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Knowledge
When using a Reverse Proxy the Qlik NPrinting SAML Authentication is Broken
Article Number: 000089315 | Last Modified: 2019/11/18Description
Qlik NPrinting SAML Authentication works successfully, however, when introducing a Reverse Proxy it no longer works correctly.
Environment
Qlik NPrinting September 2019Cause
The issue is caused by the "Reverse Rewrite Host in Response Headers" flag in the IIS Reverse Proxy Configuration.
When the setting is enabled the Reverse Proxy will rewrite the Host Name in the Location Header of a Redirect Response to the original Host. Since Qlik NPrinting uses http request redirects to send SAML requests to the IdP, SAML Authentication will not work when the Reverse Proxy is configured that way.
When the setting is enabled the Reverse Proxy will rewrite the Host Name in the Location Header of a Redirect Response to the original Host. Since Qlik NPrinting uses http request redirects to send SAML requests to the IdP, SAML Authentication will not work when the Reverse Proxy is configured that way.
Resolution
- Open Internet Information Services (IIS) Manager.
- In the Connections pane, select the server.
- In the server pane, double-click Application Request Routing Cache.
- In the Actions pane, click Server Proxy Settings.
- On the Application Request Routing page, deselect Reverse rewrite host in response headers.
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