expressjsHow can I implement Kerberos authentication in an Express.js application?

Kerberos authentication can be implemented in an Express.js application using the node-kerberos package.

First, install the package using npm:

npm install node-kerberos

Then, configure the Kerberos service in the application and create a KerberosStrategy object:

var kerberos = require('node-kerberos');

// Configure the Kerberos service
var service = {
  host: 'your-kerberos-host',
  port: 88,
  path: '/kerberos',
  service: 'HTTP'
};

// Create a new KerberosStrategy
var kerberosStrategy = new kerberos.KerberosStrategy(service);

Finally, use the KerberosStrategy to authenticate the user:

app.get('/login', kerberosStrategy.authenticate(), function(req, res) {
  // Authentication successful
  res.send('Authentication successful!');
});

The KerberosStrategy object can also be configured to use a custom callback function:

var kerberosStrategy = new kerberos.KerberosStrategy(service, function(username, done) {
  // Custom authentication logic here
  done(null, user);
});

Helpful links

• node-kerberos
• Express.js Authentication

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