Wednesday, 5 December 2012

HTTP Reputed Error Codes

      The following are the reputedly facing HTTP  error codes.

Error Code Error Message Error Description
400 Bad Request The Request sent from the browser could not be understand by server
401 Unauthorized Wrong Username and Password
403 Forbidden/Access Denied The server refused to serve the page. IP restriction and Modsecurity blocking are possible reasons
404 Page Not Found The request page is not available in the server
502 Proxy Server time out Response from Backend application will take more time. Can see in Apache logs
503 Service unavailable Backend application server instance may be down. Can see in Apache logs

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