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Author Topic: What's up with all the DDoS?  (Read 2477 times)
AngelusWebDesign
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June 10, 2011, 08:34:07 PM
 #1

Slush's pool AND Deepbit are both getting hit big-time, repeatedly, with Distributed Denial of Service attacks!

What gives?
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June 10, 2011, 08:36:24 PM
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ZOMG!  its HAARP!!!! I knew IT!

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AngelusWebDesign
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June 10, 2011, 08:38:18 PM
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HAARP can only create superstorms and influence the weather -- pretty powerful stuff, but it can't perform a DDoS.

Quit being silly.
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June 10, 2011, 08:38:36 PM
 #4

Add my site to the list as well  Angry

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AngelusWebDesign
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June 10, 2011, 08:39:37 PM
 #5

It's like someone's trying to damage/bring down Bitcoin -- maybe they're selling a bunch of Bitcoin at the same time?
Scientician!
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June 10, 2011, 08:40:02 PM
 #6

Slush's pool AND Deepbit are both getting hit big-time, repeatedly, with Distributed Denial of Service attacks!

What gives?


1. target ~65% of aggregate mining pool with hired zomB net DDoS
2. Continue to mine your own 20-50 Ghash minifarm solo
3. Increase personal likelihood of mining whole blocks by factor of 1000
4. Profit
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June 10, 2011, 08:41:54 PM
 #7

It's like someone's trying to damage/bring down Bitcoin -- maybe they're selling a bunch of Bitcoin at the same time?


We are being challenged, we can come through.

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June 10, 2011, 08:42:34 PM
 #8

My friend had the idea of "what if someone's going DDoS EVERYONE then MINE ALL ALONE so that the difficulty would be theroretically next to nothing.
I told him "dude everyone'll go solo"
He said that "yeah but if you take down the pools then most miners are pointed AFK for awhile, And if your the fastest guy in solo you'd maybe get a block"
I said that it wouldnt be worht the effort

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June 10, 2011, 08:44:31 PM
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My friend had the idea of "what if someone's going DDoS EVERYONE then MINE ALL ALONE so that the difficulty would be theroretically next to nothing.
I told him "dude everyone'll go solo"
He said that "yeah but if you take down the pools then most miners are pointed AFK for awhile, And if your the fastest guy in solo you'd maybe get a block"
I said that it wouldnt be worht the effort
Why you should always have a fallback to solo mining.
Man From The Future
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June 10, 2011, 08:46:46 PM
 #10

The issue here is you'd have to wait until the next difficulty change for it to be worth it - as until then/stopping DDoS, you're just having to mine slowly? :s
Scientician!
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June 10, 2011, 08:48:14 PM
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I just realized though.. removing all that hashing from the pool wouldn't reduce the diff.rate (immediately) so your personal odds of mining a block don't actually change.. I think you'd have to effectively remove a shit-ton of hashing power for an extended period of time and get the diff.rate to go back down for this to be an effective attack vector..

Math isn't necessarily my strong suit. Someone smarter than me please comment.
Man From The Future
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June 10, 2011, 08:51:21 PM
 #12

So basically someone is either just griefing because they can?

Or they want to take out the network because they dislike bitcoins.

(less pools = solo = too much variance for most)
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June 10, 2011, 08:52:52 PM
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Yeah, It would take probably months for the number of blocks to get solved for the difficulty to change.

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Jack of Diamonds
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June 10, 2011, 08:55:33 PM
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So basically someone is either just griefing because they can?

Or they want to take out the network because they dislike bitcoins.

(less pools = solo = too much variance for most)

A denial of service attack costs money and resources (infected PCs valued at $0.25 to $3 each depending on country and bandwidth available).
It's a service that has a tangible real world value.

So it's either someone very bored who has access to his own botnet, or someone is actually paying thousands of dollars per hour just to annoy miners.

There isn't really any financial gain here, since difficulty level only changes every 2016 blocks.
Attackers chances of finding blocks does not go up simply because he forces other miners out for a few hours.

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carriun
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June 10, 2011, 08:57:28 PM
 #15

Slush's pool AND Deepbit are both getting hit big-time, repeatedly, with Distributed Denial of Service attacks!

What gives?


1. target ~65% of aggregate mining pool with hired zomB net DDoS
2. Continue to mine your own 20-50 Ghash minifarm solo
3. Increase personal likelihood of mining whole blocks by factor of 1000
4. Profit

Your probability is based on the difficulty not the current global hash rate.  You would need to run #1 long enough (2 weeks) to affect a difficulty decrease so #2 is profitable
bitcoinBull
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June 10, 2011, 08:57:50 PM
 #16

I just realized though.. removing all that hashing from the pool wouldn't reduce the diff.rate (immediately) so your personal odds of mining a block don't actually change.. I think you'd have to effectively remove a shit-ton of hashing power for an extended period of time and get the diff.rate to go back down for this to be an effective attack vector..

Math isn't necessarily my strong suit. Someone smarter than me please comment.

Yes.  This is correct.

The only suspects who would be motivated by profit to DDoS a pool would be a competing pool.

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Man From The Future
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June 10, 2011, 08:58:21 PM
 #17

So basically someone is either just griefing because they can?

Or they want to take out the network because they dislike bitcoins.

(less pools = solo = too much variance for most)

A denial of service attack costs money and resources (infected PCs valued at $0.25 to $3 each depending on country and bandwidth available).
It's a service that has a tangible real world value.

So it's either someone very bored who has access to his own botnet, or someone is actually paying thousands of dollars per hour just to annoy miners.

There isn't really any financial gain here, since difficulty level only changes every 2016 blocks.
Attackers chances of finding blocks does not go up simply because he forces other miners out for a few hours.
Why are you implying that I said they would gain financially by doing it? Tongue
CydeWeys
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June 10, 2011, 09:00:09 PM
 #18

Slush's pool AND Deepbit are both getting hit big-time, repeatedly, with Distributed Denial of Service attacks!

What gives?


1. target ~65% of aggregate mining pool with hired zomB net DDoS
2. Continue to mine your own 20-50 Ghash minifarm solo
3. Increase personal likelihood of mining whole blocks by factor of 1000
4. Profit

Nope ...

I just realized though.. removing all that hashing from the pool wouldn't reduce the diff.rate (immediately) so your personal odds of mining a block don't actually change.. I think you'd have to effectively remove a shit-ton of hashing power for an extended period of time and get the diff.rate to go back down for this to be an effective attack vector..

Math isn't necessarily my strong suit. Someone smarter than me please comment.

Correct.  Mining isn't a race.  Other people finding (or not finding) blocks doesn't affect your odds in any way.  In the long run, if you manage to knock out significant mining capacity for a long period of time, then you can affect the difficulty level, which so long as your own mining isn't affected, does mean you will end up mining more in the long run.  However, targeting pools is not a good way to do this, because the individual miners will simply hop between pools as one goes down and you won't affect the hashing rate for very long at all (not long enough to have a big long term effect).
TheGer
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June 10, 2011, 09:04:41 PM
 #19

Any challenge to the current fiat controlled banking system will be attacked wether you are a country, a company, or a cryptocurrency not controlled by them.  This is shown time and time again around the world.
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June 10, 2011, 09:16:31 PM
 #20



"Other" has 40% ?



Compared to .49% 2 days ago

June 8th 2011
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