strUsage+=HelpMessageOpt("-rpcport=<port>",strprintf(_("Listen for JSON-RPC connections on <port> (default: %u or testnet: %u)"),8232,18232));
strUsage+=HelpMessageOpt("-rpcallowip=<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"));
strUsage+=HelpMessageOpt("-rpcthreads=<n>",strprintf(_("Set the number of threads to service RPC calls (default: %d)"),4));
// TODO #1856: Re-enable support for persistent connections.
// Disabled to avoid rpc deadlock #1680, until we backport upstream changes which replace boost::asio with libevent, or another solution is implemented.
//strUsage += HelpMessageOpt("-rpckeepalive", strprintf(_("RPC support for HTTP persistent connections (default: %d)"), 1));
strUsage+=HelpMessageOpt("-rpckeepalive",strprintf(_("RPC support for HTTP persistent connections (default: %d)"),1));
// Disabled until we can lock notes and also tune performance of libsnark which by default uses multiple threads
//strUsage += HelpMessageOpt("-rpcasyncthreads=<n>", strprintf(_("Set the number of threads to service Async RPC calls (default: %d)"), 1));