Http Error Codes 401 403
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Status codes 301 Moved Permanently 302 Found 303 See Other 403 Forbidden 404 Not Found 451 Unavailable For Legal Reasons v t e A web server may or may not return a 403 http 402 Forbidden HTTP 403 in response to a request from a client for a web 403 http page or resource to indicate that the server can be reached and understood the request, but refuses to take any http 404 further action. Status code 403 responses are the result of the web server being configured to deny access, for some reason, to the requested resource by the client. A typical request that may http 400 receive a 403 Forbidden response is a GET for a web page, performed by a web browser to retrieve the page for display to a user in a browser window. The web server may return a 403 Forbidden status for other types of requests as well. The Apache web server returns 403 Forbidden in response to requests for url paths that correspond to filesystem directories, when directory listings
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have been disabled in the server and there is no Directory Index directive to specify an existing file to be returned to the browser. Some administrators configure the Mod proxy extension to Apache to block such requests, and this will also return 403 Forbidden. Microsoft IIS responds in the same way when directory listings are denied in that server. In WebDAV, the 403 Forbidden response will be returned by the server if the client issued a PROPFIND request but did not also issue the required Depth header, or issued a Depth header of infinity.[1] Contents 1 Difference from status "401 Unauthorized" 2 403 substatus error codes for IIS 3 See also 4 References 5 External links Difference from status "401 Unauthorized"[edit] Status codes 401 (Unauthorized) and 403 (Forbidden) have distinct meanings. A 401 response indicates that access to the resource is restricted, and the request did not provide any HTTP authentication. It is possible that a new request for the same resource will succeed if authentication is provided. The response must include an HTTP WWW-Authenticate header to prompt the user-agent to provide credentials. If valid credentials are not provided via HTTP Authorization, then 401 should not be used.[2] A
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Learn more about Stack Overflow the company Business Learn more about hiring developers or http 422 posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow http 409 Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up 403 Forbidden vs 401 Unauthorized HTTP responses up vote https://en.wikipedia.org/wiki/HTTP_403 1103 down vote favorite 284 For a web page that exists, but for which a user that does not have sufficient privileges, (they are not logged in or do not belong to the proper user group), what is the proper HTTP response to serve? 401? 403? Something else? What I've read on each so far isn't very clear on the difference between the two. What use cases http://stackoverflow.com/questions/3297048/403-forbidden-vs-401-unauthorized-http-responses are appropriate for each response? http-headers http-status-code-403 http-status-codes http-status-code-401 http-response-codes share|improve this question edited Nov 17 '15 at 13:24 MK-rou 107 asked Jul 21 '10 at 7:21 VirtuosiMedia 15.6k1678124 8 401 'Unauthorized' should be 401 'Unauthenticated', problem solved ! –Christophe Roussy May 17 at 12:33 3 Wow. The answers below are ridiculously all over the map. It seems that the correct answer is undefined for non-HTTP authentication. –Joe Lapp Jun 7 at 19:30 add a comment| 11 Answers 11 active oldest votes up vote 1675 down vote accepted A clear explanation from Daniel Irvine: There's a problem with 401 Unauthorized, the HTTP status code for authentication errors. And that’s just it: it’s for authentication, not authorization. Receiving a 401 response is the server telling you, “you aren’t authenticated–either not authenticated at all or authenticated incorrectly–but please reauthenticate and try again.” To help you out, it will always include a WWW-Authenticate header that describes how to authenticate. This is a response generally returned by your web server, not your web application. It’s also something very temporary; the server is asking you to try again. So, for authorization I use the 403 Forbidden response. It’s permanent, it’s tied to my application
Forbidden RESTful Requests: 401 vs. 403 vs. 404 By Ben Nadel on July 19, 2012 Tags: ColdFusion I don't have a tremendous amount of experience building RESTful APIs; so, it's not https://www.bennadel.com/blog/2400-handling-forbidden-restful-requests-401-vs-403-vs-404.htm always clear which HTTP status code in the 4xx block I should use http://www.buggybread.com/2012/11/http-error-codes-401-access-denied-403.html when refusing to fulfill an incoming resource request. One tricky scenario that I've had to code against recently is the request for a properly formed, valid resource of which the authenticating user doesn't have permissions to view. Image that we have two users in our system: Sarah, with ID 4, and Tricia, with ID 37. http error Now, imagine that Sarah makes an authenticated request to view Tricia's profile resource:GET /users/37/profile HTTP/1.1Authorization: Basic YmVuK2F206dGVzdA==Accept: application/jsonHere, Sarah is using Basic Authorization to identify herself as Sarah; however, she's making a request to another user's profile (Tricia's). For sake of argument, let's say that in this API, a user can only view his or her own profile. What HTTP status code should I return?The three status codes that http error codes felt the most appropriate are:401 - Unauthorized403 - Forbidden404 - Not FoundIn my mind, the use of each of these three HTTP status codes could be justified. Sarah is not authorized to view Tricia's profile (401); Sarah is forbidden from viewing someone else's profile (403); and, Sarah simply cannot see resources that she's not allowed to view (404). The initial problem that I had with using either of the HTTP status codes, 401 or 403, was that I felt like it was exposing secure information. Both of those responses sort of say, "Yeah, that resource exists, but you can't see it." My problem with this is that it confirms that those resources exist. When you ask a Doctor if he treats a particular patient (at least in Law & Order - wicked awesome show!), he will often say something to the effect of, "Officer, you know I can neither confirm nor deny having a patient as it would be a breach of doctor-patient confidentiality." This is how I feel about 401 and 403 in this particular type of resource request - I don't want to confirm or deny its existence. Then, one day, when I was reading over the description of the 403 F
SCJP Class List New in Java 8 New in Java 7 Java Exceptions Spring Exceptions New in Spring 4.1 New in Spring 4.0 Java Enums Java 8 Lambda Java 8 java.time Best Of Java Discussion Forum Humor Classes Search Subscribe Help us update the repository. Were you asked any of these questions in your recent interview ? More questions HTTP Error Codes - 401 Access Denied , 403 Forbidden , 404 Not Found , 500 Internal Server Error HTTP Error Code and their definition 100 - Continue. 101 - Switching protocols. 200 - OK. The client request has succeeded. 201 - Created. 202 - Accepted. 203 - Non-authoritative information. 204 - No content. 205 - Reset content. 206 - Partial content. 207 - Multi-Status (WebDay). 301 - Moved Permanently 302 - Object moved. 304 - Not modified. 307 - Temporary redirect. 400 - Bad request. 401 - Access denied. 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. 403 - Forbidden. 403.1 - Execute access forbidden. 403.2 - Read access forbidden. 403.3 - Write access forbidden. 403.4 - SSL required. 403.5 - SSL 128 required. 403.6 - IP address rejected. 403.7 - Client certificate required. 403.8 - Site access denied. 403.9 - Too many users. 403.10 - Invalid configuration. 403.11 - Password change. 403.12 - Mapper denied access. 403.13 - Client certificate revoked. 403.14 - Directory listing denied. 403.15 - Client Access Licenses exceeded. 403.16 - Client certificate is untrusted or invalid. 403.17 - Client certificate has expired or is not yet valid. 403.18 - Cannot execute requested URL in the current application pool. This error code is specific to IIS 6.0. 403.19 - Cannot execute CGIs for the client in this application pool. This error code is specific to 403.20 - Passport logon failed. This error code is specific to IIS 6.0. 404 - Not found. 404.0 - (None) - File or directory not found. 404.1 - Web site not access