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Topic: BitcoinPool.com open thread - page 7. (Read 29840 times)

legendary
Activity: 1386
Merit: 1097
April 06, 2011, 02:18:09 PM
#55
We've also tracked the attacker to the russian federation/czech republic.

LOOOOOOOOOOOL

No, I'm not the attacker (I'm from CZ) and believe that Tycho (Russia) isn't, too.
hero member
Activity: 742
Merit: 500
BTCDig - mining pool
April 06, 2011, 01:16:16 PM
#54
hacker was changing users' payment addresses.

Any detailed info about what happen? SQL injection, XSS, social engineering or what?

Posted by Geebus on their forum:

Quote from: Geebus
We originally stored everything in plaintext for compatibility with some miners. This was also prior to us adding any account modification tools to the site.

We're working on corrections to the system now to be more secure, and we've since closed the holes that the attacker was using to exploit (essentially hex encoded SQL statements that were overflowing and dumping table data).

We've also tracked the attacker to the russian federation/czech republic.

Our worry was that your wallet ID may have been changed via injection, and that the attacker may have seen your password, which would allow them to log into the account at a later time to change it [your wallet id] by hand.

1) russian federation/czech republic (you know Europe is one big country Smiley , and why not China ?
2) We originally stored everything in plaintext
3) essentially hex encoded SQL statements  

 Lips sealed
sr. member
Activity: 406
Merit: 250
April 06, 2011, 12:51:27 PM
#53
hacker was changing users' payment addresses.

Any detailed info about what happen? SQL injection, XSS, social engineering or what?

Posted by Geebus on their forum:

Quote from: Geebus
We originally stored everything in plaintext for compatibility with some miners. This was also prior to us adding any account modification tools to the site.

We're working on corrections to the system now to be more secure, and we've since closed the holes that the attacker was using to exploit (essentially hex encoded SQL statements that were overflowing and dumping table data).

We've also tracked the attacker to the russian federation/czech republic.

Our worry was that your wallet ID may have been changed via injection, and that the attacker may have seen your password, which would allow them to log into the account at a later time to change it [your wallet id] by hand.
legendary
Activity: 1386
Merit: 1097
April 06, 2011, 11:40:11 AM
#52
hacker was changing users' payment addresses.

Any detailed info about what happen? SQL injection, XSS, social engineering or what?
sr. member
Activity: 406
Merit: 250
April 06, 2011, 08:06:25 AM
#51
Any one notice
no payout since the last totally 120 confirms

Apparently, FairUser and Geebus temporarily stopped all payouts because the hacker was changing users' payment addresses.
full member
Activity: 182
Merit: 107
April 05, 2011, 07:05:33 PM
#50
Also, can enybady tell me what is this?


The number of confirmations of a transaction is exactly how many blocks deep it is in the block chain, with 1 being the current block, 2 being the current block's parent, etc.  The higher the number, the deeper the transaction is embedded in the network's collective history.  A transaction with six confirmations is considered fully confirmed.

The number of connections is simply the number of other Bitcoin nodes you are connected to.  You receive blocks from them, send blocks to them (if you successfully generate one), and send/receive transactions to/from them.
newbie
Activity: 6
Merit: 0
April 05, 2011, 04:59:52 PM
#49
Quote
AMD 5xxx and up
use '-v -w 128' for better performances

This should be "-v -w 128" or "-v -w128" without quote of course?


Also, can enybady tell me what is this?

http://gyazo.com/03045c43c8d83c357515fbff57d555fa.png
newbie
Activity: 6
Merit: 0
April 05, 2011, 04:11:59 PM
#48
go pool then LOL
Thank you, probably I will go Smiley
full member
Activity: 126
Merit: 100
April 05, 2011, 03:38:08 PM
#47
go pool then LOL
newbie
Activity: 6
Merit: 0
April 05, 2011, 03:26:40 PM
#46
Hi miners  Wink

I have a question.
How do I know if I have found the block?

For now, couple days, Im mining solo, but Im thinking about pool.

it will show you in bitcoin client... How many Mh/s do you have? if you are under 2000 Mh/s, it is usually wise to stay in a pool
Oh, usually I have 165Mhp/s  Huh
full member
Activity: 126
Merit: 100
April 05, 2011, 03:12:12 PM
#45
Hi miners  Wink

I have a question.
How do I know if I have found the block?

For now, couple days, Im mining solo, but Im thinking about pool.

it will show you in bitcoin client... How many Mh/s do you have? if you are under 2000 Mh/s, it is usually wise to stay in a pool
full member
Activity: 182
Merit: 107
April 05, 2011, 03:11:41 PM
#44
I have a question.
How do I know if I have found the block?

For now, couple days, Im mining solo, but Im thinking about pool.
If you are mining solo, you'll know when you have 50 BTC in your wallet out of nowhere.  Smiley

If you are mining in a pool, that information may be tracked.  It is on bitcoinpool and slush's pool; others probably show this data somewhere too.
full member
Activity: 182
Merit: 107
April 05, 2011, 03:10:28 PM
#43
And discounting a small sample
makes it invalid Huh
I did not say invalid, I said statistically insignificant.  You are drawing huge conclusions from a very, very tiny set of sample data.  If I flip an evenly-weighted coin and it comes up heads 20 times out of 25, that doesn't mean that the probability for heads to come up on every flip is 4/5.  It means I got lucky.  (Or unlucky, depending on whether heads is a good thing or not.)  As the number of coin flips approaches infinity, the ratio of flips that resulted in heads to total flips will approach 1/2.  The same principle is at play here.

you missed the point
its all LUCK period
Yup, exactly.
newbie
Activity: 6
Merit: 0
April 05, 2011, 03:02:31 PM
#42
Hi miners  Wink

I have a question.
How do I know if I have found the block?

