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Not sure what happened.
Someone was able to change a number of settings on my minera setup. I was exposing the web port (I know, bad bad), but I had changed the default web password. However, that said, they were still able to change my pool, added their IP to the cgminer API whitelist, as well as changed the web password for minera so I could not log in.
At any rate, where do the failed login attempts get logged to (is there a log file some place)? I'd like to try and setup Fail2Ban, so this hopefully doesn't happen again in the future?
[EDIT]
Some more details, for anyone that cares.
Here is the IP that was added to the whitelist: 93.183.238.234
Here is the Pools they added:
stratum+tcp://scrypt.hk.nicehash.com:3333,3PrTbZQaWJL9b3Uq6vEMgkgLHiZoRWTMmL.152,x
stratum+tcp://litecoinpool.org:3333,newvol.2,1
They also removed those pools (probably after realizing I only have 40 GH/s on a couple of stick miners :-)
They then left my old pools, but changed the usernames to their own BTC addresses to gather the dust I produce.
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design-by-committee is great
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I've seen some people mention here USB Y-Splitters (something like this?) If I plugged the power side into say a 2.1amp phone charger, and the data side into a USB hub, would that work to supply the power needed and allow for running at the 350MHz range? Or do I need to make other modifications to allow the Y-Splitter to work? If the powered hub is not restricted per port, yes that would. That's why a lot of people including me are using the superbpag 5V/14W hub  So if I got the superbpag hub, would I need a splitter or will that hub provide enough power all on its own? |
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At 350MHz your sticks are probably drawing at least 8W, so 5V 1.6A
There aren't a lot of hubs comfortable with that kind of draw without modification. It's probably an issue with voltage drop between the power brick and the USB jack itself. If you want to do any kind of really-pushing-it overclocking, you definitely want one of those plug-in USB power meters. That'll tell you a lot about what's going on.
Ok, thanks for the input. I just purchased one of those USB power meters like Jake36 recommended below. I've seen some people mention here USB Y-Splitters (something like this?) If I plugged the power side into say a 2.1amp phone charger, and the data side into a USB hub, would that work to supply the power needed and allow for running at the 350MHz range? Or do I need to make other modifications to allow the Y-Splitter to work? |
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I want to play around with overclocking and see what can be done, as well as understand some more about amps/watts/volts. I have the following hub: Sabrent 4-Port USB 3.0 HubI also got the following 5v-4A wall-wart: Sabrent 5V 4A 100V-240V to DC Power AdapterIf it matters, this is all plugged into a raspberrypi. With a single compac plugged in to the hub, and the potentiometer at about 9-oclock (0.74v?), I've run at 350MHz for about 7 days. I haven't tried going any higher yet. I've got a fan blowing on it, and things seem ok. Haven't wanted to try and push it more just yet. With two compacs plugged into the hub, and the potentiometer at about 9-oclock (0.74v?) for one and 0.77v for the other, I can't run any higher than 250MHz, or else one of the compacs starts hashing, but after a few seconds goes zombie. Then it starts again, and shortly after goes zombie. I've tried 300 and 275, but no luck. I'm assuming my issue is power to the compacs, and that the hub I have just can't keep up. What would be the best way to confirm this? I don't have any other hubs, and I don't know that I want to spend $35 on a superbrag (i've seen it mentioned here multiple times) right now until I can fully rule out my hub as the drag. |
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If you've got a volt meter, measure the voltages on the testpads on the back. Measure the core voltage when it's first plugged in, and then when cgminer tries to start mining with it, and see if it changes. That'll let you know whether it's an ASIC issue or a power issue.
So I used my volt meter on the good stick, and got a reading. So I knew I was doing things right. I plugged in the "bad" stick, green light comes on. Check with volt meter shows 0. Start up cgminer. Still shows 0. Let cgminer do its thing, and try to hotplug. Still shows 0. Test the volt meter against my good stick, and I get readings. So does this mean the asic is bad? Or maybe something blew? Like I said, all was good until I did a reboot of my PI the other day. Now only one stick is good. Anything else I can try and test to see if I can diagnose it? When you checked, did you plug the no reading 1, it into a different slot on the hub or into the same slot as the stick that you got readings on? If it was in the same slot, that would rule out something in the hub going out. Tested them both direct connected to my laptop, so no hub. Wanted to rule out anything I could that might cause an issue. Tried both USB ports on the laptop just to be sure. Same results. |
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Something definitely happened to cause the power to kick out. Either the ASIC shot craps, or it's an issue with the power circuit itself. The ASIC shouldn't shoot craps unless it was run too hot. Is there discoloration on the backside of the PCB?
