To address your issue with the redirection URL in your self-hosted Ory Kratos instance, you need to configure the

selfservice.flows.verification.ui_url

setting in your Kratos configuration. This setting determines where Kratos redirects for verification flows. Here's how you can override this behavior: 1. In your Kratos configuration file (usually

kratos.yml

), add or modify the following section:

yaml selfservice:   flows:     verification:       ui_url: <http://localhost:9080/your-verification-ui-path>

Replace

<http://localhost:9080/your-verification-ui-path>

with the actual URL where your verification UI is hosted. 2. You can also set this configuration using an environment variable:

SELFSERVICE_FLOWS_VERIFICATION_UI_URL=<http://localhost:9080/your-verification-ui-path>

By setting this configuration, you're telling Kratos where to redirect for verification flows, which should prevent the unexpected redirect to

localhost:4433

. The reason you're seeing a redirect to

localhost:4433

is likely because this is the default value when the

ui_url

is not explicitly set in your configuration. Kratos uses this as a fallback URL for the verification UI. For more details on configuring the verification flow UI URL, you can refer to the [Ory Kratos Fallback Documentation](https://www.ory.sh/docs/kratos/fallback/verification). Remember to restart your Kratos instance after making changes to the configuration for them to take effect.

Based on the configuration you've provided, it seems you have already set up the verification UI URL correctly. The issue you're experiencing with the redirection to port 4433 instead of 4455 might be related to other parts of your Ory Kratos configuration or the setup of your reverse proxy. Let's review a few potential solutions: 1. Check your base URL configuration: Make sure your

serve.public.base_url

is set correctly in your Kratos configuration. It should point to the URL where Kratos is publicly accessible. For example:

yaml    serve:      public:        base_url: <http://127.0.0.1:4455/>

This is mentioned in the [Ory Kratos deployment guide](https://www.ory.sh/docs/kratos/guides/deploy-kratos-example#configure-user-interface). 2. Verify your Nginx configuration: If you're using Nginx as a reverse proxy, ensure that it's configured correctly to forward requests to Kratos. Here's an example of how it might look:

nginx    location /auth {      rewrite /auth/(.*) /$1  break;      proxy_pass <http://127.0.0.1:4455;>      proxy_redirect          off;      proxy_set_header        Host            $host;      proxy_set_header        X-Real-IP       $remote_addr;      proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;    }

This is based on the configuration example in the [Ory Kratos deployment guide](https://www.ory.sh/docs/kratos/guides/deploy-kratos-example#configure-user-interface). 3. Check for any overriding configurations: Make sure there are no other configuration settings or environment variables that might be overriding your

ui_url

setting. 4. Verify the Ory Oathkeeper configuration: If you're using Ory Oathkeeper as an Identity and Access Proxy, ensure that it's configured correctly. The [Ory Kratos Zero Trust guide](https://www.ory.sh/docs/kratos/guides/zero-trust-iap-proxy-identity-access-proxy#running-ory-kratos-and-the-ory-oathkeeper-identity-and-access-proxy) provides information on how to set this up. If you've verified all these settings and the issue persists, it might be helpful to review your entire Kratos configuration and the setup of any reverse proxies or identity access proxies you're using. The unexpected redirection could be happening at a different layer of your infrastructure. Remember to restart your Kratos service after making any configuration changes for them to take effect.