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Author Topic: [1050 TH] BitMinter.com [1% PPLNS,Pays TxFees +MergedMining,Stratum,GBT,vardiff]  (Read 775202 times)
induktor
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June 20, 2013, 01:45:03 PM
 #3621

Great job at staying on top of the issues here, Doc. Truly impressed at how swiftly and efficiently they're being resolved.
The pool has lost half of its hashrate and has several thousand workers less than a week ago.
Keep in mind that this also could be the result of the lower difficulty in LTC about 3 days ago - to date, and a lot of miners moved to LTC since this (I am one, moved all my rigs to LTC) of course that makes the difficulty to rise again, when that happens, I will get back here Cheesy hehe.

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vince120
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June 20, 2013, 02:06:26 PM
 #3622

More than 15 hours again.

Perhaps I misunderstood but :
- Ddos implies miners have gone
- Less miners implies less THps
- Less THps implies slowest block computing
- Slowest computing implies longer durations

But, considering the increasing difficulty, why do we have >90% CdF ? (with the samed number of hashes computed at 15M difficulty, CDF is higher than at 19M diffuclty) Does Ddos had an impact on CdF considerations Huh

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Epoch
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June 20, 2013, 02:27:10 PM
 #3623

Vince120, there is nothing particularly unusual about a 90%+ CDF. It is normal variance; every pool will run into this. Just like it isn't all that unusual to get a <10% CDF.  Take a look at bitminters recent block stats:

https://bitminter.com/blocks

Right now I see 3 blocks with >90% CDF and 3 blocks with <10% CDF. The reason long blocks get more attention around here than short ones are just that: they hang around, in-your-face, for a long time. Short blocks usually come and go without most people even noticing. The reality is that both types of blocks are equally likely and, over time, they all average out properly.

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vince120
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June 20, 2013, 02:45:48 PM
 #3624

Thank you.

I was asking that because it is the first time I notice 2 consecutive blocks with 90+ CdF.

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loshia
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June 20, 2013, 02:56:54 PM
 #3625

Thank you.

I was asking that because it is the first time I notice 2 consecutive blocks with 90+ CdF.

the worst part is that CDF never reaches 100%  Smiley And it can take a long time and stay on 99% but we will go over it for sure. Good times are coming!

Please help the Led Boy aka Bicknellski to make us a nice Christmas led tree and pay WASP membership fee here:
https://bitcointalk.org/index.php?topic=643999.msg7191563#msg7191563
And remember Bicknellski is not collecting money from community;D
Epoch
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June 20, 2013, 02:58:47 PM
 #3626

Not a problem, Vince.

Just for my own curiousity I was just looking at EclipseMC's (similar pool size as BitMinter) block stats and see that less than 2 weeks ago they had a string of 4 blocks where 3 of them were 99.3%, 95.5%, and 94%. That was a bad week, but guess what: they also had a string of 4 blocks where 3 of them were 0.1%, 0.5%, and 3% to balance it out.

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PCMiner
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June 20, 2013, 04:44:14 PM
 #3627

Thank you.

I was asking that because it is the first time I notice 2 consecutive blocks with 90+ CdF.

If the pool had 30TH you wouldn't notice a 90+cdf block.....  You also would probably be making waaaaaaay less per block 8-)
DrHaribo
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June 20, 2013, 10:27:33 PM
 #3628

1. If the attacks are coming from known IP address - rangers you can easy filter them out on 8.8.8.8 With zero CPU/Network load to your Server 8.8.4.4. I am not aware of the attacks details but believe me Empty Linux box doing nothing just natting one IP can filter a lot  Cheesy  
2. You can use Connection iptables limit - i am not aware if it is a good or bad idea since some miners can be affected also
3. And other fancy stuff Wink

We're not running out of CPU here, but bandwidth. One scrubbing server will just get knocked off the net, same as the mining server itself did.

I could perhaps set up multiple 10 Gbps servers to scrub traffic, at a data center with very high bandwidth and where they don't blackhole (nullroute) you when you get DDoSed. I don't know a good place for that, nor if it can be done for a reasonable price. I think for now Black Lotus is a good choice.

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btceic
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June 20, 2013, 10:35:44 PM
 #3629

@DrHaribo,
I would like to personally thank you for all of the hard work that you have been putting in for us.

Your pool is by far the best and easiest to use and I mention it every chance that I can.

Just know that all of your hard work is paying off

So...

Thank you

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mdude77
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June 20, 2013, 11:21:25 PM
 #3630

fyi I'm not able to reach my miners at the moment.  assuming they are still running, they are probably pointing at the old server.  another 24hours or so I'll be able to check them and fix them.

