diff --git a/src/bitcoin-cli.cpp b/src/bitcoin-cli.cpp
index f7e15ba8c..9ad442ff9 100644
--- a/src/bitcoin-cli.cpp
+++ b/src/bitcoin-cli.cpp
@@ -19,6 +19,7 @@
 
 #include <univalue.h>
 
+static const char DEFAULT_RPCCONNECT[] = "127.0.0.1";
 static const int DEFAULT_HTTP_CLIENT_TIMEOUT=900;
 static const int CONTINUE_EXECUTION=-1;
 
@@ -27,10 +28,10 @@ std::string HelpMessageCli()
     std::string strUsage;
     strUsage += HelpMessageGroup(_("Options:"));
     strUsage += HelpMessageOpt("-?", _("This help message"));
-    strUsage += HelpMessageOpt("-conf=<file>", strprintf(_("Specify configuration file (default: %s)"), "zcash.conf"));
+    strUsage += HelpMessageOpt("-conf=<file>", strprintf(_("Specify configuration file (default: %s)"), BITCOIN_CONF_FILENAME));
     strUsage += HelpMessageOpt("-datadir=<dir>", _("Specify data directory"));
     AppendParamsHelpMessages(strUsage);
-    strUsage += HelpMessageOpt("-rpcconnect=<ip>", strprintf(_("Send commands to node running on <ip> (default: %s)"), "127.0.0.1"));
+    strUsage += HelpMessageOpt("-rpcconnect=<ip>", strprintf(_("Send commands to node running on <ip> (default: %s)"), DEFAULT_RPCCONNECT));
     strUsage += HelpMessageOpt("-rpcport=<port>", strprintf(_("Connect to JSON-RPC on <port> (default: %u or testnet: %u)"), 8232, 18232));
     strUsage += HelpMessageOpt("-rpcwait", _("Wait for RPC server to start"));
     strUsage += HelpMessageOpt("-rpcuser=<user>", _("Username for JSON-RPC connections"));
@@ -187,7 +188,7 @@ static void http_error_cb(enum evhttp_request_error err, void *ctx)
 
 UniValue CallRPC(const std::string& strMethod, const UniValue& params)
 {
-    std::string host = GetArg("-rpcconnect", "127.0.0.1");
+    std::string host = GetArg("-rpcconnect", DEFAULT_RPCCONNECT);
     int port = GetArg("-rpcport", BaseParams().RPCPort());
 
     // Obtain event base
diff --git a/src/init.cpp b/src/init.cpp
index 74580652c..98627ba93 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -28,6 +28,7 @@
 #include "net.h"
 #include "rpc/server.h"
 #include "rpc/register.h"
+#include "script/sigcache.h"
 #include "script/standard.h"
 #include "script/sigcache.h"
 #include "scheduler.h"
@@ -80,6 +81,10 @@ ZCJoinSplit* pzcashParams = NULL;
 CWallet* pwalletMain = NULL;
 #endif
 bool fFeeEstimatesInitialized = false;
+static const bool DEFAULT_PROXYRANDOMIZE = true;
+static const bool DEFAULT_REST_ENABLE = false;
+static const bool DEFAULT_SAFEMODE = true;
+static const bool DEFAULT_STOPAFTERBLOCKIMPORT = false;
 
 #if ENABLE_ZMQ
 static CZMQNotificationInterface* pzmqNotificationInterface = NULL;
@@ -322,7 +327,7 @@ void OnRPCPreCommand(const CRPCCommand& cmd)
 {
     // Observe safe mode
     string strWarning = GetWarnings("rpc");
-    if (strWarning != "" && !GetBoolArg("-disablesafemode", false) &&
+    if (strWarning != "" && !GetBoolArg("-disablesafemode", !DEFAULT_SAFEMODE) &&
         !cmd.okSafeMode)
         throw JSONRPCError(RPC_FORBIDDEN_BY_SAFE_MODE, string("Safe mode: ") + strWarning);
 }
@@ -341,7 +346,7 @@ std::string HelpMessage(HelpMessageMode mode)
     strUsage += HelpMessageOpt("-blocknotify=<cmd>", _("Execute command when the best block changes (%s in cmd is replaced by block hash)"));
     strUsage += HelpMessageOpt("-checkblocks=<n>", strprintf(_("How many blocks to check at startup (default: %u, 0 = all)"), DEFAULT_CHECKBLOCKS));
     strUsage += HelpMessageOpt("-checklevel=<n>", strprintf(_("How thorough the block verification of -checkblocks is (0-4, default: %u)"), DEFAULT_CHECKLEVEL));
-    strUsage += HelpMessageOpt("-conf=<file>", strprintf(_("Specify configuration file (default: %s)"), "zcash.conf"));
+    strUsage += HelpMessageOpt("-conf=<file>", strprintf(_("Specify configuration file (default: %s)"), BITCOIN_CONF_FILENAME));
     if (mode == HMM_BITCOIND)
     {
 #if !defined(WIN32)
@@ -357,7 +362,7 @@ std::string HelpMessage(HelpMessageMode mode)
     strUsage += HelpMessageOpt("-par=<n>", strprintf(_("Set the number of script verification threads (%u to %d, 0 = auto, <0 = leave that many cores free, default: %d)"),
         -GetNumCores(), MAX_SCRIPTCHECK_THREADS, DEFAULT_SCRIPTCHECK_THREADS));
 #ifndef WIN32
-    strUsage += HelpMessageOpt("-pid=<file>", strprintf(_("Specify pid file (default: %s)"), "zcashd.pid"));
+    strUsage += HelpMessageOpt("-pid=<file>", strprintf(_("Specify pid file (default: %s)"), BITCOIN_PID_FILENAME));
 #endif
     strUsage += HelpMessageOpt("-prune=<n>", strprintf(_("Reduce storage requirements by pruning (deleting) old blocks. This mode disables wallet support and is incompatible with -txindex. "
             "Warning: Reverting this setting requires re-downloading the entire blockchain. "
@@ -366,35 +371,35 @@ std::string HelpMessage(HelpMessageMode mode)
 #if !defined(WIN32)
     strUsage += HelpMessageOpt("-sysperms", _("Create new files with system default permissions, instead of umask 077 (only effective with disabled wallet functionality)"));
 #endif
-    strUsage += HelpMessageOpt("-txindex", strprintf(_("Maintain a full transaction index, used by the getrawtransaction rpc call (default: %u)"), 0));
+    strUsage += HelpMessageOpt("-txindex", strprintf(_("Maintain a full transaction index, used by the getrawtransaction rpc call (default: %u)"), DEFAULT_TXINDEX));
 
