I was wondering if the gui version, darkcin-qt is less secure to run than the terminal interface only darkcoind is?
http://bitcoin.stackexchange.com/qu...en-bitcoind-and-bitcoin-qt-different-commandsYou can either run bitcoin-qt or bitcoind, not both at the same time (the Qt part is not just a frontend on top of the RPC code, it uses the core directly).
You can however run Bitcoin-Qt with the -server command-line switch, in which case it will also expose an RPC service (essentially functioning like bitcoind in addition to the GUI interface). The RPC console inside the GUI has the exact same functionality as the bitcoind RPC client.
PS: bitcoind is both an RPC server (when started without RPC command on the command-line) and an RPC client (when started with RPC command on the command-line), while Bitcoin-Qt only optionally runs an RPC server (when started with -server).