Passport is Authentication Middleware for Node.JS, it is not for any specific method of authentication, the method for authentication like OAuth, JWT is implemented in Passport by Strategy pattern, so it means that you can swap the authentication mechanism without affecting other parts of your application.

&gt; 
Passport is authentication middleware for Node.js. Extremely flexible and modular, Passport can be unobtrusively dropped in to any Express-based web application. A comprehensive set of strategies support authentication using a username and password, Facebook, Twitter, and more.

http://passportjs.org/

&gt; A Passport strategy for authenticating with a JSON Web Token.

This module lets you authenticate endpoints using a JSON web token. It is intended to be used to secure RESTful endpoints without sessions.

https://www.npmjs.com/package/passport-jwt



Passport is just  middleware for Node.JS.

JSON Web Token can be used &quot;inside&quot; of passport. Passport offers other features too.


I am trying to connect my firebase app in to a domain -where the domain purchesd from google.Need help to to do the setup for DNS configuration.
my app is working fine in firebase app.
firebase app is - https://&lt;app name&gt;.firebaseapp.com/

My Firebase setup
-----------------


[![enter image description here][1]][1]

And

[![enter image description here][2]][2]

Google Domain (https://domains.google.com/) - DNS Configuration
-------------------------------
**1.Name servers**
      Default is &quot;Use the Google Domains name servers&quot; is it OK?, if not what to setup

[![enter image description here][3]][3]

**2.Registered hosts**

If anything, need to add- please let me know.

[![enter image description here][4]][4]

**3.Synthetic records**

   If anything, need to setup - please let me know.

[![enter image description here][5]][5]

**4. Custom resource records**

I am trying to add two records but getting error while trying to add second record - is &quot;Record already in use&quot;
please find the screen shot

[![enter image description here][6]][6]

**Update
Now I have added both the IP address, but still it is not working.**

[![enter image description here][7]][7]


  [1]: https://i.stack.imgur.com/GKVCJ.png
  [2]: https://i.stack.imgur.com/aZ8X2.png
  [3]: https://i.stack.imgur.com/oA4Ml.png
  [4]: https://i.stack.imgur.com/BOg9i.png
  [5]: https://i.stack.imgur.com/mRF0h.png
  [6]: https://i.stack.imgur.com/WNkT8.png
  [7]: https://i.stack.imgur.com/nygxp.png

Google Domain - DNS Configuration for Firebase Hosting - Connect Domain

Got this Error after running webpack. Webpack is installed globally and I&#39;m running Node

    PS D:\Projects\ng2-admin-master&gt; ng serve
    Cannot find module &#39;webpack/lib/node/NodeTemplatePlugin&#39;
    Error: Cannot find module &#39;webpack/lib/node/NodeTemplatePlugin&#39;
        at Function.Module._resolveFilename (module.js:469:15)
        at Function.Module._load (module.js:417:25)
        at Module.require (module.js:497:17)
        at require (internal/module.js:20:19)
        at Object.&lt;anonymous&gt; (D:\Projects\ng2-admin-master\node_modules\html-webpack-plugin\lib\compiler.js:11:26)
        at Module._compile (module.js:570:32)
        at Object.Module._extensions..js (module.js:579:10)
        at Module.load (module.js:487:32)
        at tryModuleLoad (module.js:446:12)
        at Function.Module._load (module.js:438:3)
        at Module.require (module.js:497:17)
        at require (internal/module.js:20:19)
        at Object.&lt;anonymous&gt; (D:\Projects\ng2-admin-master\node_modules\html-webpack-plugin\index.js:7:21)
        at Module._compile (module.js:570:32)
        at Object.Module._extensions..js (module.js:579:10)
        at Module.load (module.js:487:32)
    PS D:\Projects\ng2-admin-master&gt;

Error: Cannot find module &#39;webpack/lib/node/NodeTemplatePlugin&#39;

I&#39;m pretty new to Express/Node - I&#39;m trying to figure out what the difference between Passport and JWT is but can&#39;t find a definitive answer? I know you can use one or the other for auth purposes in an application, or together with an npm package like passport-jwt. 

So what I want to know is:

1. What does JWT do that Passport doesn&#39;t (and vice versa)?

2. What is the preferred method for authentication/authorization and why?

Difference between Passport and JWT?

I'm pretty new to Express/Node - I'm trying to figure out what the difference between Passport and JWT is but can't find a definitive answer? I know you can use one or the other for auth purposes in an application, or together with an npm package like passport-jwt.
So what I want to know is:
<ol>
<li>
What does JWT do that Passport doesn't (and vice versa)?
</li>
<li>
What is the preferred method for authentication/authorization and why?
</li>
</ol>

I am facing a problem with client side https requests.