     strUsage += HelpMessageGroup(_("Connection options:"));
     strUsage += HelpMessageOpt("-addnode=<ip>", _("Add a node to connect to and attempt to keep the connection open"));
-    strUsage += HelpMessageOpt("-banscore=<n>", strprintf(_("Threshold for disconnecting misbehaving peers (default: %u)"), 100));
-    strUsage += HelpMessageOpt("-bantime=<n>", strprintf(_("Number of seconds to keep misbehaving peers from reconnecting (default: %u)"), 86400));
+    strUsage += HelpMessageOpt("-banscore=<n>", strprintf(_("Threshold for disconnecting misbehaving peers (default: %u)"), DEFAULT_BANSCORE_THRESHOLD));
+    strUsage += HelpMessageOpt("-bantime=<n>", strprintf(_("Number of seconds to keep misbehaving peers from reconnecting (default: %u)"), DEFAULT_MISBEHAVING_BANTIME));
     strUsage += HelpMessageOpt("-bind=<addr>", _("Bind to given address and always listen on it. Use [host]:port notation for IPv6"));
     strUsage += HelpMessageOpt("-connect=<ip>", _("Connect only to the specified node(s)"));
     strUsage += HelpMessageOpt("-discover", _("Discover own IP addresses (default: 1 when listening and no -externalip or -proxy)"));
-    strUsage += HelpMessageOpt("-dns", _("Allow DNS lookups for -addnode, -seednode and -connect") + " " + _("(default: 1)"));
+    strUsage += HelpMessageOpt("-dns", strprintf(_("Allow DNS lookups for -addnode, -seednode and -connect (default: %u)"), fNameLookup));
     strUsage += HelpMessageOpt("-dnsseed", _("Query for peer addresses via DNS lookup, if low on addresses (default: 1 unless -connect)"));
     strUsage += HelpMessageOpt("-externalip=<ip>", _("Specify your own public address"));
-    strUsage += HelpMessageOpt("-forcednsseed", strprintf(_("Always query for peer addresses via DNS lookup (default: %u)"), 0));
+    strUsage += HelpMessageOpt("-forcednsseed", strprintf(_("Always query for peer addresses via DNS lookup (default: %u)"), DEFAULT_FORCEDNSSEED));
     strUsage += HelpMessageOpt("-listen", _("Accept connections from outside (default: 1 if no -proxy or -connect)"));
     strUsage += HelpMessageOpt("-listenonion", strprintf(_("Automatically create Tor hidden service (default: %d)"), DEFAULT_LISTEN_ONION));
     strUsage += HelpMessageOpt("-maxconnections=<n>", strprintf(_("Maintain at most <n> connections to peers (default: %u)"), DEFAULT_MAX_PEER_CONNECTIONS));
-    strUsage += HelpMessageOpt("-maxreceivebuffer=<n>", strprintf(_("Maximum per-connection receive buffer, <n>*1000 bytes (default: %u)"), 5000));
-    strUsage += HelpMessageOpt("-maxsendbuffer=<n>", strprintf(_("Maximum per-connection send buffer, <n>*1000 bytes (default: %u)"), 1000));
+    strUsage += HelpMessageOpt("-maxreceivebuffer=<n>", strprintf(_("Maximum per-connection receive buffer, <n>*1000 bytes (default: %u)"), DEFAULT_MAXRECEIVEBUFFER));
+    strUsage += HelpMessageOpt("-maxsendbuffer=<n>", strprintf(_("Maximum per-connection send buffer, <n>*1000 bytes (default: %u)"), DEFAULT_MAXSENDBUFFER));
     strUsage += HelpMessageOpt("-mempoolevictionmemoryminutes=<n>", strprintf(_("The number of minutes before allowing rejected transactions to re-enter the mempool. (default: %u)"), DEFAULT_MEMPOOL_EVICTION_MEMORY_MINUTES));
     strUsage += HelpMessageOpt("-mempooltxcostlimit=<n>",strprintf(_("An upper bound on the maximum size in bytes of all transactions in the mempool. (default: %s)"), DEFAULT_MEMPOOL_TOTAL_COST_LIMIT));
     strUsage += HelpMessageOpt("-onion=<ip:port>", strprintf(_("Use separate SOCKS5 proxy to reach peers via Tor hidden services (default: %s)"), "-proxy"));
     strUsage += HelpMessageOpt("-onlynet=<net>", _("Only connect to nodes in network <net> (ipv4, ipv6 or onion)"));
-    strUsage += HelpMessageOpt("-permitbaremultisig", strprintf(_("Relay non-P2SH multisig (default: %u)"), 1));
+    strUsage += HelpMessageOpt("-permitbaremultisig", strprintf(_("Relay non-P2SH multisig (default: %u)"), fIsBareMultisigStd));
     strUsage += HelpMessageOpt("-peerbloomfilters", strprintf(_("Support filtering of blocks and transaction with Bloom filters (default: %u)"), 1));
     if (showDebug)
         strUsage += HelpMessageOpt("-enforcenodebloom", strprintf("Enforce minimum protocol version to limit use of Bloom filters (default: %u)", 0));
-    strUsage += HelpMessageOpt("-port=<port>", strprintf(_("Listen for connections on <port> (default: %u or testnet: %u)"), 8233, 18233));
+    strUsage += HelpMessageOpt("-port=<port>", strprintf(_("Listen for connections on <port> (default: %u or testnet: %u)"), Params(CBaseChainParams::MAIN).GetDefaultPort(), Params(CBaseChainParams::TESTNET).GetDefaultPort()));
     strUsage += HelpMessageOpt("-proxy=<ip:port>", _("Connect through SOCKS5 proxy"));
-    strUsage += HelpMessageOpt("-proxyrandomize", strprintf(_("Randomize credentials for every proxy connection. This enables Tor stream isolation (default: %u)"), 1));
+    strUsage += HelpMessageOpt("-proxyrandomize", strprintf(_("Randomize credentials for every proxy connection. This enables Tor stream isolation (default: %u)"), DEFAULT_PROXYRANDOMIZE));
     strUsage += HelpMessageOpt("-seednode=<ip>", _("Connect to a node to retrieve peer addresses, and disconnect"));
     strUsage += HelpMessageOpt("-timeout=<n>", strprintf(_("Specify connection timeout in milliseconds (minimum: 1, default: %d)"), DEFAULT_CONNECT_TIMEOUT));
     strUsage += HelpMessageOpt("-torcontrol=<ip>:<port>", strprintf(_("Tor control port to use if onion listening enabled (default: %s)"), DEFAULT_TOR_CONTROL));
@@ -406,7 +411,7 @@ std::string HelpMessage(HelpMessageMode mode)
 #ifdef ENABLE_WALLET
     strUsage += HelpMessageGroup(_("Wallet options:"));
     strUsage += HelpMessageOpt("-disablewallet", _("Do not load the wallet and disable wallet RPC calls"));
-    strUsage += HelpMessageOpt("-keypool=<n>", strprintf(_("Set key pool size to <n> (default: %u)"), 100));
+    strUsage += HelpMessageOpt("-keypool=<n>", strprintf(_("Set key pool size to <n> (default: %u)"), DEFAULT_KEYPOOL_SIZE));
     strUsage += HelpMessageOpt("-migration", _("Enable the Sprout to Sapling migration"));
     strUsage += HelpMessageOpt("-migrationdestaddress=<zaddr>", _("Set the Sapling migration address"));
     if (showDebug)
@@ -416,15 +421,15 @@ std::string HelpMessage(HelpMessageMode mode)
         CURRENCY_UNIT, FormatMoney(payTxFee.GetFeePerK())));
     strUsage += HelpMessageOpt("-rescan", _("Rescan the block chain for missing wallet transactions") + " " + _("on startup"));
     strUsage += HelpMessageOpt("-salvagewallet", _("Attempt to recover private keys from a corrupt wallet.dat") + " " + _("on startup"));
-    strUsage += HelpMessageOpt("-sendfreetransactions", strprintf(_("Send transactions as zero-fee transactions if possible (default: %u)"), 0));
-    strUsage += HelpMessageOpt("-spendzeroconfchange", strprintf(_("Spend unconfirmed change when sending transactions (default: %u)"), 1));
+    strUsage += HelpMessageOpt("-sendfreetransactions", strprintf(_("Send transactions as zero-fee transactions if possible (default: %u)"), fSendFreeTransactions));