For now, couple days, Im mining solo, but Im thinking about pool.
member
Activity: 112
Merit: 10
April 05, 2011, 02:57:13 PM
#41
MY point is Yes there are shares to be had in mining the whole getwork
but most are before 50% and certainly before the last 25% of the getwork
mining every possibility in every getwork doesn't seem to give the most
22 is not a statistically significant sample size in this context.  Observing my miner for about a week, the valid shares found in each getwork seem pretty uniformly distributed through the nonce-space to me.

That's not so say I haven't had a bad hour or two where I run a bunch of empty getworks.  The way the numbers work, you should average almost exactly one share per getwork that is completely searched.  In other words, your efficiency should be close to 100% on average.  I have some days where I'm consistently around 60% and others I'll be at 150%.

And discounting a small sample
makes it invalid Huh
it shows that mining every last part of every get work is useless
if you have a fast cruncher you never see the fallout ... wasted time

cdhowie  you are new and seem to be a troll

last week don't mean Huh to this week
last week was good this week Huh so what
you missed the point
its all LUCK period

how can you base an efficiency on luck
such an efficiency means NOTHING

full member
Activity: 182
Merit: 107
April 05, 2011, 02:47:25 PM
#40
MY point is Yes there are shares to be had in mining the whole getwork
but most are before 50% and certainly before the last 25% of the getwork
mining every possibility in every getwork doesn't seem to give the most
22 is not a statistically significant sample size in this context.  Observing my miner for about a week, the valid shares found in each getwork seem pretty uniformly distributed through the nonce-space to me.

That's not so say I haven't had a bad day or two where I run getworks that mostly turn up nothing at all.  The way the numbers work, you should average almost exactly one share per getwork that is completely searched.  In other words, your efficiency should be close to 100% on average.  I have some days where I'm consistently around 60% and others I'll be at 150%.
member
Activity: 112
Merit: 10
April 05, 2011, 01:33:16 PM
#39
22 getshares crunched now 
of 25 shares returned
4 over 50%
2 over 75%

You get the picture ..
16% in the last 50% of the getwork
8% in the last 25% of the getwork

MY point is Yes there are shares to be had in mining the whole getwork
but most are before 50% and certainly before the last 25% of the getwork
mining every possibility in every getwork doesn't seem to give the most

ok its becoming apparent

8 of 18 blocks yield results
9   results below 50%
2   results above 50%
1   results above 75%
yield after 50% hash of a get work    not much

efficiency went from 200%  down to 60%

How can you possibly rate the efficiency of luck Huh
It's lucky when you find a share... it's lucky if that or any share finds the block
My luck has no bearing on what happens in the future
My past luck has nothing to do with now


another thing I'm noticing
I've only got shares on 4 of 7 blocks
but have a 0 for emp (blocks with out share)


Ive been monitoring poclbm-mod since the drive to remove those with low efficiency

what i'm seeing is that it continues hashing the current getwork after it finds an invalid/stale share
should it not get a fresh getwork after finding bad results Huh

I also tried using poclbm-mod for cpu
First off my hash rate on the cpu was 20% of what pudinpop's rpc miner were
my results also showed that after the first longpole block change  most block changes were missed
resulting in mostly invalid/stale shares being found

This is NOT a bitch or complaint against the pool or the operators
Just my findings - Yours results may differ


member
Activity: 112
Merit: 10
April 05, 2011, 01:11:17 PM
#38
Any one notice
no payout since the last totally 120 confirms
legendary
Activity: 1596
Merit: 1100
April 05, 2011, 12:58:41 PM
#37
I also tried using poclbm-mod for cpu
First off my hash rate on the cpu was 20% of what pudinpop's rpc miner were
my results also showed that after the first longpole block change  most block changes were missed
resulting in mostly invalid/stale shares being found

If you use my cpuminer or ufasoft's CPU miner, you will get far more performance on CPU.

poclbm and puddinpop were not built for CPU mining.  That is largely an afterthought, and it shows with lower performance.

member
Activity: 112
Merit: 10
April 05, 2011, 12:53:03 PM
#36
ok its becoming apparent

8 of 18 blocks yield results
9   results below 50%
2   results above 50%
1   results above 75%
yield after 50% hash of a get work    not much

efficiency went from 200%  down to 60%

How can you possibly rate the efficiency of luck Huh
It's lucky when you find a share... it's lucky if that or any share finds the block
My luck has no bearing on what happens in the future
My past luck has nothing to do with now


another thing I'm noticing
I've only got shares on 4 of 7 blocks
but have a 0 for emp (blocks with out share)


Ive been monitoring poclbm-mod since the drive to remove those with low efficiency

what i'm seeing is that it continues hashing the current getwork after it finds an invalid/stale share
should it not get a fresh getwork after finding bad results Huh

I also tried using poclbm-mod for cpu
First off my hash rate on the cpu was 20% of what pudinpop's rpc miner were
my results also showed that after the first longpole block change  most block changes were missed
resulting in mostly invalid/stale shares being found

This is NOT a bitch or complaint against the pool or the operators
Just my findings - Yours results may differ


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