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# hostile [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url] [travis-image]: https://img.shields.io/travis/feross/hostile/master.svg [travis-url]: https://travis-ci.org/feross/hostile [npm-image]: https://img.shields.io/npm/v/hostile.svg [npm-url]: https://npmjs.org/package/hostile [downloads-image]: https://img.shields.io/npm/dm/hostile.svg [downloads-url]: https://npmjs.org/package/hostile [standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg [standard-url]: https://standardjs.com #### Simple, programmatic `/etc/hosts` manipulation (in node.js)  ## install ```bash npm install hostile ``` ## usage If you use OS X or Linux, this module assumes your hosts file is at `/etc/hosts`. On Windows, it assumes your hosts file is at `C:/Windows/System32/drivers/etc/hosts`. **Commands that modify the hosts file require root privileges.** #### list all host file records ```bash hostile list ``` #### set a domain in the hosts file ```bash hostile set [ip] [host] ``` examples: ```bash hostile set localhost domain.com hostile set 192.168.33.10 domain.com ``` #### remove a domain from the hosts file ```bash hostile remove [host] ``` example: ```bash hostile remove domain.com ``` #### load a set of hosts from a file ```bash hostile load [file_path] ``` hosts.txt ```bash # hosts.txt 127.0.0.1 github.com 127.0.0.1 twitter.com ``` example: ```bash hostile load hosts.txt ``` #### unload [remove] a set of hosts from a file ```bash hostile unload [file_path] ``` ```bash # hosts.txt 127.0.0.1 github.com 127.0.0.1 twitter.com ``` example: ```bash hostile unload hosts.txt ``` ## methods Commands that modify the hosts file require root privileges. I wouldn't recommend running your production node server with admin privileges unless you downgrade to a normal user with [`process.setuid(id)`](http://nodejs.org/api/process.html#process_process_setuid_id) before you start accepting requests. **All methods have sync versions. Just omit the callback parameter.** #### add a rule to /etc/hosts ```js var hostile = require('hostile') hostile.set('127.0.0.1', 'peercdn.com', function (err) { if (err) { console.error(err) } else { console.log('set /etc/hosts successfully!') } }) ``` If the rule already exists, then this does nothing. #### remove a rule from /etc/hosts ```js hostile.remove('127.0.0.1', 'peercdn.com', function (err) { if (err) { console.error(err) } else { console.log('set /etc/hosts successfully!') } }) ``` If the rule does not exist, then this does nothing. #### get all lines in /etc/hosts ```js // If `preserveFormatting` is true, then include comments, blank lines and other // non-host entries in the result var preserveFormatting = false hostile.get(preserveFormatting, function (err, lines) { if (err) { console.error(err.message) } lines.forEach(function (line) { console.log(line) // [IP, Host] }) }) ``` #### get all lines in any file ```js // If `preserveFormatting` is true, then include comments, blank lines and other // non-host entries in the result var preserveFormatting = false hostile.getFile(file_path, preserveFormatting, function (err, lines) { if (err) { console.error(err.message) } lines.forEach(function (line) { console.log(line) // [IP, Host] }) }) ``` ## contributors - [Feross Aboukhadijeh](http://feross.org) (author) - [Maayan Glikser](https://github.com/morsdyce) ## license MIT. Copyright (c) [Feross Aboukhadijeh](http://feross.org).

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