hostname-is-private
v2.0.8
Published
Check whether or not an hostname refer to a private IP
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hostname-is-private
Check whether or not an hostname refers to a private IP
Setup
npm install hostname-is-private
Usage
isPrivate(hostname: {String}, f: (err : {Error,Null}, isPrivate: {Boolean}))
var isPrivate = require('hostname-is-private').isPrivate;
isPrivate('127.0.0.1.xip.io', function(err, isPrivate){
console.log(err === null, isPrivate == true);
});
isPrivate('localhost', function(err, isPrivate){
console.log(err === null, isPrivate === true);
});
isPrivate('google.com', function(err, isPrivate){
console.log(err === null, isPrivate === false);
});
isPrivateIncludingPublicIp(hostname: {String}, f: (err : {Error,Null}, isPrivateIncludingPublicIp: {Boolean}))
var isPrivateIncludingPublicIp = require('hostname-is-private').isPrivateIncludingPublicIp;
isPrivateIncludingPublicIp('YOUR-PUBLIC-IP.xip.io', function(err, isPrivate){
console.log(err === null, isPrivate == true);
});
isPrivate('localhost', function(err, isPrivate){
console.log(err === null, isPrivate === true);
});
isPrivate('google.com', function(err, isPrivate){
console.log(err === null, isPrivate === false);
});
How it works
It uses dns.lookup underneath and ip.isPrivate to check if the resolved IP is private (or not).