./minerd --url=stratum+tcp://127.0.0.1:17117  --userpass=3KFHKvFjjfcNYsWRJz8Bt8TtWSrLsC7Neh:yyy  -a sha256d -D -P

[2018-10-24 00:34:35] > {"id": 1, "method": "mining.subscribe", "params": ["cpuminer/2.5.0"]}
* Failed to get recent socket
[2018-10-24 00:34:35] stratum_recv_line failed
[2018-10-24 00:34:35] ...retry after 30 seconds

/home/vader/.bitcoin/nomp/libs/poolWorker.js:278
                            pools[currentPool].getStratumServer().handleNewClient(socket);
                                                                 ^

TypeError: Cannot read property 'handleNewClient' of undefined

sudo apt-get install libcap2-bin
sudo setcap cap_net_bind_service=+ep `readlink -f \`which node\``

2018-10-23 21:29:43 [Pool]	[bitcoin] (Thread 1) Downloaded NaN% of blockchain from 2 peers
2018-10-23 21:29:48 [Pool]	[bitcoin] (Thread 1) Downloaded NaN% of blockchain from 2 peers
2018-10-23 21:29:53 [Pool]	[bitcoin] (Thread 1) Downloaded NaN% of blockchain from 2 peers
2018-10-23 21:29:58 [Pool]	[bitcoin] (Thread 1) Downloaded NaN% of blockchain from 2 peers
2018-10-23 21:30:03 [Payments]	[bitcoin] Finished interval - time spent: 3ms total, 1ms redis, 2ms daemon RPC
2018-10-23 21:30:03 [Pool]	[bitcoin] (Thread 1) Downloaded NaN% of blockchain from 2 peers
2018-10-23 21:30:08 [Pool]	[bitcoin] (Thread 1) Downloaded NaN% of blockchain from 2 peers

{
    "logLevel": "debug",
    "logColors": true,

    "cliPort": 17117,

    "clustering": {
        "enabled": true,
        "forks": "auto"
    },

    "defaultPoolConfigs": {
        "blockRefreshInterval": 1000,
        "jobRebroadcastTimeout": 55,
        "connectionTimeout": 600,
        "emitInvalidBlockHashes": false,
        "validateWorkerUsername": true,
        "tcpProxyProtocol": false,
        "banning": {
            "enabled": true,
            "time": 600,
            "invalidPercent": 50,
            "checkThreshold": 500,
            "purgeInterval": 300
        },
        "redis": {
            "host": "127.0.0.1",
            "port": 6379
        }
    },

    "website": {
        "enabled": true,
        "host": "0.0.0.0",
        "port": 80,
        "stratumHost": "cryppit.com",
        "stats": {
            "updateInterval": 60,
            "historicalRetention": 43200,
            "hashrateWindow": 300
        },
        "adminCenter": {
            "enabled": true,
            "password": "password"
        }
    },

    "redis": {
        "host": "127.0.0.1",
        "port": 6379
    },

    "switching": {
        "switch1": {
            "enabled": false,
            "algorithm": "sha256",
            "ports": {
                "3333": {
                    "diff": 10,
                    "varDiff": {
                        "minDiff": 16,
                        "maxDiff": 512,
                        "targetTime": 15,
                        "retargetTime": 90,
                        "variancePercent": 30
                    }
                }
            }
        },
        "switch2": {
            "enabled": false,
            "algorithm": "scrypt",
            "ports": {
                "4444": {
                    "diff": 10,
                    "varDiff": {
                        "minDiff": 16,
                        "maxDiff": 512,
                        "targetTime": 15,
                        "retargetTime": 90,
                        "variancePercent": 30
                    }
                }
            }
        },
        "switch3": {
            "enabled": false,
            "algorithm": "x11",
            "ports": {
                "5555": {
                    "diff": 0.001,
                    "varDiff": {
                        "minDiff": 0.001,
                        "maxDiff": 1, 
                        "targetTime": 15, 
                        "retargetTime": 60, 
                        "variancePercent": 30 
                    }
                }
            }
        }
    },