+    strUsage += HelpMessageOpt("-spendzeroconfchange", strprintf(_("Spend unconfirmed change when sending transactions (default: %u)"), bSpendZeroConfChange));
     strUsage += HelpMessageOpt("-txconfirmtarget=<n>", strprintf(_("If paytxfee is not set, include enough fee so transactions begin confirmation on average within n blocks (default: %u)"), DEFAULT_TX_CONFIRM_TARGET));
     strUsage += HelpMessageOpt("-txexpirydelta", strprintf(_("Set the number of blocks after which a transaction that has not been mined will become invalid (min: %u, default: %u (pre-Blossom) or %u (post-Blossom))"), TX_EXPIRING_SOON_THRESHOLD + 1, DEFAULT_PRE_BLOSSOM_TX_EXPIRY_DELTA, DEFAULT_POST_BLOSSOM_TX_EXPIRY_DELTA));
     strUsage += HelpMessageOpt("-maxtxfee=<amt>", strprintf(_("Maximum total fees (in %s) to use in a single wallet transaction; setting this too low may abort large transactions (default: %s)"),
         CURRENCY_UNIT, FormatMoney(maxTxFee)));
     strUsage += HelpMessageOpt("-upgradewallet", _("Upgrade wallet to latest format") + " " + _("on startup"));
     strUsage += HelpMessageOpt("-wallet=<file>", _("Specify wallet file (within data directory)") + " " + strprintf(_("(default: %s)"), "wallet.dat"));
-    strUsage += HelpMessageOpt("-walletbroadcast", _("Make the wallet broadcast transactions") + " " + strprintf(_("(default: %u)"), true));
+    strUsage += HelpMessageOpt("-walletbroadcast", _("Make the wallet broadcast transactions") + " " + strprintf(_("(default: %u)"), DEFAULT_WALLETBROADCAST));
     strUsage += HelpMessageOpt("-walletnotify=<cmd>", _("Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)"));
     strUsage += HelpMessageOpt("-zapwallettxes=<mode>", _("Delete all wallet transactions and only recover those parts of the blockchain through -rescan on startup") +
         " " + _("(1 = keep tx meta data e.g. account owner and payment request information, 2 = drop tx meta data)"));
@@ -449,18 +454,18 @@ std::string HelpMessage(HelpMessageMode mode)
     strUsage += HelpMessageGroup(_("Debugging/Testing options:"));
     if (showDebug)
     {
-        strUsage += HelpMessageOpt("-checkpoints", strprintf("Disable expensive verification for known chain history (default: %u)", 1));
+        strUsage += HelpMessageOpt("-checkpoints", strprintf("Disable expensive verification for known chain history (default: %u)", fCheckpointsEnabled));
 #ifdef ENABLE_WALLET
         strUsage += HelpMessageOpt("-dblogsize=<n>", strprintf("Flush wallet database activity from memory to disk log every <n> megabytes (default: %u)", DEFAULT_WALLET_DBLOGSIZE));
 #endif
-        strUsage += HelpMessageOpt("-disablesafemode", strprintf("Disable safemode, override a real safe mode event (default: %u)", 0));
-        strUsage += HelpMessageOpt("-testsafemode", strprintf("Force safe mode (default: %u)", 0));
+        strUsage += HelpMessageOpt("-disablesafemode", strprintf("Disable safemode, override a real safe mode event (default: %u)", !DEFAULT_SAFEMODE));
+        strUsage += HelpMessageOpt("-testsafemode", strprintf("Force safe mode (default: %u)", DEFAULT_TESTSAFEMODE));
         strUsage += HelpMessageOpt("-dropmessagestest=<n>", "Randomly drop 1 of every <n> network messages");
         strUsage += HelpMessageOpt("-fuzzmessagestest=<n>", "Randomly fuzz 1 of every <n> network messages");
 #ifdef ENABLE_WALLET
-        strUsage += HelpMessageOpt("-flushwallet", strprintf("Run a thread to flush wallet periodically (default: %u)", 1));
+        strUsage += HelpMessageOpt("-flushwallet", strprintf("Run a thread to flush wallet periodically (default: %u)", DEFAULT_FLUSHWALLET));
 #endif
-        strUsage += HelpMessageOpt("-stopafterblockimport", strprintf("Stop running after importing blocks from disk (default: %u)", 0));
+        strUsage += HelpMessageOpt("-stopafterblockimport", strprintf("Stop running after importing blocks from disk (default: %u)", DEFAULT_STOPAFTERBLOCKIMPORT));
         strUsage += HelpMessageOpt("-nuparams=hexBranchId:activationHeight", "Use given activation height for specified network upgrade (regtest-only)");
     }
     string debugCategories = "addrman, alert, bench, coindb, db, estimatefee, http, libevent, lock, mempool, net, partitioncheck, pow, proxy, prune, "
@@ -469,12 +474,12 @@ std::string HelpMessage(HelpMessageMode mode)
         _("If <category> is not supplied or if <category> = 1, output all debugging information.") + " " + _("<category> can be:") + " " + debugCategories + ".");
     strUsage += HelpMessageOpt("-experimentalfeatures", _("Enable use of experimental features"));
     strUsage += HelpMessageOpt("-help-debug", _("Show all debugging options (usage: --help -help-debug)"));
-    strUsage += HelpMessageOpt("-logips", strprintf(_("Include IP addresses in debug output (default: %u)"), 0));
-    strUsage += HelpMessageOpt("-logtimestamps", strprintf(_("Prepend debug output with timestamp (default: %u)"), 1));
+    strUsage += HelpMessageOpt("-logips", strprintf(_("Include IP addresses in debug output (default: %u)"), fLogIPs));
+    strUsage += HelpMessageOpt("-logtimestamps", strprintf(_("Prepend debug output with timestamp (default: %u)"), fLogTimestamps));
     if (showDebug)
     {
-        strUsage += HelpMessageOpt("-limitfreerelay=<n>", strprintf("Continuously rate-limit free transactions to <n>*1000 bytes per minute (default: %u)", 15));
-        strUsage += HelpMessageOpt("-relaypriority", strprintf("Require high priority for relaying free or low-fee transactions (default: %u)", 0));
+        strUsage += HelpMessageOpt("-limitfreerelay=<n>", strprintf("Continuously rate-limit free transactions to <n>*1000 bytes per minute (default: %u)", DEFAULT_LIMITFREERELAY));
+        strUsage += HelpMessageOpt("-relaypriority", strprintf("Require high priority for relaying free or low-fee transactions (default: %u)", DEFAULT_RELAYPRIORITY));
         strUsage += HelpMessageOpt("-maxsigcachesize=<n>", strprintf("Limit size of signature cache to <n> MiB (default: %u)", DEFAULT_MAX_SIG_CACHE_SIZE));
         strUsage += HelpMessageOpt("-maxtipage=<n>", strprintf("Maximum tip age in seconds to consider node in initial block download (default: %u)", DEFAULT_MAX_TIP_AGE));
     }
@@ -483,19 +488,19 @@ std::string HelpMessage(HelpMessageMode mode)
     strUsage += HelpMessageOpt("-printtoconsole", _("Send trace/debug info to console instead of debug.log file"));
     if (showDebug)
     {
-        strUsage += HelpMessageOpt("-printpriority", strprintf("Log transaction priority and fee per kB when mining blocks (default: %u)", 0));
-        strUsage += HelpMessageOpt("-privdb", strprintf("Sets the DB_PRIVATE flag in the wallet db environment (default: %u)", 1));
+        strUsage += HelpMessageOpt("-printpriority", strprintf("Log transaction priority and fee per kB when mining blocks (default: %u)", DEFAULT_PRINTPRIORITY));
+        strUsage += HelpMessageOpt("-privdb", strprintf("Sets the DB_PRIVATE flag in the wallet db environment (default: %u)", DEFAULT_WALLET_PRIVDB));
     }
     // strUsage += HelpMessageOpt("-shrinkdebugfile", _("Shrink debug.log file on client startup (default: 1 when no -debug)"));
 
