: Web user authentication methods Is there any method besides using a DB with username and password for authenticating a user?

@Ravi8258870

Oh boy are there! OAuth (Facebook, Google, Twitter), SAML, LDAP, PAM, HTTP Basic, HTTP Client Certificate, IP restriction, 2-Factor authentication, RSA token, biometrics.

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@Ogunnowo487

Depending on how users access the site, you might be able to authenticate simply by their IP address.

There is also HTTP authentication, both basic and digest.

But if you need to differentiate between multiple users then these need to be stored somewhere, and regardless of the method used, this is a "database".

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@Si4351233

You could try using some eternal authentication like OAuth oauth.net/ or Facebook Login developers.facebook.com/docs/facebook-login/login-flow-for-web/v2.1
I believe OAuth still requires SQL usage though.

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