A snippet can look like this:

    var fs = require(&#39;fs&#39;);
    var https = require(&#39;https&#39;);

    var options = {
        hostname: &#39;someHostName.com&#39;,
        port: 443,
        path: &#39;/path&#39;,
        method: &#39;GET&#39;,
        key: fs.readFileSync(&#39;key.key&#39;),
        cert: fs.readFileSync(&#39;certificate.crt&#39;)
    }

    var requestGet = https.request(options, function(res){
        console.log(&#39;resObj&#39;, res);
    }

What I get is Error: self signed certificate in certificate chain.

When I use Postman I can import the client certificate and key and use it without any problem. Is there any solution available?? I would also like to be given some lights on how postman handles the certificates and works. 

nodejs - error self signed certificate in certificate chain

I&#39;ve been struggling a lot to properly implement Stomp (websocket) **Authentication** and **Authorization** with Spring-Security. *For posterity i&#39;ll answer my own question to provide a guide.*

&lt;br /&gt;

### The Problem
Spring WebSocket documentation (for Authentication) looks unclear ATM (IMHO). And i couldn&#39;t understand how to properly handle **Authentication** and **Authorization**.

&lt;br /&gt;

### What i want
- Authenticate users with login/password.
- Prevent anonymous users to CONNECT though WebSocket.
- Add authorization layer (user, admin, ...).
- Having `Principal` available in controllers.

&lt;br /&gt;

### What i don&#39;t want
- Authenticate on HTTP negotiation endpoints (since most of JavaScript libraries don&#39;t sends authentication headers along with the HTTP negotiation call).

Websocket Authentication and Authorization in Spring

Im trying to push to github with sourcetree but get the following error:

&gt; git -c diff.mnemonicprefix=false -c core.quotepath=false push -v
&gt; --tags origin live_version:live_version remote: Invalid username or password. fatal: Authentication failed for
&gt; &#39;https://github.com/myname/myrepo/&#39; Pushing to
&gt; https://github.com/myname/myrepo
&gt; 
&gt; Completed with errors, see above.

[![enter image description here][1]][1]
However when I go to 

&gt;tools &gt; authentication &gt; my github account

And click edit &gt; refresh oauth token
[![enter image description here][2]][2]
A page opens and I get:

Authentication Successful

    SourceTree has been successfully authenticated. You may now close this page.

It always worked but it suddenly stopped, i do not have two factor authentication. 
I tried deleting the account and adding it again to no avail.
How can I get the connection working again so that I can push my project to github.
  
*Sourcetree version 2.1.8.0*

  [1]: https://i.stack.imgur.com/pmZMm.png
  [2]: https://i.stack.imgur.com/c52yJ.png

Sourcetree remote: Invalid username or password

With Core 1.1 followed @blowdart&#39;s advice and implemented a custom middleware:

https://stackoverflow.com/a/31465227/29821

It worked like this:

1. Middleware ran. Picked up a token from the request headers.
2. Verified the token and if valid built an identity (ClaimsIdentity) that contained multiple claims which then it added via HttpContext.User.AddIdentity();
3. In ConfigureServices using services.AddAuthorization I&#39;ve added a policy to require the claim that is provided by the middleware.
4. In the controllers/actions I would then use [Authorize(Roles = &quot;some role that the middleware added&quot;)]

This somewhat works with 2.0, except that if the token is not valid (step 2 above) and the claim is never added I get &quot;No authenticationScheme was specified, and there was no DefaultChallengeScheme found.&quot;

So now I&#39;m reading that auth changed in 2.0:

https://docs.microsoft.com/en-us/aspnet/core/migration/1x-to-2x/identity-2x

What&#39;s the right path for me to do the same thing in ASP.NET Core 2.0? I don&#39;t see an example to do truly custom authentication.

ASP.NET Core 2.0 authentication middleware

I would like to check if a user is logged in in an ASP.NET Core 2.0 application in a Razor page. The following code worked in .NET 4.6.1:

    @if (!Request.IsAuthenticated)
    {
        &lt;p&gt;&lt;a href=&quot;@Url.Action(&quot;Login&quot;, &quot;Account&quot;)&quot; class=&quot;btn btn1-success btn-lg&quot; role=&quot;button&quot; area=&quot;&quot;&gt;Sign In &amp;raquo;&lt;/a&gt;&lt;/p&gt;
    }

How can I do this in Core 2.0?

How to check if user is authenticated in Razor pages of .Net Core 2.0

I am trying to post data to database that I have created on mLab and I am getting this error but I don&#39;t know whats going wrong.I also have read previously asked question on this topic but I am not able to solve my error as I am new to this. So here I am posting the code which I am trying to implement and It is taken from this tutorial [https://medium.freecodecamp.com/building-a-simple-node-js-api-in-under-30-minutes-a07ea9e390d2][1]. 

server.js

    const express = require(&#39;express&#39;);
    const MongoClient = require(&#39;mongodb&#39;).MongoClient;
    const bodyParser = require(&#39;body-parser&#39;);
    
    const db = require(&#39;./config/db&#39;);
    
    
    const app = express();
    
    const port = 8000;
    
    app.use(bodyParser.urlencoded({extened:true}));
    