     AppendParamsHelpMessages(strUsage, showDebug);
 
     strUsage += HelpMessageGroup(_("Node relay options:"));
-    strUsage += HelpMessageOpt("-datacarrier", strprintf(_("Relay and mine data carrier transactions (default: %u)"), 1));
+    strUsage += HelpMessageOpt("-datacarrier", strprintf(_("Relay and mine data carrier transactions (default: %u)"), fAcceptDatacarrier));
     strUsage += HelpMessageOpt("-datacarriersize", strprintf(_("Maximum size of data in data carrier transactions we relay and mine (default: %u)"), MAX_OP_RETURN_RELAY));
 
     strUsage += HelpMessageGroup(_("Block creation options:"));
-    strUsage += HelpMessageOpt("-blockminsize=<n>", strprintf(_("Set minimum block size in bytes (default: %u)"), 0));
+    strUsage += HelpMessageOpt("-blockminsize=<n>", strprintf(_("Set minimum block size in bytes (default: %u)"), DEFAULT_BLOCK_MIN_SIZE));
     strUsage += HelpMessageOpt("-blockmaxsize=<n>", strprintf(_("Set maximum block size in bytes (default: %d)"), DEFAULT_BLOCK_MAX_SIZE));
     strUsage += HelpMessageOpt("-blockprioritysize=<n>", strprintf(_("Set maximum size of high-priority/low-fee transactions in bytes (default: %d)"), DEFAULT_BLOCK_PRIORITY_SIZE));
     if (GetBoolArg("-help-debug", false))
@@ -503,7 +508,7 @@ std::string HelpMessage(HelpMessageMode mode)
 
