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Comment fail2ban (Score 1) 3

I have been running Linux for my router for over 2 decades now. The only port exposed to the Internet is SSH. And without the SSL keys you cannot get in. It runs fail2ban so that if you fail 3 times it drops packets from your IP. I also have several other options in it that will drop packets if they do not match specific criteria. And since I made them I can change them as needed.

Comment Closet Full of Hardware (Score 1) 65

I gladly, and knowingly pay the $10 a month rental. I have a closet full of old hardware (anyone want a V.Everything modem?). And if there is a problem they can get into it remotely. A new cable modem with 16x4 and GigE will run about $180 for a new modem with router. That means I will spend about $60 more on my 2 year contract. And when I get done I will not have yet another piece of hardware to put in the closet.

Comment Re:Don't do that. (Score 5, Interesting) 194

From one of many Hulu's own case studies, 13 million views, 106K total votes
http://www.hulu.com/advertising/case-studies/oscars

So if you go strictly by the view rate, 13 million. That extra cost for a $1,000,000 advertisement would be a whole 7 cents. Since most adds are well under $1M it would be even less.

Comment Re:Emissions (Score 1) 196

That big dark cloud, at least the dark part, is called soot. It is simply carbon. As emissions go the fact you can see it is by far the least of your worries. Worse are things like sulfates, which you can not see. And is why all diesel sold on the US for vehicles is low sulfur.

As for the emissions of a gasoline engine. Those emissions are much higher, and much more deadly. And comes mainly not from the gasoline, but its additives. This is why we regulate gasoline engines so much.

Privacy

Submission + - Leaky cellphone nets can give attackers your location (networkworld.com)

alphadogg writes: GSM cellular networks leak enough location data to give third-parties secret access to cellphone users' whereabouts, according to new University of Minnesota research. "We have shown that there is enough information leaking from the lower layers of the GSM communication stack to enable an attacker to perform location tests on a victim's device. We have shown that those tests can be performed silently without a user being aware by aborting PSTN calls before they complete," write the authors, from the College of Science and Engineering, in a paper titled "Location Leaks on the GSM Air Interface." http://z.umn.edu/fookuneresearch The researchers are working with carriers and equipment makers, including AT&T and Nokia, to address the security issues.

Comment Bus speeds (Score 1) 130

What the author fails to realize is that the limiting factor on a SAN is most often the host itself, not the disk. A single disk my not have the IO, but an array most certainly does (depends on array). A standard, 33 MHz PCI bus can only transfer 133Mb/s (theoretical max). Even faster buses still do not match the I/O speed or throughput of a SAN.

The limiting factor on a PC is that southbridge chip, not the storage. The vast majority of the systems typically connected simply can not push the I/O fast enough out of its ports. It is not waiting on disk, it is waiting on the IO of its bridge chip and bus. Of course putting it on a ram disk is faster. RAM sits off the north bridge and therefore has better throughput to the CPU.

This is more a limit of bridge chips and PC architecture then the speed of a SAN.

 

Comment What can I demand (Score 1) 271

Lets see how far we can take this.

I demand, any PowerPoint slide I created that was later re-used, a cut of the quota profit sales received.
I demand, any spreadsheet I have made as a work for hire, a royalty anytime it is updated.

Does anyone here build houses? Make cars? Build anything that was sold to someone?

Comment Why not post about the damage oil trucks make? (Score 5, Insightful) 281

Living in Texas, with oil and gas, wells I can personally attest to damage done by service trucks to our road. This is due to to constant need to move the product to market, or service the water that comes from the wells (yes gas and oil wells produce water too).

I have seen these trucks that carry the crude oil from gas wells get into accidents. I have seen bridges totally destroyed from burning oil under them (concrete breaks down under the extreme heat).

Do we write about the millions of dollars in damage our oil trucks create yearly? Or do we single out a few accidents in trucking, carrying oversize loads instead.

Do we even hear about the oversize building moments that tie up traffic? Do we hear about the daily fatal accidents from truck accidents? Or do we single out a few trucks that just happened to be carrying wind turbine parts?

