path: root/doc/man/bitcoind.1

.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.46.5.
.TH BITCOIND "1" "September 2016" "bitcoind v0.13.0.0" "User Commands"
.SH NAME
bitcoind \- manual page for bitcoind v0.13.0.0
.SH DESCRIPTION
Bitcoin Core Daemon version v0.13.0.0
.SS "Usage:"
.TP
bitcoind [options]
Start Bitcoin Core Daemon
.SH OPTIONS
.HP
\-?
.IP
Print this help message and exit
.HP
\fB\-version\fR
.IP
Print version and exit
.HP
\fB\-alertnotify=\fR<cmd>
.IP
Execute command when a relevant alert is received or we see a really
long fork (%s in cmd is replaced by message)
.HP
\fB\-blocknotify=\fR<cmd>
.IP
Execute command when the best block changes (%s in cmd is replaced by
block hash)
.HP
\fB\-checkblocks=\fR<n>
.IP
How many blocks to check at startup (default: 288, 0 = all)
.HP
\fB\-checklevel=\fR<n>
.IP
How thorough the block verification of \fB\-checkblocks\fR is (0\-4, default: 3)
.HP
\fB\-conf=\fR<file>
.IP
Specify configuration file (default: bitcoin.conf)
.HP
\fB\-daemon\fR
.IP
Run in the background as a daemon and accept commands
.HP
\fB\-datadir=\fR<dir>
.IP
Specify data directory
.HP
\fB\-dbcache=\fR<n>
.IP
Set database cache size in megabytes (4 to 16384, default: 300)
.HP
\fB\-loadblock=\fR<file>
.IP
Imports blocks from external blk000??.dat file on startup
.HP
\fB\-maxorphantx=\fR<n>
.IP
Keep at most <n> unconnectable transactions in memory (default: 100)
.HP
\fB\-maxmempool=\fR<n>
.IP
Keep the transaction memory pool below <n> megabytes (default: 300)
.HP
\fB\-mempoolexpiry=\fR<n>
.IP
Do not keep transactions in the mempool longer than <n> hours (default:
72)
.HP
\fB\-par=\fR<n>
.IP
Set the number of script verification threads (\fB\-4\fR to 16, 0 = auto, <0 =
leave that many cores free, default: 0)
.HP
\fB\-pid=\fR<file>
.IP
Specify pid file (default: bitcoind.pid)
.HP
\fB\-prune=\fR<n>
.IP
Reduce storage requirements by pruning (deleting) old blocks. This mode
is incompatible with \fB\-txindex\fR and \fB\-rescan\fR. Warning: Reverting
this setting requires re\-downloading the entire blockchain.
(default: 0 = disable pruning blocks, >550 = target size in MiB
to use for block files)
.HP
\fB\-reindex\-chainstate\fR
.IP
Rebuild chain state from the currently indexed blocks
.HP
\fB\-reindex\fR
.IP
Rebuild chain state and block index from the blk*.dat files on disk
.HP
\fB\-sysperms\fR
.IP
Create new files with system default permissions, instead of umask 077
(only effective with disabled wallet functionality)
.HP
\fB\-txindex\fR
.IP
Maintain a full transaction index, used by the getrawtransaction rpc
call (default: 0)
.PP
Connection options:
.HP
\fB\-addnode=\fR<ip>
.IP
Add a node to connect to and attempt to keep the connection open
.HP
\fB\-banscore=\fR<n>
.IP
Threshold for disconnecting misbehaving peers (default: 100)
.HP
\fB\-bantime=\fR<n>
.IP
Number of seconds to keep misbehaving peers from reconnecting (default:
86400)
.HP
\fB\-bind=\fR<addr>
.IP
Bind to given address and always listen on it. Use [host]:port notation
for IPv6
.HP
\fB\-connect=\fR<ip>
.IP
Connect only to the specified node(s)
.HP
\fB\-discover\fR
.IP
Discover own IP addresses (default: 1 when listening and no \fB\-externalip\fR
or \fB\-proxy\fR)
.HP
\fB\-dns\fR
.IP
Allow DNS lookups for \fB\-addnode\fR, \fB\-seednode\fR and \fB\-connect\fR (default: 1)
.HP
\fB\-dnsseed\fR
.IP
Query for peer addresses via DNS lookup, if low on addresses (default: 1
unless \fB\-connect\fR)
.HP
\fB\-externalip=\fR<ip>
.IP
Specify your own public address
.HP
\fB\-forcednsseed\fR
.IP
Always query for peer addresses via DNS lookup (default: 0)
.HP
\fB\-listen\fR
.IP
Accept connections from outside (default: 1 if no \fB\-proxy\fR or \fB\-connect\fR)
.HP
\fB\-listenonion\fR
.IP
Automatically create Tor hidden service (default: 1)
.HP
\fB\-maxconnections=\fR<n>
.IP
Maintain at most <n> connections to peers (default: 125)
.HP
\fB\-maxreceivebuffer=\fR<n>
.IP
