node-red-nodes/io/ping/README.md

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node-red-node-ping
==================
A <a href="http://nodered.org" target="_new">Node-RED</a> node to ping a remote server, for use as a keep-alive check.
Install
-------
Run the following command in the root directory of your Node-RED install
npm install node-red-node-ping
Usage
-----
Pings a machine and returns the trip time in mS.
Returns boolean **false** if no response received within 5 seconds, or if the host is unresolveable.
Default ping is every 20 seconds but can be configured.