 #ifdef ENABLE_MINING
     strUsage += HelpMessageGroup(_("Mining options:"));
-    strUsage += HelpMessageOpt("-gen", strprintf(_("Generate coins (default: %u)"), 0));
+    strUsage += HelpMessageOpt("-gen", strprintf(_("Generate coins (default: %u)"), DEFAULT_GENERATE));
     strUsage += HelpMessageOpt("-genproclimit=<n>", strprintf(_("Set the number of threads for coin generation if enabled (-1 = all cores, default: %d)"), DEFAULT_GENERATE_THREADS));
     strUsage += HelpMessageOpt("-equihashsolver=<name>", _("Specify the Equihash solver to be used if enabled (default: \"default\")"));
     strUsage += HelpMessageOpt("-mineraddress=<addr>", _("Send mined coins to a specific single address"));
@@ -519,7 +524,7 @@ std::string HelpMessage(HelpMessageMode mode)
 
     strUsage += HelpMessageGroup(_("RPC server options:"));
     strUsage += HelpMessageOpt("-server", _("Accept command line and JSON-RPC commands"));
-    strUsage += HelpMessageOpt("-rest", strprintf(_("Accept public REST requests (default: %u)"), 0));
+    strUsage += HelpMessageOpt("-rest", strprintf(_("Accept public REST requests (default: %u)"), DEFAULT_REST_ENABLE));
     strUsage += HelpMessageOpt("-rpcbind=<addr>", _("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)"));
     strUsage += HelpMessageOpt("-rpcuser=<user>", _("Username for JSON-RPC connections"));
     strUsage += HelpMessageOpt("-rpcpassword=<pw>", _("Password for JSON-RPC connections"));
@@ -661,7 +666,7 @@ void ThreadImport(std::vector<boost::filesystem::path> vImportFiles)
         }
     }
 
-    if (GetBoolArg("-stopafterblockimport", false)) {
+    if (GetBoolArg("-stopafterblockimport", DEFAULT_STOPAFTERBLOCKIMPORT)) {
         LogPrintf("Stopping after block import\n");
         StartShutdown();
     }
@@ -786,7 +791,7 @@ bool AppInitServers(boost::thread_group& threadGroup)
         return false;
     if (!StartHTTPRPC())
         return false;
-    if (GetBoolArg("-rest", false) && !StartREST())
+    if (GetBoolArg("-rest", DEFAULT_REST_ENABLE) && !StartREST())
         return false;
     if (!StartHTTPServer())
         return false;
@@ -854,8 +859,8 @@ void InitParameterInteraction()
 void InitLogging()
 {
     fPrintToConsole = GetBoolArg("-printtoconsole", false);
-    fLogTimestamps = GetBoolArg("-logtimestamps", true);
-    fLogIPs = GetBoolArg("-logips", false);
+    fLogTimestamps = GetBoolArg("-logtimestamps", fLogTimestamps);
+    fLogIPs = GetBoolArg("-logips", fLogIPs);
 
     LogPrintf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
     LogPrintf("Zcash version %s (%s)\n", FormatFullVersion(), CLIENT_DATE);
@@ -946,7 +951,7 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
 
     // if using block pruning, then disable txindex
     if (GetArg("-prune", 0)) {
-        if (GetBoolArg("-txindex", false))
+        if (GetBoolArg("-txindex", DEFAULT_TXINDEX))
             return InitError(_("Prune mode is incompatible with -txindex."));
 #ifdef ENABLE_WALLET
         if (GetBoolArg("-rescan", false)) {
@@ -996,7 +1001,7 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
     mempool.SetMempoolCostLimit(mempoolTotalCostLimit, mempoolEvictionMemorySeconds);
 
     fCheckBlockIndex = GetBoolArg("-checkblockindex", chainparams.DefaultConsistencyChecks());
-    fCheckpointsEnabled = GetBoolArg("-checkpoints", true);
+    fCheckpointsEnabled = GetBoolArg("-checkpoints", fCheckpointsEnabled);
 
     // -par=0 means autodetect, but nScriptCheckThreads==0 means no concurrency
     nScriptCheckThreads = GetArg("-par", DEFAULT_SCRIPTCHECK_THREADS);
@@ -1095,8 +1100,8 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
         }
         expiryDeltaArg = expiryDelta;
     }
-    bSpendZeroConfChange = GetBoolArg("-spendzeroconfchange", true);
-    fSendFreeTransactions = GetBoolArg("-sendfreetransactions", false);
+    bSpendZeroConfChange = GetBoolArg("-spendzeroconfchange", bSpendZeroConfChange);
+    fSendFreeTransactions = GetBoolArg("-sendfreetransactions", fSendFreeTransactions);
 
     std::string strWalletFile = GetArg("-wallet", "wallet.dat");
     // Check Sapling migration address if set and is a valid Sapling address
@@ -1109,7 +1114,8 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
     }
 #endif // ENABLE_WALLET
 
-    fIsBareMultisigStd = GetBoolArg("-permitbaremultisig", true);
+    fIsBareMultisigStd = GetBoolArg("-permitbaremultisig", fIsBareMultisigStd);
+    fAcceptDatacarrier = GetBoolArg("-datacarrier", fAcceptDatacarrier);
     nMaxDatacarrierBytes = GetArg("-datacarriersize", nMaxDatacarrierBytes);
 
     fAlerts = GetBoolArg("-alerts", DEFAULT_ALERTS);
@@ -1330,7 +1336,7 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
         }
     }
 
-    bool proxyRandomize = GetBoolArg("-proxyrandomize", true);
+    bool proxyRandomize = GetBoolArg("-proxyrandomize", DEFAULT_PROXYRANDOMIZE);
     // -proxy sets a proxy for all outgoing network traffic
     // -noproxy (or -proxy=0) as well as the empty string can be used to not set a proxy, this is the default
     std::string proxyArg = GetArg("-proxy", "");
@@ -1366,7 +1372,7 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
     // see Step 2: parameter interactions for more information about these
     fListen = GetBoolArg("-listen", DEFAULT_LISTEN);
     fDiscover = GetBoolArg("-discover", true);
-    fNameLookup = GetBoolArg("-dns", true);
+    fNameLookup = GetBoolArg("-dns", fNameLookup);
 
     bool fBound = false;
     if (fListen) {
@@ -1467,7 +1473,7 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
     nTotalCache = std::max(nTotalCache, nMinDbCache << 20); // total cache cannot be less than nMinDbCache
     nTotalCache = std::min(nTotalCache, nMaxDbCache << 20); // total cache cannot be greated than nMaxDbcache
     int64_t nBlockTreeDBCache = nTotalCache / 8;
-    if (nBlockTreeDBCache > (1 << 21) && !GetBoolArg("-txindex", false))
+    if (nBlockTreeDBCache > (1 << 21) && !GetBoolArg("-txindex", DEFAULT_TXINDEX))
         nBlockTreeDBCache = (1 << 21); // block tree db cache shouldn't be larger than 2 MiB
 
     // https://github.com/bitpay/bitcoin/commit/c91d78b578a8700a45be936cb5bb0931df8f4b87#diff-c865a8939105e6350a50af02766291b7R1233
@@ -1534,7 +1540,7 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
                 }
 
