Configure Settings cgminer

Now we can create a configuration file to store the settings we'll use with cgminer.
Create the file and begin editing it by entering the following command:

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sudo nano cgminer.conf

Update the below template with your mining pool credentials by replacing "PoolAddress:Port", "UserName.WorkerName", and "Password" with your info, then copy & paste into the nano editor:

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{
"pools" : [
        {
                "url" : "PoolAddress:Port",
                "user" : "UserName.WorkerName",
                "pass" : "Password"
        }
]
,
 "api-listen" : true,
 "api-port" : "4028",
 "expiry" : "120",
 "failover-only" : true,
 "log" : "5",
 "no-pool-disable" : true,
 "queue" : "2",
 "scan-time" : "60",
 "worktime" : true,
 "shares" : "0",
 "kernel-path" : "/usr/local/bin",
 "api-allow" : "0/0",
 "icarus-options" : "115200:1:1",
 "icarus-timing" : "3.0=100"
}

The above lines containing "icarus" were included for Block Erupter USB devices, be sure to update them if you are using a different mining device!

For example, if you mine using Slush's pool you would replace "PoolAddress:Port", with:

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"http://stratum.bitcoin.cz:3333",

Once you've updated and pasted the above text, do the following:

1. press ctl+x to begin exiting the file
2. press y to confirm changes
3. press return to save the file

Settings are now saved. We'll reference them later when starting cgminer.