SO this page http://dot-bit.org/tools/nextDifficulty.php is reporting that the namcoin dificulty will drop by nearly half in the next adjustment.  I know that the bitcoin difficulty dropped in it's infancy but was it this steep?

Not affecting me!  Unlike MtGox...  I use Wuala to backup my wallet.  I started using them because they got the security right.  They do not store your password just pseudo-random blobs and you must know your password in order to decrypt.  If you lose the password they can't reset it for you, your data is gone.

If that's the case then salting can/should be improved.  I believe that the more secure method would be to keep a lengthy pseudo-random salt a secret, in a datastore that is physically separated from the application DB.  You begin by hashing the user's password with a well known algorithm.  That output will then be hashed again with the pseudo-random salt added to it.  By doing this you would force the attacker to guess at (or create rainbow tables) for not just the password but for each password they would then need to build a table for that output plus each guess at the salt. 

If the salt is long, pseudo-random, and unknown then it would seem that this would be more secure.  Keeping the salt in a separate datastore where only the logon provider has access to it would thereby make it more difficult for an attacker to gain access to the salt.  Even if they gain access to the computer hash outputs.

My thoughts, perhaps they are wrong...

So does anyone know if the salt was also compromised?  I am in the list and I can confirm that the password column isn't a straight MD5 hash from my password.  However, if the salt has been exposed then it's the same thing as not using one...  

If you perhaps know any of those people with too much money, you can have them get in touch with me.  I am in fact the world's foremost expert in ensuring that I do not have too much money.  I can successfully apply these principals to your life too!!! 

Details in the link.  Here's the Pic.



http://www.pcper.com/news/Graphics-Cards/PowerColor-Shows-New-4GB-AMD-Graphics-Card-Two-Stock-Clocked-6970-GPUs

Jiggle the handle. Works every time.

Thank you so much!  You have saved me ruining a card!  Send me your address and I'll drop you a bit of gratuity.  I'll check out that link and see if good'ol radioshack has the correct resistance size.

Ah!  Now all those dongles on the GPUs in the pictures here make sense!  I have seen pictures of a jumper wire between two pins on a DB15 VGA connector/adapter.  I assume that this takes care of the presence detection for the card?  Can someone fill me in on what pins to jump?

So I am having trouble getting two GPUs running in windows.  I am wondering if there is a secret! 

I have a 6870 that is installed and running with poclbm with guiminer.  I also have a 4870 card in the board's second x16 slot.  The device manager see the card and correctly identifies it. However, when I run poclbm in command line mode I only see [0-0] Barts as well as the CPU. I have also noticed that there is no mention of the 4870 card in CCC. I believe that I'm missing something basic since this is my first attempt at multiple GPUs on a mobo.

So I am having trouble getting two GPUs running in windows.  I am wondering if there is a secret!  

I have a 6870 that is installed and running with poclbm with guiminer.  I also have a 4870 card in the board's second x16 slot.  The device manager see the card and correctly identifies it. However, when I run poclbm in command line mode I only see [0-0] Barts as well as the CPU. I have also noticed that there is no mention of the 4870 card in CCC. I believe that I'm missing something basic since this is my first attempt at multiple GPUs on a mobo.

Hey Slush when you get time, I noticed that in the JSON output I only get the first 24 workers reported.  The same 24 that are on the first page of the user account page.  When you have the time, can you get the remainder of the workers into the JSON feed?

While you are right that it is increasing overall getwork request load, we don't really know for sure that it is pointing to the same location.  If there were no difference between them then slush would not have needed to add a new host name.  The resolved IP is most likely a load balancer which could be routing traffic selectively based on what the requested host name is in the HTTP GET request.  This is the same concept that allows you to host multiple websites with the same server & IP address.  We need slush to weigh in on this.

So with this config, do you make 2 workers for each of your cores?  Although I don't know what the problem with multiple workers logging into the same account I know that it is always said to use one worker for each worker process you run.  With Sebz4n's strategy you will often have two workers connecting that are using the same processing core.

What is the recommended config here?  Slush maybe you can provide some guidance.  I imagine that this may not be necessary forever, but just until the connection issues are corrected is that safe to assume?

Hey sleep.  I actually ran across your WhileIdle thread and was very interested!  I was planning on parsing through your code to see how you were polling for user activity. And then stealing your method!   I have been trying to use the user32.dll API to query the GetLastInputInfo.  So far I have had the problem of the API always returning 0 instead of the tick from the last input.  I am suspecting that it has to do with the separate desktop space that the service resides in.

I unfortunately am writing in VB and have no experience in C# so we can't really combine efforts.  But if you have any advice for me I would appreciate any assistance.  Likewise if you have anything you need help on let me know and I'll be glad to help if I can.

CPU Mining isn't possible if you pay for the electricity.  It just isn't economical.  If you aren't paying for the juice then by all means.  However, why would you use bitcoind?  There are various other miners with way better performance.  The Ufasoft for example works really well and is by default running at low priority.  It will consume 99% by default, however, if the machines are dual core then you can start it with the -t command line option.  -T tells it how many threads to use.  If your processor is a core 2 duo non-hyperthreaded then make the option -t 1 and it will use around 50%.  If you have a Core i5 with hyperthreading then your processor has 4 effective threads and you can launch it with -t 3 and consume around 75%.

You can use GUI miner which allows ufasoft to run without having a presence on the task bar.  The GUI miner app directory is the only thing that need to be copied to the local machines.  And launch at start up.  Oh and let's not forget that ufasoft will GPU mine as well.  Big ups if your machines have a capable GPU

The program I am developing is designed to accomplish the same thing but I am trying to take it a step further.  I am writing a Windows System Service application that will poll the system to see if the user is active.  If not then it will launch the ufasoft miner.  Now that much can be accomplished by the windows task scheduler alone.  The real problem is that I cannot get task scheduler to stop the process when the user resumes activity.  So in comes the necessity of the system service.  In addition to being able to start and stop on user activity, and take advantage of GPU mining, the service will allow one additional benefit.  System services start with the computer and run whether there is a logged on user or not!  Now all you have to do is have the computer turned on to take advantage of it's idle cycles.

Anyway, I am early in development but the process isn't too complex so shouldn't take me too long.  If you are interested in this project you can message me and I'll get it to you when it's completed.  If you like the idea and would also like to help motivate me then my address is below.

I was looking at the EC2 dedicated hosting because of their dynamic load balancing and resource distribution.  One of the big problems that the pools have is dealing with DDos attacks.  The way I see it if a person could mitigate attacks (and the downtime that comes with it) the word would spread quickly and could make you a big player quickly

It's CO2 not CO you shouldn't have to vent it outside as long as the room you are in isn't air tight or extremely small.  Depends on the quantity of dry ice you are vaporizing.  I wouldn't expect the CO2 concentration to raise more than a few tenths of a percent, even with a fairly large block of ice like 3-5 lbs.

It is kind of expensive which I don't think will result in any profit increases.  You are already using a refrigiration unit to cool the miner your so your PUE is already 2 which means you are paying twice for the electricity to mine. Once to run it and once to cool it.  If you want to improve your profits, don't overclock excessively creating heat, you want to find a way to reduce the cost of cooling your miners

I think the calculator is assuming solo mining with no fees to be payed.  So you need to subtract 2% from that.  It also assumes that there is no pool or miner down time and that you don't have your result rejected by the network.

Hmm... Do I have an original idea here?  I wouldn't have expected so.