我可以使用node.js获取唯一的服务器机器标识符吗? [英] Can I fetch a unique server machine identifier with node.js?

问题描述

我想知道是否有让NODE检索运行它的服务器的MAC地址的方法.

I would like to know if there is a way of having NODE retrieve the MAC address(es) of the server on which it is running.

推荐答案

节点没有内置访问此类低级数据的功能.

Node has no built-in was to access this kind of low-level data.

但是，您可以执行ifconfig并解析其输出，或者为节点编写C ++扩展，该扩展提供了检索mac地址的功能.甚至更简单的方法是阅读/sys/class/net/eth?/address:

However, you could execute ifconfig and parse its output or write a C++ extension for node that provides a function to retrieve the mac address. An even easier way is reading /sys/class/net/eth?/address:

var fs = require('fs'),
    path = require('path');
function getMACAddresses() {
    var macs = {}
    var devs = fs.readdirSync('/sys/class/net/');
    devs.forEach(function(dev) {
        var fn = path.join('/sys/class/net', dev, 'address');
        if(dev.substr(0, 3) == 'eth' && fs.existsSync(fn)) {
            macs[dev] = fs.readFileSync(fn).toString().trim();
        }
    });
    return macs;
}

console.log(getMACAddresses());

该函数返回一个对象，其中包含所有eth*设备的mac地址.如果您想让所有设备都拥有一个，即使它们是称为wlan*，只需删除dev.substr(0, 3) == 'eth'检查.

The function returns an object containing the mac addresses of all eth* devices. If you want all devices that have one, even if they are e.g. called wlan*, simply remove the dev.substr(0, 3) == 'eth' check.

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