In IIS I can configure my custom error pages.
For each HTTP Error code I can say where to go. Several codes have a number of "sub" codes available. For example 404 has a regular 404, 404;1, 404;2 and so on..
What are they for? When are they returned? Should I make custom pages for these errors? Can I somehow easely configure all code "families" to come to the same page?
401 - Access denied. IIS defines several different 401 errors that indicate a more specific cause of the error. These specific error codes are displayed in the browser but are not displayed in the IIS log:
401.1 - Logon failed.
401.2 - Logon failed due to server configuration.
401.3 - Unauthorized due to ACL on resource.
401.4 - Authorization failed by filter.
401.5 - Authorization failed by ISAPI/CGI application.
401.7 – Access denied by URL authorization policy on the Web server (This error code is specific to IIS 6.0.)
Here is the complete list in the MSDN documentation for IIS 5.0 and 6.0 and for IIS 7.0, 7.5 and 8.0.
If you want to show your visitors or users a nice custom message depending on these subcode, you could do it. But you needn't.
"Substatus" error codes are specific to IIS. They are for "internal" logging purposes - whatever the substatus code, it is the the parent error that gets returned to the client (404.2 gets sent back as 404)
They were implemented specifically to reduce the surface area of attack of IIS whilst still providing sysadmins with a meaningful amount of data. Therefore you actively should not send back specific substatus error messages as you will be opening your IIS installation to possible attack.
Reference
This blog article appears to explain a lot of this. Perhaps it can be of help? At the very least, it explains the meaning of the 'sub-codes'.
Related
I'm developing an application with authentication, and i need to provide a appropriate status code if there is any error when registering an user, for example a database-related error.
I've been researching but i haven't found an appropriate status code.
The purpose of all HTTP errors is to communicate the operation failed. To pick the right HTTP error, you need to know why it failed.
"database-related error" sounds like a server-side bug or problem, so this is likely just a 500.
I have a question regarding SQL Server Reporting Services 2019:
We have received a HTTPS-certificate and added a URL for both Web Service and Web Portal. When we try to access either /Reports or /ReportServer on HTTP we can get through with no problem, but when we try to access on HTTPS then we are met with a logon dialog which will give three attempts at log on before displaying a white page. All attempts at entering a valid combination of user name and password returns a 401 error.
We've tried removing and reinserting all bindings for HTTP, HTTPS, SSL, changing logon mechanism in the config file to use Kerberos, NTLM or a combination of those but nothing works.
Does anyone what the source of this problem might be and how to solve it?
We figured out what the problem was. Authentication issues did not behave the same for HTTP and HTTPS. My test user wasn't a member of the correct user group. Once we gave it "System User" access then we could log in.
I want to use Apache Nifi to track real time tweets
i pasted in my keys correctly but all requests return this error :
19:15:20 UTC ERROR
GetTwitter[id=59b5cb18-017e-1000-a6a2-991a653ec138] Received error HTTP_ERROR: HTTP/1.1 403 Forbidden. Will attempt to reconnect
i dont know where the problem is from.
thank you.
403 Forbidden means the Twitter API is rejecting your request - your access keys could be incorrect, or you might not have the right access rights for the endpoint you're accessing.
The request is understood, but it has been refused or access is not allowed. An accompanying error message will explain why.
Check that your developer account includes access to the endpoint you’re trying to use. You may also need to get your App allowlisted (e.g. Engagement API or Ads API) or sign up for access.
From https://developer.twitter.com/en/support/twitter-api/error-troubleshooting
Make sure you follow the advice from Twitter here and make note of:
With Essential access, you are only able to make requests to the Twitter API v2 endpoints, and not the v1.1 or enterprise endpoints. You are limited to 500K Tweets/month, and unable to take advantage of certain developer portal functionality such as teams and access to additional App environments
There are limits on what you can do with the Essential access level. See here.
If that doesn't help - please include a screenshot of your GetTwitter config and your version of NiFi.
If it raises 403 error while using GetTwitter processor in nifi.
API Key & consumer key aren't only a problem. Change the Twitter endpoint field while configuring the GetTwitter processor from
Filter Endpoint
to
Firehose Endpoint
In the field of twitter endpoint
Probably this will work!!
Whenever I try to add the following endpoint, "http://ws.cdyne.com/phoneverify/phoneverify.asmx", during the Managed API setup process and press the Test button I get an error on the server. ERROR - APIProviderHostObject Error occurred while connecting to backend : "stackOverflow preventing me from showing this link", reason: Connect to ws.cdyne.com:80 timed out
When I try this exact same process on a machine outside of our proxy it works fine. I have gone into the axis2.xml file and added proxy information and even went as far as installing cntlm and setting the proxy to localhost - same error.
I can browse to the above link just fine on this machine.
My environment is Windows 10.
I assume you talk about clicking the Test button when providing Backend Endpoint in API publisher.
The way that Test button works at the moment (as far as I understand) is that it invokes HTTP HEAD method on the endpoint provided (because according to RFC 2616, "This method is often used for testing hypertext links for validity, accessibility, and recent modification.")
Then it checks response. If response is valid or 405 (method not allowed), then the URL is marked as Valid.
Thus sometimes, if backend is not properly following RFC, you might get otherwise working URLs declared as Invalid during the test because of that improper HEAD response evaluation. Obviously, this is just a check for your convenience and you can ignore the check if you know the endpoint works for the methods and resources you need it to work.
So my advice would be to try ignoring the Test and just finishing setting up and publishing the API.
P.S. I am checking it on WSO2 API Cloud but behavior is identical to downloadable API Manager.
There are quite a lot of threads and questions about this issue. However, non-of them helped me.
I have got an MVC4 app running on IIS8 without any probblem. I need to move this app to Windows 2012 R2 Server which has IIS8.5.
Whichever user I give access to folder, I still get following exception.
HTTP Error 401.0 - Unauthorized
You do not have permission to view this directory or page.
Most likely causes:
The authenticated user does not have access to a resource needed to process the request.
Here is the error trace screenshot
Regarding IIS Site Setup, Anonymous Authentication and Forms Authentication are enabled.
Lastly, I have given Server\IIS_USERS, App Pool Account, IUSR, Server\Users readn and write access to make it work, but still same error.
Could anyone help me with this please?
Thanks.