Learn how to set up Kerberos behind a reverse proxy like Nginx. Our Nginx Support team is here to help you with your questions and concerns.

Nginx Kerberos Reverse Proxy | Guide

Kerberos authentication is one of the most reliable methods for safe access to applications and services. However, implementing Kerberos behind a reverse proxy like Nginx is a difficult task that needs careful attention to detail.

Fortunately, our experts are here to help you out.

1. First, we have to install and configure Kerberos.
2. Then, we must create a service principal. It is the secret key that will grant access to our application or service using Kerberos authentication.
3. Now, it is time to install and configure Nginx.
4. Next, we must configure Nginx to listen on the correct ports and handle incoming requests with ease.
5. After that, we have to enable Nginx to support SPNEGO. This involves enabling the ngx_http_auth_spnego_module in Nginx.
6. Next, we have to configure Nginx to use the Kerberos keytab file, thereby granting access to the service principal’s logins.
7. Then, it is time to set the auth_gss directive in our Nginx configuration.
8. We have to adjust our server’s firewall settings to allow the necessary ports for Kerberos authentication to flow smoothly.
9. Now, it is time to start Nginx and test access our application through the reverse proxy.

At the end of the day, with Kerberos authentication standing behind our Nginx reverse proxy, our applications and services are safe.

Let us know in the comments if you need further help with implementing Kerberos behind a reverse proxy like Nginx.

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Conclusion

In summary, our Support Techs demonstrated how to implement Kerberos behind Nginx.