                 // Check for changed -txindex state
-                if (fTxIndex != GetBoolArg("-txindex", false)) {
+                if (fTxIndex != GetBoolArg("-txindex", DEFAULT_TXINDEX)) {
                     strLoadError = _("You need to rebuild the database using -reindex to change -txindex");
                     break;
                 }
@@ -1791,7 +1797,7 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
                 }
             }
         }
-        pwalletMain->SetBroadcastTransactions(GetBoolArg("-walletbroadcast", true));
+        pwalletMain->SetBroadcastTransactions(GetBoolArg("-walletbroadcast", DEFAULT_WALLETBROADCAST));
     } // (!fDisableWallet)
 #else // ENABLE_WALLET
     LogPrintf("No wallet support compiled in!\n");
@@ -1909,7 +1915,7 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
 
 #ifdef ENABLE_MINING
     // Generate coins in the background
-    GenerateBitcoins(GetBoolArg("-gen", false), GetArg("-genproclimit", DEFAULT_GENERATE_THREADS), chainparams);
+    GenerateBitcoins(GetBoolArg("-gen", DEFAULT_GENERATE), GetArg("-genproclimit", DEFAULT_GENERATE_THREADS), chainparams);
 #endif
 
     // ********************************************************* Step 11: finished
diff --git a/src/main.cpp b/src/main.cpp
index 3ae1c0e59..2c29d319f 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1563,7 +1563,7 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa
         }
 
         // Require that free transactions have sufficient priority to be mined in the next block.
-        if (GetBoolArg("-relaypriority", false) && nFees < ::minRelayTxFee.GetFee(nSize) && !AllowFree(view.GetPriority(tx, chainActive.Height() + 1))) {
+        if (GetBoolArg("-relaypriority", DEFAULT_RELAYPRIORITY) && nFees < ::minRelayTxFee.GetFee(nSize) && !AllowFree(view.GetPriority(tx, chainActive.Height() + 1))) {
             return state.DoS(0, false, REJECT_INSUFFICIENTFEE, "insufficient priority");
         }
 
@@ -1584,7 +1584,7 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa
             nLastTime = nNow;
             // -limitfreerelay unit is thousand-bytes-per-minute
             // At default rate it would take over a month to fill 1GB
-            if (dFreeCount >= GetArg("-limitfreerelay", 15)*10*1000)
+            if (dFreeCount >= GetArg("-limitfreerelay", DEFAULT_LIMITFREERELAY) * 10 * 1000)
                 return state.DoS(0, error("AcceptToMemoryPool: free transaction rejected by rate limiter"),
                                  REJECT_INSUFFICIENTFEE, "rate limited free transaction");
             LogPrint("mempool", "Rate limit dFreeCount: %g => %g\n", dFreeCount, dFreeCount+nSize);
@@ -2002,7 +2002,7 @@ void Misbehaving(NodeId pnode, int howmuch)
         return;
 
     state->nMisbehavior += howmuch;
-    int banscore = GetArg("-banscore", 100);
+    int banscore = GetArg("-banscore", DEFAULT_BANSCORE_THRESHOLD);
     if (state->nMisbehavior >= banscore && state->nMisbehavior - howmuch < banscore)
     {
         LogPrintf("%s: %s (%d -> %d) BAN THRESHOLD EXCEEDED\n", __func__, state->name, state->nMisbehavior-howmuch, state->nMisbehavior);
@@ -4840,7 +4840,7 @@ bool InitBlockIndex(const CChainParams& chainparams)
         return true;
 
     // Use the provided setting for -txindex in the new database
-    fTxIndex = GetBoolArg("-txindex", false);
+    fTxIndex = GetBoolArg("-txindex", DEFAULT_TXINDEX);
     pblocktree->WriteFlag("txindex", fTxIndex);
 
     // Use the provided setting for -insightexplorer in the new database
@@ -5179,7 +5179,7 @@ std::string GetWarnings(const std::string& strFor)
     if (!CLIENT_VERSION_IS_RELEASE)
         strStatusBar = _("This is a pre-release test build - use at your own risk - do not use for mining or merchant applications");
 
-    if (GetBoolArg("-testsafemode", false))
+    if (GetBoolArg("-testsafemode", DEFAULT_TESTSAFEMODE))
         strStatusBar = strRPC = "testsafemode enabled";
 
     // Misc warnings like out of disk space and clock is wrong
diff --git a/src/main.h b/src/main.h
index 823081aee..559fefd02 100644
--- a/src/main.h
+++ b/src/main.h
@@ -106,8 +106,15 @@ static const unsigned int DATABASE_WRITE_INTERVAL = 60 * 60;
 static const unsigned int DATABASE_FLUSH_INTERVAL = 24 * 60 * 60;
 /** Maximum length of reject messages. */
 static const unsigned int MAX_REJECT_MESSAGE_LENGTH = 111;
+static const unsigned int DEFAULT_LIMITFREERELAY = 15;
+static const bool DEFAULT_RELAYPRIORITY = false;
 static const int64_t DEFAULT_MAX_TIP_AGE = 24 * 60 * 60;
 
+static const bool DEFAULT_TXINDEX = false;
+static const unsigned int DEFAULT_BANSCORE_THRESHOLD = 100;
+
+static const bool DEFAULT_TESTSAFEMODE = false;
+
 // Sanity check the magic numbers when we change them
 BOOST_STATIC_ASSERT(DEFAULT_BLOCK_MAX_SIZE <= MAX_BLOCK_SIZE);
 BOOST_STATIC_ASSERT(DEFAULT_BLOCK_PRIORITY_SIZE <= DEFAULT_BLOCK_MAX_SIZE);
diff --git a/src/miner.cpp b/src/miner.cpp
index 858400806..fe25ebebe 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -157,7 +157,7 @@ CBlockTemplate* CreateNewBlock(const CChainParams& chainparams, const CScript& s
         // Priority order to process transactions
         list<COrphan> vOrphan; // list memory doesn't move
         map<uint256, vector<COrphan*> > mapDependers;
-        bool fPrintPriority = GetBoolArg("-printpriority", false);
+        bool fPrintPriority = GetBoolArg("-printpriority", DEFAULT_PRINTPRIORITY);
 
         // This vector will be sorted into a priority queue:
         vector<TxPriority> vecPriority;
diff --git a/src/miner.h b/src/miner.h
index c7091ddcc..1a6c286d6 100644
--- a/src/miner.h
+++ b/src/miner.h
@@ -16,8 +16,11 @@ class CChainParams;
 class CScript;
 namespace Consensus { struct Params; };
 
