efficiency = 1 - max/min (absolute temps), a physical limit which is never fully reached.
The value for a good nuclear plant design is 41%. This means that for every gigawatt generated (100-41)/41 = 1.4 gigawatts of heat must be dumped to the environment. And this value isn't much lower that follil power. efficiency Nuclear is the way to do it.
A swimmer achieves thrust by "pushing against" the water in a way that changes its momentum. Thrust (force) equals delta momentum and momentum equals mass times velocity. To increase the thrust, grab more water (mass) in a given increment of time, or move it faster or both. One way to increase the mass is to use fins: not allowed. Another way is to increase the density (mass/volume) of water: use heavy water.
Definitely expensive, probably illegal, and would help all competitors equally. But if a particular host country wanted to see a lot of records set, well that country could dope the pool with lots of D2O.
Not saying anything. Just a thought.
I'm less of an expert, but I think you may be correct. The attacker "asks for aaaae3fcg.bankofamerica.com and also sends 100,000 responses to that query to that same recursive DNS server" (copying an AC's example, above). The attacker does not see the DNS server's UPD packet and consequently hopes a match happens with one of the 100,000 responses. Assume the probability of success is p. Under your suggestion where the server must send a second query the probability of the attacker succeeding twice in a row becomes p^2.
... But his might place too much demand on the server to be practical.
But, if p is close to 1, say 0.9, then p squared is 81%, not too bad.
Being a non-expert about protocol details, a thought is that if the attacker's response is weird (technical term) then the DNS server query should be repeated more than a few times. What is "weird" here? Expiration time, IP physical location change,
Maybe this is a better idea. DNS servers currently ignore responses with the wrong port number: they toss away all failures until they get a match. Furthermore, they also ignore all invalid responses that arrive AFTER a match. Example -- of the attacker's 100,000 responses 53,999 arrive before the hit and 46,000 after. So I propose that these failures be counted, both before a match and after a match. If either count hits a limit then respond accordingly. In particular, do not update the cache.
It seems that spoofing would not work here.
I had ongoing problems with routers needing rebooting and happened to mention it to an EDN editor. He said it's a common heat problem: remove the cover and install heatsinks on the hotest chips. I checked the chips with an IR thermometer, and two of them were over 140F with covers off. I used heatsink epoxy (silver filled) to attach small, finned heatsinks, left the cover off and haven't had a problem since -- approx 18 mos ago.
I have Roku and love it. The day it arrived (a Saturday) I watched it from about noon to 2AM. Went swimmingly. Since then I've used it 1 to 4 hours per evening. No halts, stutters or other problems at all. My ISP is the much lauded Comcast.
Roku FAQ: "For fast connections (3 Mbps or more), picture quality is comparable to DVD quality." I agree with the DVD quality assertion. Three Mbps is about 1.4 GB/hour. With Comcast's threatened 250BG/month cap this yields about 180 hours, or 100 flicks, per month. More than adequate. But I hope Comcast doesn't start throttling this traffic.
I wish Firefox had a macro feature. I'd use it to do Tools/Options/Content/Colors [uncheck] Allow pages to chose their own colors.
Autostitch "is the world's first fully automatic 2D image stitcher." The order in which you take the photos in not important, just that you cover everything and that there is plenty of overlap. You don't have to worry about keeping the camera horizontal -- it will rotate individual shots as needed. And you can ZOOM in on certain shots for more detail. I've used it to merge 154 shots into one panorama. Free.
Did you mean 31%?
// assume 17% supply voltage reduction and const "resistance," which might not be the case
// power goes as voltage squared
// power reduction
100% - 17% = 83% = 0.83
0.83^2 = 0.6889 ~ 69%
100% - 69% = 31%