Mac OS X users can install the Oracle JRE 8 (64-bit version) from the Homebrew throw Cask. It is enough to run brew cask install Caskroom/cask/java.
Now you can check your JRE installation. Run terminal and execute command java -version. If you see
java version "1.8.0_74"
Java(TM) SE Runtime Environment (build 1.8.0_74-b02)
Java HotSpot(TM) 64-Bit Server VM (build 25.74-b02, mixed mode)
then all is ok, and you can move on to the next step!
If you get an error check your installation and try to find a solution or a better tutorial online.
Note. It's necessary to install **Oracle JRE 8 **with 64-bit version.
Download the latest version of waves.jar and the required .conf configuration file (for mainnet or testnet) to any folder, for example ~/waves.
Carefully edit the configuration waves.conf file, it is very important! The safety of your wallet and money depends on this!
Just open it with your favorite text editor, pour a cup of tea and read the documentation of the configuration file.
Then start Terminal app Terminal.app, navigate to the folder with the jar file with the command cd ~/wavesand start waves node with command java -jar waves.jar waves.conf.
For added security, it is recommended to store your wallet and configuration applications on an encrypted partition. You can read about it here.
Also, you may want to limit the use of these folders to designated users only. You can read about it here.
If you decide to use RPC, you should protect it with Mac OS X embedded or any other firewall. You can read about it here. If your server is public and available to the Internet and you decide to enable and use RPC, then allow only certain methods using Nginx's proxy_pass module and do not forget to set the API key hash in the configuration file.
Also, do not forget to keep the OS and other security software up-to-date.