    "profitSwitch": {
        "enabled": false,
        "updateInterval": 600,
        "depth": 0.90,
        "usePoloniex": true,
        "useCryptsy": true,
        "useMintpal": true,
        "useBittrex": true
    }
}

{
    "enabled": true,
    "coin": "bitcoin.json",

    "address": "3KFHKvFjjfcNYsWRJz8Bt8TtWSrLsC7Neh",

    "paymentProcessing": {
        "enabled": true,
        "paymentInterval": 20,
        "minimumPayment": 5,
        "daemon": {
            "host": "127.0.0.1",
            "port": 8332,
            "user": "xxx",
            "password": "yyy"
        }
    },

    "ports": {
        "3008": {
            "diff": 8
        },
        "3032": {
            "diff": 32,
            "varDiff": {
                "minDiff": 8,
                "maxDiff": 4096,
                "targetTime": 15,
                "retargetTime": 90,
                "variancePercent": 30
            }
        },
        "3256": {
            "diff": 256
        }
    },

    "daemons": [
        {
            "host": "127.0.0.1",
            "port": 8332,
            "user": "xxx",
            "password": "yyy"
        }
    ],

    "p2p": {
        "enabled": true,
        "host": "127.0.0.1",
        "port": 8333,
        "disableTransactions": true
    },

    "mposMode": {
        "enabled": false,
        "host": "127.0.0.1",
        "port": 3306,
        "user": "me",
        "password": "mypass",
        "database": "ltc",
        "checkPassword": true,
        "autoCreateWorker": false
    }

}

2018-10-23 20:02:54 [POSIX]	[Connection Limit] (Safe to ignore) POSIX module not installed and resource (connection) limit was not raised
2018-10-23 20:02:54 [Master]	[CLI] CLI listening on port 17117
2018-10-23 20:02:55 [Master]	[PoolSpawner] Spawned 1 pool(s) on 1 thread(s)
2018-10-23 20:02:55 [Payments]	[bitcoin] Payment processing setup to run every 20 second(s) with daemon (xxx@127.0.0.1:8332) and redis (127.0.0.1:6379)
events.js:183
      throw er; // Unhandled 'error' event
      ^

Error: bind EACCES 0.0.0.0:80
    at listenOnMasterHandle (net.js:1420:16)
    at rr (internal/cluster/child.js:121:12)
    at Worker.send (internal/cluster/child.js:88:7)
    at process.onInternalMessage (internal/cluster/utils.js:42:8)
    at emitTwo (events.js:131:20)
    at process.emit (events.js:214:7)
    at emit (internal/child_process.js:762:12)
    at _combinedTickCallback (internal/process/next_tick.js:142:11)
    at process._tickCallback (internal/process/next_tick.js:181:9)
2018-10-23 20:02:55 [Master]	[Website] Website process died, spawning replacement...
2018-10-23 20:02:55 [Payments]	[bitcoin] Finished interval - time spent: 4ms total, 2ms redis, 2ms daemon RPC
2018-10-23 20:02:55 [Switching]	[Setup] (Thread 1) Loading last proxy state from redis
2018-10-23 20:02:55 [Pool]	[bitcoin] (Thread 1) Share processing setup with redis (127.0.0.1:6379)
2018-10-23 20:02:55 [Pool]	[bitcoin] (Thread 1) No rewardRecipients have been setup which means no fees will be taken
2018-10-23 20:02:55 [Pool]	[bitcoin] (Thread 1) Daemon is still syncing with network (download blockchain) - server will be started once synced
2018-10-23 20:02:55 [Pool]	[bitcoin] (Thread 1) Downloaded NaN% of blockchain from 2 peers
events.js:183

import Client from 'bitcoin-core'
let client = new Client( { username: 'xxx', password: 'yyy', port: 8332})
client.getBlockchainInformation().then( res => console.log("res: ", res))

