bitcoind is refusing to connect to my other server
closed as unclear what you're asking by chytrik, Andrew Chow♦ Oct 7 '18 at 1:46
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By default bitcoind only binds RPC to the loopback interface, so you can only connect to it from localhost. This is for security.
You can allow connections from a specific other machine with
-rpcallowip, or in general with
-rpcbind, but beware that this substantially increases the attack surface. Moreover, the data sent and received is not encrypted, see Why is JSON-RPC over SSL "strongly discouraged"?.
It's recommended instead to use VPN software to set up a tunnel between the two machines. In such a setup, bitcoind will see the RPC connection as coming from localhost.