I don't see anything? Sorry maybe not the best pics, I can try and take better ones tomorrow in daylight. http://imgur.com/UfmggW0http://imgur.com/syxVyGT |
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If you've got a volt meter, measure the voltages on the testpads on the back. Measure the core voltage when it's first plugged in, and then when cgminer tries to start mining with it, and see if it changes. That'll let you know whether it's an ASIC issue or a power issue.
So I used my volt meter on the good stick, and got a reading. So I knew I was doing things right. I plugged in the "bad" stick, green light comes on. Check with volt meter shows 0. Start up cgminer. Still shows 0. Let cgminer do its thing, and try to hotplug. Still shows 0. Test the volt meter against my good stick, and I get readings. So does this mean the asic is bad? Or maybe something blew? Like I said, all was good until I did a reboot of my PI the other day. Now only one stick is good. Anything else I can try and test to see if I can diagnose it? |
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If you've got a volt meter, measure the voltages on the testpads on the back. Measure the core voltage when it's first plugged in, and then when cgminer tries to start mining with it, and see if it changes. That'll let you know whether it's an ASIC issue or a power issue.
Just purchased one in Amazon. I'll report back what I find. Hopefully it's not an ASIC issue. |
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Ive got a bitshopper version of the stick and I occasionally have the same problem. I have to hotplug it sometimes upto 10 times and restart cgminer before its recognised. But once it is will happily run 250m.
Strangely enough ive found its most tempermental when its cold. Once its warmed slightly, even if you hold it in your hands, it starts up the first time the majority of the time.
Interesting. I'll try leaving it in my garage for awhile, it usually warms up in there compared to the rest of the house. See if a "warm start" can get things going again. General question, if the light is green, and it pops in cgminer enough to get the serial and start cycling (reset, zombie, no hash, reset, zombie, no hash, etc), is that generally a sign there is hope it's not dead? Is there any other way to probe it or check to see if there is any hope? |
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its your hub.. at 200M you are right at the .9A most hubs can put out..
try going down to 196.88
Sorry, I should have mentioned. Now that I am troubleshooting, I'm running at 125mhz, just to se if it'll perk up. Doesn't matter, on the hub or direct connected to A PC, it just want start hashing. The other unit runs fine, at 200 MHz still. Both were running for weeks with no issues until the reboot. Try plugging the one in after cgminer is running (hot plugging it). Tried that just now. Tried starting with nothing plugged in, and then plugging in the stick, but got the same error (No valid hashes for over 10 secs, attempting to reset). Tried starting with the stick in, and after it failed, tried unplugging and replugging. No luck. I'm going to try compiling VH's versions of cgminer, and see if that shows anything different. Is there anyway to check/debug whats going on? |
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its your hub.. at 200M you are right at the .9A most hubs can put out..
try going down to 196.88
Sorry, I should have mentioned. Now that I am troubleshooting, I'm running at 125mhz, just to se if it'll perk up. Doesn't matter, on the hub or direct connected to A PC, it just want start hashing. The other unit runs fine, at 200 MHz still. Both were running for weeks with no issues until the reboot. |
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Received mine a few weeks ago. Both have been running fine connected to a powered USB hub, humming along at 200 MHz with a fan. Yesterday I rebooted my raspberry pi, and now one of them won't seem to start hashing, no matter the frequency I specify. It just keeps cycling into failure. The other one is fine, and works with no issues. cgminer version 4.9.2 - Started: [2016-04-30 19:09:20.472]
--------------------------------------------------------------------------------
(5s):0.000 (1m):0.000 (5m):0.000 (15m):0.000 (avg):0.000h/s
A:0 R:0 HW:0 WU:0.0/m
Connected to stratum.XXXXXX.XXX diff 1.02K with stratum as user XXXXXX
Block: 293f16aa... Diff:179G Started: [19:09:20.473] Best share: 0
--------------------------------------------------------------------------------
[U]SB management [P]ool management [S]ettings [D]isplay options [Q]uit
1: COMPAC 10002743: 150MHz | 0.000 / 0.000h/s WU:0.0/m
--------------------------------------------------------------------------------
[2016-04-30 19:09:17.980] Started cgminer 4.9.2
[2016-04-30 19:09:19.468] Probing for an alive pool
[2016-04-30 19:09:19.631] Pool 0 difficulty changed to 1024
[2016-04-30 19:09:20.473] Network diff set to 179G
[2016-04-30 19:09:31.166] COMPAC 0: No valid hashes for over 10 secs, attempting to reset
[2016-04-30 19:09:31.167] COMPAC 0 attempted reset got err:(0) LIBUSB_SUCCESS
[2016-04-30 19:10:31.154] COMPAC 0: Device failed to respond to restart
[2016-04-30 19:10:31.155] COMPAC 0 failure, disabling!
