First of all, we need to explain the downsides and limitations of using one wallet for both purposes, instead of two wallets as per this guide. When we use just one wallet, this poses a security risk because your wallet is always online with a known masternode IP address. Somebody can use this information to gain access to your FIX wallet and coins. The single IP address in use is also a limitation factor because you will only be able to start one copy of the same wallet. If you know that you don't have additional hardware and won’t plan to start more than one masternode, that option makes sense. However, if you like to separate your coins and masternode, please continue below.