+static const bool DEFAULT_GENERATE = false;
 static const int DEFAULT_GENERATE_THREADS = 1;
 
+static const bool DEFAULT_PRINTPRIORITY = false;
+
 struct CBlockTemplate
 {
     CBlock block;
diff --git a/src/net.cpp b/src/net.cpp
index fa2e83710..a6c2ef585 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -491,7 +491,7 @@ void CNode::Ban(const CNetAddr& addr, int64_t bantimeoffset, bool sinceUnixEpoch
 }
 
 void CNode::Ban(const CSubNet& subNet, int64_t bantimeoffset, bool sinceUnixEpoch) {
-    int64_t banTime = GetTime()+GetArg("-bantime", 60*60*24);  // Default 24-hour ban
+    int64_t banTime = GetTime()+GetArg("-bantime", DEFAULT_MISBEHAVING_BANTIME);
     if (bantimeoffset > 0)
         banTime = (sinceUnixEpoch ? 0 : GetTime() )+bantimeoffset;
 
@@ -1243,7 +1243,7 @@ void ThreadDNSAddressSeed()
 {
     // goal: only query DNS seeds if address need is acute
     if ((addrman.size() > 0) &&
-        (!GetBoolArg("-forcednsseed", false))) {
+        (!GetBoolArg("-forcednsseed", DEFAULT_FORCEDNSSEED))) {
         MilliSleep(11 * 1000);
 
         LOCK(cs_vNodes);
@@ -2052,8 +2052,8 @@ bool CAddrDB::Read(CAddrMan& addr)
     return true;
 }
 
-unsigned int ReceiveFloodSize() { return 1000*GetArg("-maxreceivebuffer", 5*1000); }
-unsigned int SendBufferSize() { return 1000*GetArg("-maxsendbuffer", 1*1000); }
+unsigned int ReceiveFloodSize() { return 1000*GetArg("-maxreceivebuffer", DEFAULT_MAXRECEIVEBUFFER); }
+unsigned int SendBufferSize() { return 1000*GetArg("-maxsendbuffer", DEFAULT_MAXSENDBUFFER); }
 
 CNode::CNode(SOCKET hSocketIn, const CAddress& addrIn, const std::string& addrNameIn, bool fInboundIn) :
     ssSend(SER_NETWORK, INIT_PROTO_VERSION),
diff --git a/src/net.h b/src/net.h
index 63b21f2ca..4cf4f9a35 100644
--- a/src/net.h
+++ b/src/net.h
@@ -62,6 +62,13 @@ static const unsigned int DEFAULT_MAX_PEER_CONNECTIONS = 125;
 /** The period before a network upgrade activates, where connections to upgrading peers are preferred (in blocks). */
 static const int NETWORK_UPGRADE_PEER_PREFERENCE_BLOCK_PERIOD = 24 * 24 * 3;
 
+static const bool DEFAULT_FORCEDNSSEED = false;
+static const size_t DEFAULT_MAXRECEIVEBUFFER = 5 * 1000;
+static const size_t DEFAULT_MAXSENDBUFFER    = 1 * 1000;
+
+// NOTE: When adjusting this, update rpcnet:setban's help ("24h")
+static const unsigned int DEFAULT_MISBEHAVING_BANTIME = 60 * 60 * 24;  // Default 24-hour ban
+
 unsigned int ReceiveFloodSize();
 unsigned int SendBufferSize();
 
diff --git a/src/netbase.cpp b/src/netbase.cpp
index fe4113399..44473aaee 100644
--- a/src/netbase.cpp
+++ b/src/netbase.cpp
@@ -40,7 +40,7 @@ static proxyType proxyInfo[NET_MAX];
 static proxyType nameProxy;
 static CCriticalSection cs_proxyInfos;
 int nConnectTimeout = DEFAULT_CONNECT_TIMEOUT;
-bool fNameLookup = false;
+bool fNameLookup = true;
 
 static const unsigned char pchIPv4[12] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff };
 
diff --git a/src/rpc/mining.cpp b/src/rpc/mining.cpp
index 2e6b916d3..013209ec9 100644
--- a/src/rpc/mining.cpp
+++ b/src/rpc/mining.cpp
@@ -143,7 +143,7 @@ UniValue getgenerate(const UniValue& params, bool fHelp)
         throw runtime_error(
             "getgenerate\n"
             "\nReturn if the server is set to generate coins or not. The default is false.\n"
-            "It is set with the command line argument -gen (or zcash.conf setting gen)\n"
+            "It is set with the command line argument -gen (or " + std::string(BITCOIN_CONF_FILENAME) + " setting gen)\n"
             "It can also be set with the setgenerate call.\n"
             "\nResult\n"
             "true|false      (boolean) If the server is set to generate coins or not\n"
@@ -153,7 +153,7 @@ UniValue getgenerate(const UniValue& params, bool fHelp)
         );
 
     LOCK(cs_main);
-    return GetBoolArg("-gen", false);
+    return GetBoolArg("-gen", DEFAULT_GENERATE);
 }
 
 UniValue generate(const UniValue& params, bool fHelp)
diff --git a/src/script/standard.cpp b/src/script/standard.cpp
index a2bc5c576..231c6ed3a 100644
--- a/src/script/standard.cpp
+++ b/src/script/standard.cpp
@@ -16,6 +16,7 @@ using namespace std;
 
 typedef vector<unsigned char> valtype;
 
+bool fAcceptDatacarrier = true;
 unsigned nMaxDatacarrierBytes = MAX_OP_RETURN_RELAY;
 
 CScriptID::CScriptID(const CScript& in) : uint160(Hash160(in.begin(), in.end())) {}
diff --git a/src/script/standard.h b/src/script/standard.h
index 037b22851..4dea29f12 100644
--- a/src/script/standard.h
+++ b/src/script/standard.h
@@ -26,6 +26,7 @@ public:
 };
 
 static const unsigned int MAX_OP_RETURN_RELAY = 80; //!< bytes
+extern bool fAcceptDatacarrier;
 extern unsigned nMaxDatacarrierBytes;
 
 /**
diff --git a/src/util.cpp b/src/util.cpp
index 95566a5e6..bdb3a5d1f 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -99,6 +99,9 @@ namespace boost {
 
 using namespace std;
 
