Check the validity of RPC and websocket.
git clone https://github.com/AoiToSouma/rpcCheck.git
cd rpcCheck
npm install
nano rpcCheck.js
Edit array variable: targets and ws_targets.
example
node rpcCheck.js -blc
Usage: node rpcCheck.js {function}
where {function} is one of the following;
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-blc == Display the synchronized block number.
-rpcv == Display Master Node version via RPC.
-wsv == Display Master Node version via websocket.
-gas == Display gasprice.
-prfx == Display prefix type.
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