M

MMinerMonitor author, monitor/auto/schedule reboots/alerts/remote/MobileMiner for Ants and Spondoolies! Latest (5.2). MPoolMonitor author, monitor stats/workers for most pools, global BTC stats (current/nxt diff/USD val/hashrate/calc)! Latest (v4.2) 
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grosskate
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June 21, 2013, 05:36:28 AM
 #3631

Hi Doc'

That s good news for the black lotus protection. When will that be effective exactly ?

Thanks
vince120
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June 21, 2013, 06:00:43 AM
 #3632

It seems it's already effective, isn't it ?

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loshia
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June 21, 2013, 07:03:38 AM
 #3633

1. If the attacks are coming from known IP address - rangers you can easy filter them out on 8.8.8.8 With zero CPU/Network load to your Server 8.8.4.4. I am not aware of the attacks details but believe me Empty Linux box doing nothing just natting one IP can filter a lot  Cheesy  
2. You can use Connection iptables limit - i am not aware if it is a good or bad idea since some miners can be affected also
3. And other fancy stuff Wink

We're not running out of CPU here, but bandwidth. One scrubbing server will just get knocked off the net, same as the mining server itself did.

I could perhaps set up multiple 10 Gbps servers to scrub traffic, at a data center with very high bandwidth and where they don't blackhole (nullroute) you when you get DDoSed. I don't know a good place for that, nor if it can be done for a reasonable price. I think for now Black Lotus is a good choice.

Doc,

In my opinion Black Lotus will not be able to guard your network (bandwidth) usage in case you are victim to UDP due to protocol nature itself. UDP attacks can be filtered in ISP core routers only. If it is a TCP attack it will be OK with both VPN and Black Lotus solution. However what i have noticed so far - when server was down (attacked) it was responding damn fast to wget with 404 page not found. If responses came from your server not from cloudfire it is pretty obvious that there were no issues with bandwidth at all during the attacks.

Good luck Doc - choose what you will be comfortable with  Smiley





Please help the Led Boy aka Bicknellski to make us a nice Christmas led tree and pay WASP membership fee here:
https://bitcointalk.org/index.php?topic=643999.msg7191563#msg7191563
And remember Bicknellski is not collecting money from community;D
DrHaribo
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June 21, 2013, 10:44:48 AM
 #3634

In my opinion Black Lotus will not be able to guard your network (bandwidth) usage in case you are victim to UDP due to protocol nature itself. UDP attacks can be filtered in ISP core routers only. If it is a TCP attack it will be OK with both VPN and Black Lotus solution. However what i have noticed so far - when server was down (attacked) it was responding damn fast to wget with 404 page not found. If responses came from your server not from cloudfire it is pretty obvious that there were no issues with bandwidth at all during the attacks.

UDP will be incredibly easy to defend against since my server won't need UDP to function. Upstream could block all UDP traffic, very easy mitigation. Black Lotus fend off attacks every day, they're not noobs. Smiley

The web server was up during the attacks, that must be where you got a quick 404 response from. Trust me the net connection of the mining server was completely saturated.

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derekleong75
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June 21, 2013, 10:56:07 AM
 #3635

I am heartened by your words doc.
Dont worry I'll find the next few blocks for the team!

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loshia
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June 21, 2013, 11:07:48 AM
 #3636

Doc I will pop up on Irc to discuss it when i (and you) do have time. I feel I  have to stop spamming the topic with FW TCP/UDP and stuff

Thank you very much for your comments.


Please help the Led Boy aka Bicknellski to make us a nice Christmas led tree and pay WASP membership fee here:
https://bitcointalk.org/index.php?topic=643999.msg7191563#msg7191563
And remember Bicknellski is not collecting money from community;D
grosskate
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June 21, 2013, 11:39:30 AM
 #3637

Sorry to ask again but i just want to make sure. Are we from now on protected by black lotus or not yet ?

Thanks
DrHaribo
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June 21, 2013, 12:32:26 PM
 #3638

Sorry to ask again but i just want to make sure. Are we from now on protected by black lotus or not yet ?

Yep, that's what the server move was about.

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grosskate
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June 21, 2013, 02:04:43 PM
 #3639

Sorry to ask again but i just want to make sure. Are we from now on protected by black lotus or not yet ?

Yep, that's what the server move was about.


Awesome thanks a lot !!
Jcw188
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June 21, 2013, 04:57:09 PM
 #3640



I have decided to go with Black Lotus for anti DDoS protection. These guys are expensive, but they are good at what they do.


That is serious investment. I think I'll increase my donation percentage in thanks.

It may not be much now, but when my ASICs arrive, it should help a bit more.

Thanks Doc - you really do care about your mint! Time to show I do too.

I'm wondering if people knew you were now protected by Black Lotus they'd come back.  It would be nice to get hashrate up to decrease variance as I'm an on and off miner.
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