PC Games (Games)

StarCraft II Beta Signups Open 123

motang writes "StarCraftWire reports that Blizzard has started taking beta sign-ups for StarCraft II. Quoting: 'Interested parties must simply visit their Battle.net profile page, choose to opt-in for the beta, and re-submit their current system specs by way of a small downloadable piece of software.' Blizzard's Chris Sigaty said in an interview, 'As with previous betas for our real-time strategy games, the StarCraft II beta test will be multiplayer only, and players will have access to all three races — terrans, protoss, and zerg — and all of their units. We'll include a selection of multiplayer maps, but they won't necessarily include all of the maps that will be in the final version of the game. We're making some great progress on the single-player campaign, but we don't plan to do a public beta since we want to keep the story under wraps until the game's out.'"

Comment Re:please... (Score 1) 369

Hard drives do not write to the *exact* same position all the time. Additionally when they do so they effect more then the precise amount of magnetic medium below the write heads. It is technically feasible (with modification of the firmware on the drive or physically removing platters) to half step the read heads and read the spaces next to where data was written.

Devices that do this generally take one drive and attach another that can hold the recovered data. A simple search in your favorite search engine with "forensic data recovery" will revel companies that can do this and hardware available for the task.

Comment Re:I'm still confused. (Score 1) 859

A CFL contains about 5 mg of mercury, about enough to cover the point of a ball point pen. Let's say it breaks in a room that has a volume of about 25 m^3 (which is about a medium sized bedroom). The entire 5 mg of mercury vaporizes immediately (an very unlikely occurrence), resulting in an airborne mercury concentration in this room of 0.2 mg/m^3. This concentration will decrease with time, as air in the room leaves and is replaced by air from outside or from a different room. As a result, concentrations of mercury in the room will likely approach zero after about an hour or so.

Even with these relatively conservative assumptions, this level and duration of mercury exposure is not likely to be dangerous, as it is lower than the US Occupational Safety and Health Administration (OSHA) standard of 0.05 mg/m3 of metallic mercury vapor averaged over *eight* hours. The EPA recommends that (1) you immediately open windows to reduce mercury concentrations inside your home; (2) you do not touch the spilled mercury; (3) you clean up the broken CFL glass carefully and immediately (but not with your hands or a vacuum cleaner), and (4) you wipe the affected area with a paper towel to remove all glass fragments. Please note it is the glass they are worried more about then the mercury.

The issue with mercury in the CFL bulbs is not one of it breaking in your house. It is what happens when we put millions into landfills.

Comment Re:"commercial UNIX" (Score 1) 699

MacOS 10.5 and 10.5 server are UNIX03 Single UNIX Specification certified. It meets the criteria for UNIX.

It passes POSIX certification. It has a shell environment. And it has base C header definitions.

It is UNIX certified. But UNIX is a certification. And as such so are AIX, HP/UX, SCO, Solaris, Tru64, and z/OS.

Comment Re:Testable assertion (Score 1) 803

Yes, quite allot actually as I do storage for a living.

First off raid6 failures protect against hard drives that were all made at the same time and installed. This is true if your bought the array, as an array, from a vendor. But if you made it yourself from multiple disks the changes of parallel failure is negligible. And as far as raid6 goes I spend a considerable amount of time converting 6+2 raid 6 arrays into 7+1 raid 5 arrays. In these cases 12TB would be very small.

I also have my own disk arrays at home. Less for enterprise storage and more for those HD ATSC recordings my myth box makes. In it is a 4TB 5x1TB SATA array with a hardware raid card (really it is driver assisted). Aside from the slow write performance (it is expected with raid5) they run fine.

Reading the posting I wonder to myself if he has every watched a raid array rebuild. For that matter has even watched a SAN attached array work. Yes it takes time to rebuild (depends on the size of the disk). But other then slow access time that array when it is rebuilding it is rather transparent to the hosts using the array (not to mention it is pretty hard to saturate and enterprise raid array).

Why someone would mirror a set of mirrors (1+1 or 11) is beyond my understanding. Many of my customers use raid 1+0 (for speed). I have even seen customers use raid 5+1, but we tend to call that "paranoid raid".

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