Maximum per\-connection receive buffer, <n>*1000 bytes (default: 5000)
.HP
\fB\-maxsendbuffer=\fR<n>
.IP
Maximum per\-connection send buffer, <n>*1000 bytes (default: 1000)
.HP
\fB\-maxtimeadjustment\fR
.IP
Maximum allowed median peer time offset adjustment. Local perspective of
time may be influenced by peers forward or backward by this
amount. (default: 4200 seconds)
.HP
\fB\-onion=\fR<ip:port>
.IP
Use separate SOCKS5 proxy to reach peers via Tor hidden services
(default: \fB\-proxy\fR)
.HP
\fB\-onlynet=\fR<net>
.IP
Only connect to nodes in network <net> (ipv4, ipv6 or onion)
.HP
\fB\-permitbaremultisig\fR
.IP
Relay non\-P2SH multisig (default: 1)
.HP
\fB\-peerbloomfilters\fR
.IP
Support filtering of blocks and transaction with bloom filters (default:
1)
.HP
\fB\-port=\fR<port>
.IP
Listen for connections on <port> (default: 8333 or testnet: 18333)
.HP
\fB\-proxy=\fR<ip:port>
.IP
Connect through SOCKS5 proxy
.HP
\fB\-proxyrandomize\fR
.IP
Randomize credentials for every proxy connection. This enables Tor
stream isolation (default: 1)
.HP
\fB\-seednode=\fR<ip>
.IP
Connect to a node to retrieve peer addresses, and disconnect
.HP
\fB\-timeout=\fR<n>
.IP
Specify connection timeout in milliseconds (minimum: 1, default: 5000)
.HP
\fB\-torcontrol=\fR<ip>:<port>
.IP
Tor control port to use if onion listening enabled (default:
127.0.0.1:9051)
.HP
\fB\-torpassword=\fR<pass>
.IP
Tor control port password (default: empty)
.HP
\fB\-whitebind=\fR<addr>
.IP
Bind to given address and whitelist peers connecting to it. Use
[host]:port notation for IPv6
.HP
\fB\-whitelist=\fR<netmask>
.IP
Whitelist peers connecting from the given netmask or IP address. Can be
specified multiple times. Whitelisted peers cannot be DoS banned
and their transactions are always relayed, even if they are
already in the mempool, useful e.g. for a gateway
.HP
\fB\-whitelistrelay\fR
.IP
Accept relayed transactions received from whitelisted peers even when
not relaying transactions (default: 1)
.HP
\fB\-whitelistforcerelay\fR
.IP
Force relay of transactions from whitelisted peers even they violate
local relay policy (default: 1)
.HP
\fB\-maxuploadtarget=\fR<n>
.IP
Tries to keep outbound traffic under the given target (in MiB per 24h),
0 = no limit (default: 0)
.PP
Wallet options:
.HP
\fB\-disablewallet\fR
.IP
Do not load the wallet and disable wallet RPC calls
.HP
\fB\-keypool=\fR<n>
.IP
Set key pool size to <n> (default: 100)
.HP
\fB\-fallbackfee=\fR<amt>
.IP
A fee rate (in BTC/kB) that will be used when fee estimation has
insufficient data (default: 0.0002)
.HP
\fB\-mintxfee=\fR<amt>
.IP
Fees (in BTC/kB) smaller than this are considered zero fee for
transaction creation (default: 0.00001)
.HP
\fB\-paytxfee=\fR<amt>
.IP
Fee (in BTC/kB) to add to transactions you send (default: 0.00)
.HP
\fB\-rescan\fR
.IP
Rescan the block chain for missing wallet transactions on startup
.HP
\fB\-salvagewallet\fR
.IP
Attempt to recover private keys from a corrupt wallet on startup
.HP
\fB\-spendzeroconfchange\fR
.IP
Spend unconfirmed change when sending transactions (default: 1)
.HP
\fB\-txconfirmtarget=\fR<n>
.IP
If paytxfee is not set, include enough fee so transactions begin
confirmation on average within n blocks (default: 2)
.HP
\fB\-usehd\fR
.IP
Use hierarchical deterministic key generation (HD) after BIP32. Only has
effect during wallet creation/first start (default: 1)
.HP
\fB\-upgradewallet\fR
.IP
Upgrade wallet to latest format on startup
.HP
\fB\-wallet=\fR<file>
.IP
Specify wallet file (within data directory) (default: wallet.dat)
.HP
\fB\-walletbroadcast\fR
.IP
Make the wallet broadcast transactions (default: 1)
.HP
\fB\-walletnotify=\fR<cmd>
.IP
Execute command when a wallet transaction changes (%s in cmd is replaced
by TxID)
.HP
\fB\-zapwallettxes=\fR<mode>
.IP
Delete all wallet transactions and only recover those parts of the
blockchain through \fB\-rescan\fR on startup (1 = keep tx meta data e.g.