    
    MongoClient.connect(db.url,(err,database) =&gt;{
    	
    	if (err) return console.log(err)
    	require(&#39;./app/routes&#39;)(app,{});
    	app.listen(port,() =&gt; {
    		console.log(&quot;We are live on&quot;+port);	
    	});
    
    })

db.js 

    module.exports = {
      url : &quot;mongodb://JayTanna:Jay12345@ds147510.mlab.com:47510/testing&quot;
    };

index.js 

    const noteroutes = require(&#39;./note_routes&#39;);
    
    module.exports = function(app,db)
    {
    	noteroutes(app,db);
    	
    };

note_routes.js

    module.exports = function(app, db) {
      app.post(&#39;/notes&#39;, (req, res) =&gt; {
        const note = { text: req.body.body, title: req.body.title };
        db.collection(&#39;notes&#39;).insert(note, (err, result) =&gt; {
          if (err) { 
            res.send({ &#39;error&#39;: &#39;An error has occurred&#39; }); 
          } else {
            res.send(result.ops[0]);
          }
        });
      });
    };


  [1]: https://medium.freecodecamp.com/building-a-simple-node-js-api-in-under-30-minutes-a07ea9e390d2

TypeError: db.collection is not a function

I have been trying to load the skeleton of express with `npm install express`. It outputs the following line: 

&gt; npm notice created a lockfile as package-lock.json. You should commit this file. 

What should I do in order to load the template ejs and css engine automatically?

npm notice created a lockfile as package-lock.json. You should commit this file

I am developing an Angular 4 app and I want to apply some global styles.  Following the [tutorial at the angular site][1], I&#39;ve created a &quot;styles.css&quot; file in the root directory of my app, and I&#39;m referring to that stylesheet in the index.html of my app:

    &lt;link rel=&quot;stylesheet&quot; type=&quot;text/css&quot; href=&quot;styles.css&quot;&gt;

The angular app is successfully compiled:

    $ ng serve 
    ** NG Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200 **
    [...]
    webpack: Compiled successfully.

But when I visit http://localhost:4200 in a Chromium browser, the console shows an error at

    GET http://localhost:4200/styles.css 

In a Firefox browser, the error is a bit more explicit:

    GET 
    http://localhost:4200/styles.css [HTTP/1.1 404 Not Found 15ms]
    The resource from &quot;http://localhost:4200/styles.css&quot; was blocked due to MIME type mismatch (X-Content-Type-Options: nosniff).

Both files, index.html and styles.css are located in the root directory of my angular app. 
I&#39;ve tried to get [more info about the problem][2] :

    nosniff
        Blocks a request if the requested type is
    
            &quot;style&quot; and the MIME type is not &quot;text/css&quot;, or
            &quot;script&quot; and the MIME type is not a JavaScript MIME type.

But I don&#39;t understand why it&#39;s bloking the request, since I&#39;ve specified `type=&quot;text/css&quot;` when referencing the stylesheet.



  [1]: https://angular.io/tutorial/toh-pt5#global-application-styles
  [2]: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options

CSS file blocked: MIME type mismatch (X-Content-Type-Options: nosniff)

I am a beginner to `express.js` and I am trying to understand the difference between `res.send` and `res.write` ? 


What is the difference between res.send and res.write in express?

Is it possible, using the [fetch API][1], to set default headers for every single request?   
What I want to do is set an `Authorization` header whenever there is a json web token in the `localStorage`. My current solution is to set the headers with this function: 
&lt;!-- language: lang-js --&gt;

    export default function setHeaders(headers) {
    	if(localStorage.jwt) {
    		return {
    			...headers,
    			&#39;Authorization&#39;: `Bearer ${localStorage.jwt}`
    		}
    	} else {
    		return headers;
    	}
    }

Setting the headers in a fetch request would then look like this: 

    return fetch(&#39;/someurl&#39;, {
			method: &#39;post&#39;,
			body: JSON.stringify(data),
			headers: setHeaders({
				&#39;Content-Type&#39;: &#39;application/json&#39;
			})
		})


But there has to be a better way to do this. I&#39;m currently developing a React/Redux/Express app if that is of any help.
  [1]: https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API/Using_Fetch

Set default header for every fetch() request

I have a rest service written with spring boot. I want to get all endpoints after start up. How can i achieve that? 
Purpose of this, i want to save all endpoints to a db after start up (if they are not already exist) and use these for authorization. These entries will be inject into roles and roles will be used to create tokens.

Content Type	Original Author	Original Content on Stackoverflow
Question	AloeVeraForty	View Question on Stackoverflow
Solution 1 - Authentication	vun	View Answer on Stackoverflow
Solution 2 - Authentication	Evan Erickson	View Answer on Stackoverflow

Difference between Passport and JWT?

Authentication Problem Overview

Authentication Solutions

Solution 1 - Authentication

Solution 2 - Authentication

Error: Cannot find module 'webpack/lib/node/NodeTemplatePlugin'

Google Domain - DNS Configuration for Firebase Hosting - Connect Domain

Attributions