Http Error 401 Unauthorized In Sap

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Error:

ERROR: The HTTP request is unauthorized with client authentication scheme 'Anonymous'. The authentication header received from the server was 'Basic realm='XISOAPApps' In the ICM traces, you can find examples of the below error: HTTP response (raw): HTTP/1.1 401 Unauthorized server: SAP NetWeaver Application Server 7.49 / AS Java 7.50.

At other times and in other browsers, you might get a slightly less friendly warning that’s just a blank page with a “401 Authorization Required” message. Error: KPRO Retrieval fails with HTTP error 401 Unauthorized (Certificate Exchange) This could mean that the SAP 3D Visual Enterprise Generator does not have access to the SAP DMS system so it cannot obtain the KPRO URL to download original files.

Http Error 401 Unauthorized In Sap Query

FAIL: HTTP error, HTTP/1.1 401 Unauthorized: This error occurred when I am trying to start or stop HANA Database.

Solution 1:

I restarted SUSE Linux OS and this issue is resolved. I am able to STOP or START HANA Database

  • SAPControl Fails with HTTP 401 Unauthorized Error.
  • FAIL: HTTP Error, HTTP/1.1 401 Unauthorized: Solution. Stop SAP instance and cleanipc. Sometimes You will also need to kill old processes on sidadm.

Solution 2:

Go to /tmp Directory

Find .sapstream5xx13 file

Delete this file

Logoff and Login and try

Solution 3:

Check this link if it helps you.

https://scn.sap.com/thread/3213834

https://wiki.scn.sap.com/wiki/display/TechTSG/(ACC)+SAPControl+Fails+with+HTTP+401+Unauthorized+Error

Error

Solution 4:

Http Error 401 Unauthorized In Sap

Http Error 401 Unauthorized In Sap Access

Go to /tmp directory.

rename sapstream5xx13 file

restart sap control service below below command.

sapcontrol -prot NI_HTTP -nr <xx> -function Restart

Now Start SAP

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In general, the HTTP 401 'Unauthorized' error indicates anauthenticationerror, and not - as the name suggests - an authorization error. In ICF this indicates that the configured logon procedures (SICF tab 'Logon Data') have failed, and we have a logon error situation. The browser may also issue a Basic Authentication popup where the logon data can be entered. For more information have a look at the following Internet Communication Framework wiki page.

The logon process can be caught in the ABAP workprocess trace, please have a look at the following blog, how to correctly configure it for our needs. Alternatively you can also use test report SEC_TRACE_ANALYZER, as it is described in NOTE 2181120 - Tracing and troubleshooting security events in http communication with the AS ABAP

User/Password authentication

AUTHORIZATION http header is not allowed and exposed

The first GetServerInfo is only for authentication, the OPTIONS calls only requests http headerauthorizationandGETmethod. The authorization header contains the credentials to authenticate with the server, as it is described in the troubleshooting page. If the authorization header is not allowed and exposed, authentication is not possible, therefore HTTP 401 error code sent back by the server.

Since this is the first call, this is the first to be failed as well, if CORS is in general disabled on the server side. This can happen if the Mode of Cross-origin Resource Sharing is not set to Active Check, but Logging for example in UCONCOCKPIT.

Http Error 401 Unauthorized Signature Invalid Sap

icm/HTTPS/verify_client

If ICM parameter icm/HTTPS/verify_client is set to 1 (default setting), then the server requests a certificate from the client. If the client does not send a certificate, authentication is carried out by another method, for example, basic authentication. If in SAC, basic authentication is used (user/Password), client sends the User/Password in Base64 encoded format only, no client certificate, as it is mentioned in this wiki page.

The logon in general is done based on a predefined order of the possible logon methods. This can be seen either in the ABAP workprocess trace, or on the correspondent SICF service's Logon Data tab (to check it, set the Procedure to 'Alternative Logon Procedure', as a result the logon order list will appear on the bottom side of the tab).

Since SAC does not send client certificate, there will be surely a failed logon attempt on the server side, which can be also seen in the ABAP workprocess trace.

Http Error 401 Unauthorized In Sap

If another logon attempt is sent to the server (for example user click 'OK' again in SAC), the logon could be successful as the attempt triggers the next available logon method which is Basic. In order to get rid of the HTTP 401 http error code to be sent to the browser, one can configure sicf service /sap/bw/ina to try to 'Use All Logon Procedure' already under the hood.

Http Error 401 Unauthorized In Sap

If ICM parameter icm/HTTPS/verify_client is set to 0, no certificate is required and the server does not ask for one, so no additional setting is needed.

If ICM parameter icm/HTTPS/verify_client is set to 2,a client must send a valid certificate to the server, otherwise access is denied. This does not happen in case of User/password authentication is SAC, so with the mentioned setting, the logon cannot be successful.

Http Error 401 Unauthorized Access Denied Sap

icm/HTTP/block_options_request

The note 1094249 - Configurable response to HTTP method OPTIONS introduced the parameter icm/HTTP/block_options_request. If icm/HTTP/block_options_request = true is set, all OPTIONS requests lead to HTTP 503 Not Implemented, or 401 Unauthorized error code.

The following script has the same effect in the ICM rewrite script, or in the Web Dispatcher modification rule:

If %{REQUEST_METHOD} stricmp 'OPTIONS'

RegForbiddenURL ^/(.*)

SSO

Is SAML configured at all

Check in SICF at service/default_host/sap. The tab logon data must have analternative logon procedure with SAML!

When invoking a web-based service the server checks which authentication methods are configured for that particular service (see t-code SICF) and checks whether there's an intersection between that set and the set of authentication methods recorded in theSecurity Context; if the intersection is not empty, access is granted - otherwise the system triggers a re-authentication (i.e. validating a new type of credentials).

Hence SAML must be allowed for all services which you want to access with a session which has been established with SAML,