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Author Topic: [CLOSED] BTC Guild - Pays TxFees+NMC, Stratum, VarDiff, Private Servers  (Read 828783 times)
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eleuthria
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October 12, 2013, 04:30:56 PM
 #4201

Invalid certificate errors are expected for people who use DNS resolvers which are still using the cloudflare nameservers.  It's been about 18 hours since moving to a new nameserver, ideally you would be updated already.  It only took about 4 hours to update on my PC using Google's DNS servers.  There's absolutely nothing I can do on my end to fix the cloudflare certificates, it's just a waiting game for your DNS resolvers to use the proper nameservers.

R.I.P. BTC Guild, 2011 - 2015.
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October 12, 2013, 04:54:41 PM
 #4202

Invalid certificate errors are expected for people who use DNS resolvers which are still using the cloudflare nameservers.  It's been about 18 hours since moving to a new nameserver, ideally you would be updated already.  It only took about 4 hours to update on my PC using Google's DNS servers.  There's absolutely nothing I can do on my end to fix the cloudflare certificates, it's just a waiting game for your DNS resolvers to use the proper nameservers.

I think you can Wink ... not now, but for next time, you can set shorter validity (or shorter refresh) of DNS records ... but you can have good reason to keep it the same as today Smiley

@   IN  SOA     nameserver.place.dom.  postmaster.place.dom. (
                               1            ; serial number
                               3600         ; refresh   [1h]
                               600          ; retry     [10m]
                               86400        ; expire    [1d]
                               3600 )       ; min TTL   [1h]
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October 12, 2013, 05:23:29 PM
 #4203

Invalid certificate errors are expected for people who use DNS resolvers which are still using the cloudflare nameservers.  It's been about 18 hours since moving to a new nameserver, ideally you would be updated already.  It only took about 4 hours to update on my PC using Google's DNS servers.  There's absolutely nothing I can do on my end to fix the cloudflare certificates, it's just a waiting game for your DNS resolvers to use the proper nameservers.

I think you can Wink ... not now, but for next time, you can set shorter validity (or shorter refresh) of DNS records ... but you can have good reason to keep it the same as today Smiley

@   IN  SOA     nameserver.place.dom.  postmaster.place.dom. (
                               1            ; serial number
                               3600         ; refresh   [1h]
                               600          ; retry     [10m]
                               86400        ; expire    [1d]
                               3600 )       ; min TTL   [1h]

The problem is a significant number of those settings are completely ignored by ISP level DNS caching/resolvers.

R.I.P. BTC Guild, 2011 - 2015.
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eleuthria
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October 12, 2013, 08:32:21 PM
 #4204

Well, it was bound to happen.  After months of an attacker proxying through MILLIONS of bots to get around IP bans, trying to find a collission of BTC Guild usernames/passwords from who knows how many database leaks from other websites, the attacker recently started trying a new vector.  In the last 12 hours, a significant number of password reset attempts were made, because the attacker is now trying to use the password reset function as a way to narrow their brute force attack down to only valid usernames.

New attack detection systems have been added now which have stopped the attacker from successfully determining if their attempts are valid usernames or not.  If you received an email about a password reset, this was likely because you either use a very common username, your username is publicly known (forum username for example), or your username is part of a database leak from another website.  However, knowing the username is valid does not mean they know your email, or your password.  Without being able to access your email, the password reset cannot be completed.

If you DID receive a password reset email, make sure your password is not reused from another website which may have had a compromised password list due to plaintext or poor salting.  If you received a reset email, your username was in a database that somebody has compiled which has passwords that your username has used on other websites in the past.

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October 12, 2013, 10:18:53 PM
 #4205

New attack detection systems have been added now which have stopped the attacker from successfully determining if their attempts are valid usernames or not.

At the rate you're making security fixes, your website probably has better security now than NASA....

Now hanging out on Atomic-Trade.com...
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October 12, 2013, 10:34:10 PM
 #4206

New attack detection systems have been added now which have stopped the attacker from successfully determining if their attempts are valid usernames or not.

At the rate you're making security fixes, your website probably has better security now than NASA....

Hah.  Luckily to date no security fix has been vital, it's mostly about limiting the effectiveness of brute forcing by either eliminating methods to reduce entropy (finding usernames via password reset attempts) or eliminating the ability to use a single machine for more than a dozen or so attempts.  Same thing with the recent changes to the Stratum frontend where it's validating legitimate miners over botnets/attackers.  It wasn't vital, but it severely impacted the efficiency of the future attacks as well as minimized the actual damage they did.

R.I.P. BTC Guild, 2011 - 2015.
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eleuthria
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October 12, 2013, 11:25:57 PM
 #4207

The website speed should see a decent speed boost once your DNS updates.  Last night at the start of the server move, an Amazon EC2 small instance was being used with iptables to simply proxy requests to the real server (keep it protected from attack) to get off of Cloudflare ASAP.  Now migrating DNS to a dedicated box using a more sophisticated reverse proxy setup to speed up the general navigation.  It was never obscenely slow, but there was definitely a minimum ~150ms delay added to each page load due to the EC2 proxy.  The new server should reduce that delay by a reasonable margin.

