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12.9. Configure SPNEGO Fall Back to Form Authentication
Follow the procedure below to setup a SPNEGO fall back to form authentication.
Procedure 12.2. SPNEGO security with fall back to form authentication
Set up SPNEGO
Refer the procedure described in Section 12.8, “Configure Kerberos or Microsoft Active Directory Desktop SSO for Web Applications”Modify
web.xmlAdd alogin-configelement to your application and setup the login and error pages in web.xml:<login-config> <auth-method>SPNEGO</auth-method> <realm-name>SPNEGO</realm-name> <form-login-config> <form-login-page>/login.jsp</form-login-page> <form-error-page>/error.jsp</form-error-page> </form-login-config> </login-config>Add web content
Add references oflogin.htmlanderror.htmltoweb.xml. These files are added to web application archive to the place specified inform-login-configconfiguration. For more information refer Enable Form-based Authentication section in the Security Guide for JBoss EAP 6. A typicallogin.htmllooks like this:<html> <head> <title>Vault Form Authentication</title> </head> <body> <h1>Vault Login Page</h1> <p> <form method="post" action="j_security_check"> <table> <tr> <td>Username</td><td>-</td> <td><input type="text" name="j_username"></td> </tr> <tr> <td>Password</td><td>-</td> <td><input type="password" name="j_password"></td> </tr> <tr> <td colspan="2"><input type="submit"></td> </tr> </table> </form> </p> <hr> </body> </html>
Note
The fallback to FORM logic is only available in the case when no SPNEGO (or NTLM) tokens are present. As a result, a login form is not presented to the browser if the browser sends an NTLM token.