W20180915-09:18:15.768(2)? (STDERR) Unhandled rejection RpcError: 404 Not Found
W20180915-09:18:15.768(2)? (STDERR)     at Client.rest (/home/r2d2/vue/txxx/node_modules/bitcoin-core/dist/src/parser.js:117:13)
W20180915-09:18:15.769(2)? (STDERR)     at apply (/home/r2d2/vue/txxx/node_modules/lodash/lodash.js:475:27)
W20180915-09:18:15.769(2)? (STDERR)     at Client.wrapper (/home/r2d2/vue/txxx/node_modules/lodash/lodash.js:5337:16)
W20180915-09:18:15.769(2)? (STDERR)     at Request.self.callback (/home/r2d2/vue/txxx/node_modules/request/request.js:185:22)
W20180915-09:18:15.769(2)? (STDERR)     at emitTwo (events.js:131:20)
W20180915-09:18:15.769(2)? (STDERR)     at Request.emit (events.js:214:7)
W20180915-09:18:15.769(2)? (STDERR)     at Request.<anonymous> (/home/r2d2/vue/txxx/node_modules/request/request.js:1161:10)
W20180915-09:18:15.769(2)? (STDERR)     at emitOne (events.js:116:13)
W20180915-09:18:15.769(2)? (STDERR)     at Request.emit (events.js:211:7)
W20180915-09:18:15.770(2)? (STDERR)     at IncomingMessage.<anonymous> (/home/r2d2/vue/txxx/node_modules/request/request.js:1083:12)
W20180915-09:18:15.770(2)? (STDERR)     at Object.onceWrapper (events.js:313:30)
W20180915-09:18:15.770(2)? (STDERR)     at emitNone (events.js:111:20)
W20180915-09:18:15.770(2)? (STDERR)     at IncomingMessage.emit (events.js:208:7)
W20180915-09:18:15.770(2)? (STDERR)     at endReadableNT (_stream_readable.js:1064:12)
W20180915-09:18:15.770(2)? (STDERR)     at _combinedTickCallback (internal/process/next_tick.js:138:11)
W20180915-09:18:15.770(2)? (STDERR) From previous event:
W20180915-09:18:15.770(2)? (STDERR)     at Client.getBlockchainInformation (/home/r2d2/vue/txxx/node_modules/bitcoin-core/dist/src/index.js:238:69)
W20180915-09:18:15.770(2)? (STDERR)     at Promise.asyncApply (server/jobs.js:24:10)
W20180915-09:18:15.771(2)? (STDERR)     at /home/r2d2/.meteor/packages/promise/.0.11.1.1vczms8.mxi5++os+web.browser+web.browser.legacy+web.cordova/npm/node_modules/meteor-promise/fiber_pool.js:43:40

##
## bitcoin.conf configuration file. Lines beginning with # are comments.
##

# Network-related settings:

# Run on the test network instead of the real bitcoin network.
#testnet=0

# Run a regression test network
#regtest=1
# when we don't need it to run as a daemon.
daemon=1

# Connect via a SOCKS5 proxy
#proxy=127.0.0.1:9050

# Bind to given address and always listen on it. Use [host]:port notation for IPv6
#bind=<addr>

# Bind to given address and whitelist peers connecting to it. Use [host]:port notation for IPv6
#whitebind=<addr>

txindex = 1

# Use as many addnode= settings as you like to connect to specific peers
#addnode=69.164.218.197
#addnode=10.0.0.2:8333

# Alternatively use as many connect= settings as you like to connect ONLY to specific peers
#connect=69.164.218.197
#connect=10.0.0.1:8333

# Listening mode, enabled by default except when 'connect' is being used
#listen=1

# Maximum number of inbound+outbound connections.
#maxconnections=

#
# JSON-RPC options (for controlling a running Bitcoin/bitcoind process)
#

# server=1 tells Bitcoin-Qt and bitcoind to accept JSON-RPC commands
server=1

# Bind to given address to listen for JSON-RPC connections. Use [host]:port notation for IPv6.
# This option can be specified multiple times (default: bind to all interfaces)
#rpcbind=<addr>
rpcbind=127.0.0.1