account owner and payment request information, 2 = drop tx meta
data)
.PP
ZeroMQ notification options:
.HP
\fB\-zmqpubhashblock=\fR<address>
.IP
Enable publish hash block in <address>
.HP
\fB\-zmqpubhashtx=\fR<address>
.IP
Enable publish hash transaction in <address>
.HP
\fB\-zmqpubrawblock=\fR<address>
.IP
Enable publish raw block in <address>
.HP
\fB\-zmqpubrawtx=\fR<address>
.IP
Enable publish raw transaction in <address>
.PP
Debugging/Testing options:
.HP
\fB\-uacomment=\fR<cmt>
.IP
Append comment to the user agent string
.HP
\fB\-debug=\fR<category>
.IP
Output debugging information (default: 0, supplying <category> is
optional). If <category> is not supplied or if <category> = 1,
output all debugging information.<category> can be: addrman,
alert, bench, coindb, db, http, libevent, lock, mempool,
mempoolrej, net, proxy, prune, rand, reindex, rpc, selectcoins,
tor, zmq.
.HP
\fB\-help\-debug\fR
.IP
Show all debugging options (usage: \fB\-\-help\fR \fB\-help\-debug\fR)
.HP
\fB\-logips\fR
.IP
Include IP addresses in debug output (default: 0)
.HP
\fB\-logtimestamps\fR
.IP
Prepend debug output with timestamp (default: 1)
.HP
\fB\-minrelaytxfee=\fR<amt>
.IP
Fees (in BTC/kB) smaller than this are considered zero fee for relaying,
mining and transaction creation (default: 0.00001)
.HP
\fB\-maxtxfee=\fR<amt>
.IP
Maximum total fees (in BTC) to use in a single wallet transaction or raw
transaction; setting this too low may abort large transactions
(default: 0.10)
.HP
\fB\-printtoconsole\fR
.IP
Send trace/debug info to console instead of debug.log file
.HP
\fB\-shrinkdebugfile\fR
.IP
Shrink debug.log file on client startup (default: 1 when no \fB\-debug\fR)
.PP
Chain selection options:
.HP
\fB\-testnet\fR
.IP
Use the test chain
.PP
Node relay options:
.HP
\fB\-bytespersigop\fR
.IP
Equivalent bytes per sigop in transactions for relay and mining
(default: 20)
.HP
\fB\-datacarrier\fR
.IP
Relay and mine data carrier transactions (default: 1)
.HP
\fB\-datacarriersize\fR
.IP
Maximum size of data in data carrier transactions we relay and mine
(default: 83)
.HP
\fB\-mempoolreplacement\fR
.IP
Enable transaction replacement in the memory pool (default: 1)
.PP
Block creation options:
.HP
\fB\-blockmaxweight=\fR<n>
.IP
Set maximum BIP141 block weight (default: 3000000)
.HP
\fB\-blockmaxsize=\fR<n>
.IP
Set maximum block size in bytes (default: 750000)
.HP
\fB\-blockprioritysize=\fR<n>
.IP
Set maximum size of high\-priority/low\-fee transactions in bytes
(default: 0)
.PP
RPC server options:
.HP
\fB\-server\fR
.IP
Accept command line and JSON\-RPC commands
.HP
\fB\-rest\fR
.IP
Accept public REST requests (default: 0)
.HP
\fB\-rpcbind=\fR<addr>
.IP
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)
.HP
\fB\-rpccookiefile=\fR<loc>
.IP
Location of the auth cookie (default: data dir)
.HP
\fB\-rpcuser=\fR<user>
.IP
Username for JSON\-RPC connections
.HP
\fB\-rpcpassword=\fR<pw>
.IP
Password for JSON\-RPC connections
.HP
\fB\-rpcauth=\fR<userpw>
.IP
Username and hashed password for JSON\-RPC connections. The field
<userpw> comes in the format: <USERNAME>:<SALT>$<HASH>. A
canonical python script is included in share/rpcuser. This option
can be specified multiple times
.HP
\fB\-rpcport=\fR<port>
.IP
Listen for JSON\-RPC connections on <port> (default: 8332 or testnet:
18332)
.HP
\fB\-rpcallowip=\fR<ip>
.IP
Allow JSON\-RPC connections from specified source. Valid for <ip> are a
single IP (e.g. 1.2.3.4), a network/netmask (e.g.
1.2.3.4/255.255.255.0) or a network/CIDR (e.g. 1.2.3.4/24). This
option can be specified multiple times
.HP
\fB\-rpcthreads=\fR<n>
.IP
Set the number of threads to service RPC calls (default: 4)
.SH COPYRIGHT
Copyright (C) 2009-2016 The Bitcoin Core developers

Please contribute if you find Bitcoin Core useful. Visit
<https://bitcoincore.org> for further information about the software.
The source code is available from <https://github.com/bitcoin/bitcoin>.

This is experimental software.
Distributed under the MIT software license, see the accompanying file COPYING
or <http://www.opensource.org/licenses/mit-license.php>.

This product includes software developed by the OpenSSL Project for use in the
OpenSSL Toolkit <https://www.openssl.org/> and cryptographic software written
by Eric Young and UPnP software written by Thomas Bernard.