[2016-04-30 19:10:34.181] Hotplug: Gekko added COMPAC 1
[2016-04-30 19:10:45.116] COMPAC 1: No valid hashes for over 10 secs, attempting to reset
[2016-04-30 19:10:45.117] COMPAC 1 attempted reset got err:(0) LIBUSB_SUCCESS
I've tried changing the voltage, switching USB reports, and even plugging into a different device (OS X laptop), and this one just never gets going. The light is green, just not sure how to get it going again. Any suggestions? |
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Solar is honestly a different investment then mining. It can be used for mining but think of them as 2 investments. If using a decent quantity of miners it just would take a ton of solar gear, and is cheaper to follow cheap electricity. Oh, totally agreed. I'm getting the solar for reasons outside of mining. But because of the solar, i'd be able to mine at $0.07 / kWh vs $0.12 / kWh, as my normal day to day at the house won't be utilizing any of my normal tier 1 electricity rate. A week ago I would have said heck yea go get a S5. But with around 100 in a week higher price I would say do your ROI math. For some there is profit others there is not.
And honestly everyone that bought their gear a while back and still mining with it is the ones that are doing good at home mining.
Not sure what you mean by the 100 in a week higher price. Do you mean the price of bitcoin going up, or that the price of S5s have gone up? Are S5s pretty much the best deal hardware wise right now? Is there anything else worth even evaluating? |
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If you are ready to pour money into this hobby for the energy bills then you are not too late. Otherwise you are too late!
Not what I was hoping to hear! |
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I had done some CPU mining back in the early days, then GPU mining some alt-coins back in the big run up in 2013. I've been out of the game for the last year or so, because the economics just didn't make sense.
I just moved into a new place, and am getting solar installed that will just about net out my electricity usage. What that means is that I should have some capacity in my "base" tier ($0.07 / kWh) to run an asic miner, if it made sense.
To be honest, I don't know where to start. Is it best to buy new miner or get an older miner used? Is there anything coming available soon that would make sense to wait on? Is there anything available today that can be run small scale, and not cost more to run than it makes?
I'm not looking to get rich, it would be more of a hobby thing. But I don't want to run the hobby if it's going to run negative the whole time.
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Honest question, but how do you steal a PC? If the key is hard coded in the code, then really you wouldn't be stealing a PC as the previous owner would still have the key, right?
So if Josh originally had 15 PC Keys, how could he no longer have those? Unless he lost them (formatted hard drive, shredded copies, etc), he would still have access, no? And as has been said, just getting a key doesn't grant you the coins in that PC. So even if someone got the keys, Garza would still have the 1.8million coins from those 15 PCs, right?
Unless what is being said is that someone emptied 1.8 million coins from Joshs wallets, transferred them to wallets they control, and then used josh's PC keys? Wouldn't we be able to see that somewhere on the blockchain?
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A couple of things I've wondered, for those of you that are scouring the email trove... - Was there ever any talk about SHA-256 for the Prime Hashlets?
- Was there ever any talk about how the boosters worked (like double dip, etc)? I know it was all virtual, but would be interesting to see some kind of talk about it.
- Was there ever any talk about hashbase?
I know there was a lot of hype/talk about these over on hash talk by Josh back in the day. Just curious if any of it was shot around vas email, or was it all just Josh being Josh? |
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A bit of humor here where the scumbags thought that Suchmoon might be the "woman" Stacey Tenen (Rootdude):   Something else that is proven by these Emails is that Luke Rusten is not the nice innocent guy everyone seems to believe. He is actively and gleefully trying to hunt down a customer (Suchmoon) so that he can be criminally harassed, or worse. Fuck him, he is as big of a piece of trash as the rest of those criminals. You seriously never go outside do you? Really the amount of time you spend here is well passed obsessive. The amount of post and hours of the day are pretty much almost 24/7. Its down right just pathetic at this point. Seriously, Go outside See the Sun. Meet a Girl, Something but for fuck sake Get a Life, 24/7 on the pc cant be good for your health. I worried about you! Toodles. Look forward to my picture Hows that laptop doing you got for shilling from Josh Coinstand? |
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