# If no rpcpassword is set, rpc cookie auth is sought. The default `-rpccookiefile` name
# is .cookie and found in the `-datadir` being used for bitcoind. This option is typically used
# when the server and client are run as the same user.
#
# If not, you must set rpcuser and rpcpassword to secure the JSON-RPC api. The first
# method(DEPRECATED) is to set this pair for the server and client:
rpcuser=xxx
rpcpassword=yyy
#
# The second method `rpcauth` can be added to server startup argument. It is set at intialization time
# using the output from the script in share/rpcuser/rpcuser.py after providing a username:
#
# ./share/rpcuser/rpcuser.py alice
# String to be appended to bitcoin.conf:
# rpcauth=alice:f7efda5c189b999524f151318c0c86$d5b51b3beffbc02b724e5d095828e0bc8b2456e9ac8757ae3211a5d9b16a22ae
# Your password:
# DONT_USE_THIS_YOU_WILL_GET_ROBBED_8ak1gI25KFTvjovL3gAM967mies3E=
#
# On client-side, you add the normal user/password pair to send commands:
#rpcuser=alice
#rpcpassword=DONT_USE_THIS_YOU_WILL_GET_ROBBED_8ak1gI25KFTvjovL3gAM967mies3E=
#
# You can even add multiple entries of these to the server conf file, and client can use any of them:
# rpcauth=bob:b2dd077cb54591a2f3139e69a897ac$4e71f08d48b4347cf8eff3815c0e25ae2e9a4340474079f55705f40574f4ec99

# How many seconds bitcoin will wait for a complete RPC HTTP request.
# after the HTTP connection is established. 
#rpcclienttimeout=30

# By default, only RPC connections from localhost are allowed.
# Specify as many rpcallowip= settings as you like to allow connections from other hosts,
# either as a single IPv4/IPv6 or with a subnet specification.

# NOTE: opening up the RPC port to hosts outside your local trusted network is NOT RECOMMENDED,
# because the rpcpassword is transmitted over the network unencrypted.

# server=1 tells Bitcoin-Qt to accept JSON-RPC commands.
# it is also read by bitcoind to determine if RPC should be enabled 
#rpcallowip=10.1.1.34/255.255.255.0
#rpcallowip=1.2.3.4/24
#rpcallowip=2001:db8:85a3:0:0:8a2e:370:7334/96
rpcallowip=127.0.0.1

# as seen in https://bitcoin.stackexchange.com/questions/71800/bitcoin-rpc-econnrefused:
port=8444

# Listen for RPC connections on this TCP port:
rpcport=8332

# You can use Bitcoin or bitcoind to send commands to Bitcoin/bitcoind
# running on another host using this option:
#rpcconnect=127.0.0.1

# Create transactions that have enough fees so they are likely to begin confirmation within n blocks (default: 6).
# This setting is over-ridden by the -paytxfee option.
#txconfirmtarget=n

# Miscellaneous options

# Pre-generate this many public/private key pairs, so wallet backups will be valid for
# both prior transactions and several dozen future transactions.
#keypool=100

# Pay an optional transaction fee every time you send bitcoins.  Transactions with fees
# are more likely than free transactions to be included in generated blocks, so may
# be validated sooner.
#paytxfee=0.00

# Enable pruning to reduce storage requirements by deleting old blocks. 
# This mode is incompatible with -txindex and -rescan.
# 0 = default (no pruning).
# 1 = allows manual pruning via RPC.
# >=550 = target to stay under in MiB. 
#prune=550

# User interface options

# Start Bitcoin minimized
#min=1

# Minimize to the system tray
#minimizetotray=1

# receiving raw transactions.
zmqpubrawblock=tcp://127.0.0.1:28332
zmqpubrawtx=tcp://127.0.0.1:28333