This should not trigger SSL complaints like the previous switch.  The new reverse proxy responds with the same hostname and SSL certificate as before.  Hopefully by now most/all users are no longer seeing a Cloudflare issued certificate due to the slowness of nameserver updating.

R.I.P. BTC Guild, 2011 - 2015.
BTC Guild Forum Thread
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October 12, 2013, 11:47:58 PM
 #4208

Website doing funky things atm, not loading correctly - part of the new transition?

"When one person is deluded it is called insanity - when many people are deluded it is called religion" - Robert M. Pirsig.  I don't want your coins, I want change.
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October 13, 2013, 12:23:55 AM
 #4209

Website doing funky things atm, not loading correctly - part of the new transition?

Should be fixed now.  If the page has virtually no styling to it, clear your cache (or hold CTRL and hit F5 to do a force reload).

R.I.P. BTC Guild, 2011 - 2015.
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October 13, 2013, 01:01:07 AM
 #4210

Website doing funky things atm, not loading correctly - part of the new transition?

Should be fixed now.  If the page has virtually no styling to it, clear your cache (or hold CTRL and hit F5 to do a force reload).

You got it my man - working  Grin

"When one person is deluded it is called insanity - when many people are deluded it is called religion" - Robert M. Pirsig.  I don't want your coins, I want change.
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eleuthria
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October 13, 2013, 01:05:30 AM
 #4211

Website doing funky things atm, not loading correctly - part of the new transition?

Should be fixed now.  If the page has virtually no styling to it, clear your cache (or hold CTRL and hit F5 to do a force reload).

You got it my man - working  Grin

Glad to hear it Smiley.  The reverse proxy was setup to cache all the static files locally, but it wasn't redirecting the CSS imports properly so outside of the main CSS file nothing was styled.  I changed the links slightly so your browser *should* automatically get the corrected version now even if you had the bad version cached.

R.I.P. BTC Guild, 2011 - 2015.
BTC Guild Forum Thread
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October 13, 2013, 01:24:04 AM
 #4212

I keep getting "Stratum from pool 0 is requesting work update" messages when trying to connect to the pool, instead of shares. I can see I get a first share (probably the bot checking) and then the pool gives me a new URL and then some message that the pool is issuing work for an old block and then the work updates. Any idea about what I'm doing wrong?

Bitcoin is like a variation of Schrodinger's Cat. Everything about it is both scam and fully legit at the same time until you open the box.
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October 13, 2013, 01:25:19 AM
 #4213

just sounds like a startup procedure to me

Side note: DONT POST THE URL.

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October 13, 2013, 05:00:50 PM
 #4214

There were some reports from users with bfgminer using startup scripts that immediately connect to multiple pools NOT using failover-only getting messages related to the pool giving them old/stale blocks on stratum.btcguild.com .  Last night I pushed out an update to the code on that server which hopefully fixes the problem.  This error was related to how the server was changed to filter/validate miners to separate botnets/DDoS traffic from legitimate users.

If you were having this problem previously, please let me know if it is still happening.  I have not patched the eu-stratum.btcguild.com server with this update since I want to make sure it works first, but I have so far been unable to duplicate the issue myself.

R.I.P. BTC Guild, 2011 - 2015.
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October 13, 2013, 05:15:51 PM
 #4215

If you were having this problem previously, please let me know if it is still happening. 

It connected right away now. So whatever you did, it worked. Thanks.

Bitcoin is like a variation of Schrodinger's Cat. Everything about it is both scam and fully legit at the same time until you open the box.
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October 13, 2013, 11:44:26 PM
 #4216

There were some reports from users with bfgminer using startup scripts that immediately connect to multiple pools NOT using failover-only getting messages related to the pool giving them old/stale blocks on stratum.btcguild.com .  Last night I pushed out an update to the code on that server which hopefully fixes the problem.  This error was related to how the server was changed to filter/validate miners to separate botnets/DDoS traffic from legitimate users.

If you were having this problem previously, please let me know if it is still happening.  I have not patched the eu-stratum.btcguild.com server with this update since I want to make sure it works first, but I have so far been unable to duplicate the issue myself.
Can BFGMiner connect to two pools at the same time? I didn't know that.

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October 13, 2013, 11:50:37 PM
 #4217

Can BFGMiner connect to two pools at the same time? I didn't know that.

CGMiner can so I suppose BFGMiner maintained that capability when it was forked.  That is one of their main strengths is to have multiple pools for failover, balancing or one of several other mining strategies.

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October 14, 2013, 12:14:55 AM
 #4218

Yep --balance --load-balance options, thing is it basically connecting and reconnecting to the servers you add, now you loose failover option when doing load balance or balance options and there is some hashing power you'll loose due to the over head of constant connects and reconnects. about 20% from what i have tested.
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October 14, 2013, 12:28:23 AM
 #4219

Thanks guys, I'll look into that. I've always wanted to mine in two pools but splitting hashing power manually is too much work. 20% is quite high but I'll still look into it and see how it works for a few days.

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October 14, 2013, 12:38:43 AM
 #4220

20% is quite high but I'll still look into it and see how it works for a few days.

That is way higher than my experience.  My problem with load balancing was that the split was very uneven.  But now with the new quota method it may be better.

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Q: Why is top-posting such a bad thing?
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Q: What is the most annoying thing on usenet and in e-mail?
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