https://github.com/silverwind/ip-ptr

Get the PTR name for a given IPv4 or IPv6 address
https://github.com/silverwind/ip-ptr

Last synced: about 2 months ago
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Get the PTR name for a given IPv4 or IPv6 address

• Host: GitHub
• URL: https://github.com/silverwind/ip-ptr
• Owner: silverwind
• License: bsd-2-clause
• Created: 2017-01-17T21:41:07.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2023-11-09T15:24:48.000Z (11 months ago)
• Last Synced: 2024-04-08T09:47:54.366Z (5 months ago)
• Language: JavaScript
• Size: 48.8 KB
• Stars: 4
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# ip-ptr

[![](https://img.shields.io/npm/v/ip-ptr.svg?style=flat)](https://www.npmjs.org/package/ip-ptr) [![](https://img.shields.io/npm/dm/ip-ptr.svg)](https://www.npmjs.org/package/ip-ptr) [![](https://api.travis-ci.org/silverwind/ip-ptr.svg?style=flat)](https://travis-ci.org/silverwind/ip-ptr)

> Get the PTR name for a given IPv4 or IPv6 address

## Installation

```console

$ npm i ip-ptr

```

## Example

```js

const ipPtr = require('ip-ptr');

ipPtr('1.2.3.4');

//=> 4.3.2.1.in-addr.arpa

ipPtr('2001:db8::1');

//=> 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa

```

## API

### ipPtr(ip)

- `ip` *string* - A IPv4 or IPv6 address.

Will throw on if `ip` is not a valid IP address.

© [silverwind](https://github.com/silverwind), distributed under BSD licence