+const char * const BITCOIN_CONF_FILENAME = "zcash.conf";
+const char * const BITCOIN_PID_FILENAME = "zcashd.pid";
+
 map<string, string> mapArgs;
 map<string, vector<string> > mapMultiArgs;
 bool fDebug = false;
@@ -590,7 +593,7 @@ void ClearDatadirCache()
 
 boost::filesystem::path GetConfigFile()
 {
-    boost::filesystem::path pathConfigFile(GetArg("-conf", "zcash.conf"));
+    boost::filesystem::path pathConfigFile(GetArg("-conf", BITCOIN_CONF_FILENAME));
     if (!pathConfigFile.is_complete())
         pathConfigFile = GetDataDir(false) / pathConfigFile;
 
@@ -624,7 +627,7 @@ void ReadConfigFile(map<string, string>& mapSettingsRet,
 #ifndef WIN32
 boost::filesystem::path GetPidFile()
 {
-    boost::filesystem::path pathPidFile(GetArg("-pid", "zcashd.pid"));
+    boost::filesystem::path pathPidFile(GetArg("-pid", BITCOIN_PID_FILENAME));
     if (!pathPidFile.is_complete()) pathPidFile = GetDataDir() / pathPidFile;
     return pathPidFile;
 }
diff --git a/src/util.h b/src/util.h
index 6da498a0a..575dc60b1 100644
--- a/src/util.h
+++ b/src/util.h
@@ -55,6 +55,13 @@ extern CTranslationInterface translationInterface;
 
 [[noreturn]] extern void new_handler_terminate();
 
+extern const char * const BITCOIN_CONF_FILENAME;
+extern const char * const BITCOIN_PID_FILENAME;
+
+static const bool DEFAULT_SELFSIGNED_ROOTCERTS = false;
+static const bool DEFAULT_CHOOSE_DATADIR = false;
+static const bool DEFAULT_SPLASHSCREEN = true;
+
 /**
  * Translation function: Call Translate signal on UI interface, which returns a boost::optional result.
  * If no translation slot is registered, nothing is returned, and simply return the input.
diff --git a/src/wallet/db.cpp b/src/wallet/db.cpp
index bc269e038..d2741f7c1 100644
--- a/src/wallet/db.cpp
+++ b/src/wallet/db.cpp
@@ -85,7 +85,7 @@ bool CDBEnv::Open(const boost::filesystem::path& pathIn)
     LogPrintf("CDBEnv::Open: LogDir=%s ErrorFile=%s\n", pathLogDir.string(), pathErrorFile.string());
 
     unsigned int nEnvFlags = 0;
-    if (GetBoolArg("-privdb", true))
+    if (GetBoolArg("-privdb", DEFAULT_WALLET_PRIVDB))
         nEnvFlags |= DB_PRIVATE;
 
     dbenv->set_lg_dir(pathLogDir.string().c_str());
diff --git a/src/wallet/db.h b/src/wallet/db.h
index 10454f588..608723593 100644
--- a/src/wallet/db.h
+++ b/src/wallet/db.h
@@ -21,6 +21,7 @@
 #include <db_cxx.h>
 
 static const unsigned int DEFAULT_WALLET_DBLOGSIZE = 100;
+static const bool DEFAULT_WALLET_PRIVDB = true;
 
 extern unsigned int nWalletDBUpdated;
 
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index 65eb0944c..cb411698a 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -3806,7 +3806,7 @@ bool CWallet::NewKeyPool()
         if (IsLocked())
             return false;
 
-        int64_t nKeys = max(GetArg("-keypool", 100), (int64_t)0);
+        int64_t nKeys = max(GetArg("-keypool", DEFAULT_KEYPOOL_SIZE), (int64_t)0);
         for (int i = 0; i < nKeys; i++)
         {
             int64_t nIndex = i+1;
@@ -3833,7 +3833,7 @@ bool CWallet::TopUpKeyPool(unsigned int kpSize)
         if (kpSize > 0)
             nTargetSize = kpSize;
         else
-            nTargetSize = max(GetArg("-keypool", 100), (int64_t) 0);
+            nTargetSize = max(GetArg("-keypool", DEFAULT_KEYPOOL_SIZE), (int64_t) 0);
 
         while (setKeyPool.size() < (nTargetSize + 1))
         {
diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
index b6cded3bf..fdf8b88a6 100644
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -48,6 +48,7 @@ extern bool bSpendZeroConfChange;
 extern bool fSendFreeTransactions;
 extern bool fPayAtLeastCustomFee;
 
+static const unsigned int DEFAULT_KEYPOOL_SIZE = 100;
 //! -paytxfee default
 static const CAmount DEFAULT_TRANSACTION_FEE = 0;
 //! -paytxfee will warn if called with a higher fee than this amount (in satoshis) per KB
@@ -60,6 +61,7 @@ static const unsigned int DEFAULT_TX_CONFIRM_TARGET = 2;
 static const CAmount nHighTransactionMaxFeeWarning = 100 * nHighTransactionFeeWarning;
 //! Largest (in bytes) free transaction we're willing to create
 static const unsigned int MAX_FREE_TRANSACTION_CREATE_SIZE = 1000;
+static const bool DEFAULT_WALLETBROADCAST = true;
 //! Size of witness cache
 //  Should be large enough that we can expect not to reorg beyond our cache
 //  unless there is some exceptional network disruption.
diff --git a/src/wallet/walletdb.cpp b/src/wallet/walletdb.cpp
index 30a14d11e..4ded74273 100644
--- a/src/wallet/walletdb.cpp
+++ b/src/wallet/walletdb.cpp
@@ -1072,7 +1072,7 @@ void ThreadFlushWalletDB(const string& strFile)
     if (fOneThread)
         return;
     fOneThread = true;
-    if (!GetBoolArg("-flushwallet", true))
+    if (!GetBoolArg("-flushwallet", DEFAULT_FLUSHWALLET))
         return;
 
     unsigned int nLastSeen = nWalletDBUpdated;
diff --git a/src/wallet/walletdb.h b/src/wallet/walletdb.h
index 94ebc0c75..ddba7cc6e 100644
--- a/src/wallet/walletdb.h
+++ b/src/wallet/walletdb.h
@@ -19,6 +19,8 @@
 #include <utility>
 #include <vector>
 
+static const bool DEFAULT_FLUSHWALLET = true;
+
 class CAccount;
 class CAccountingEntry;
 struct CBlockLocator;