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What is 404 Not Found nginx Error & How To Fix It

Updated on October 31, 2013

Are you getting annoyed by facing Error 404 every day on your web browser's?

Can't find the website you are searching for?

I know that 404 Error can be really annoying at times but i can surely help you to fix such errors. I will give you simple explanation of this error, the causes of such error & ways to fix it. Error 404 is quite easily solved if you know how. So read on and I’ll tell you what you need to know. So, do enjoy reading this hub & getting your errors removed. All the Best!!

404 Html error not found
404 Html error not found | Source

Introduction to HTTP Error 404 Not Found -

Detail
The Request sent by you to open a page where you want to have access on your net was correct, but simply the server was not able to provide the access to the resource specified by your URL. This is similar to a letter coming back to you which you sent by post stating that the Address was Wrong or Unreachable. It is very annoying but can be corrected.
This is a very common error message which you see almost daily on your web browser. This Error is shown because you are trying to open a URL which has a valid domain but Invalid page.

Main Causes of 404 Internal error-

 
Causes
Cause No. 1
This code is an famous internal error or we can say it’s a HTTP status code which indicates that the page you are trying to access over the web is not found by your server. The cause may be that the page doesn’t exist anymore or it is presently unavailable.
Cause No. 2
There are many causes or reasons due to which you must be seeing this error. But one of the most common one is that the website you are trying to load has shifted its page but without redirecting the old URL with the newer one. Then you will see the 404 error message instead of seeing the new page.
Conclusion
In simple words, the 404 error is indicating that either you have typed your URL incorrectly or the website or the page you are searching has been shifted.
404 html error not found
404 html error not found | Source

Ways to fix this error-

Ways to fix error
Firstly, you need to recap and check whether you have typed the URL correctly or not. It’s always worth checking that you typed in the correct URL because most people immediately give up when this error comes when it could just be caused by a simple spelling mistake. Some pages have a long & very complex URL with difficult words. So its natural to type that URL wrongly. So before going ahead just check out tis mistake & see whether 404 error still persists or not.
Sometimes if the page has been moved to another location, a link to the new address will appear on your browser. So look out for this link as well. If there are no links to the page you want, then move on to the next step.
You need to Retry the web page by pressing F5, clicking the refresh/reload button, or trying the URL from the address bar again.
Move up one directory level at a time in the URL until you find something.
Another way of fixing this error is to search for this page at a popular search engine like Google. It is quite possible that you have simply have the entirely wrong URL in which case a quick search over search engine may prove to be helpful.
Clear your browser's cache if you have any indication that the 404 Not Found message might just be yours. For example, if you can reach the URL from your phone but not from your tablet, clearing the cache on your tablet's browser might help.
Most of the pages are working on web servers & these servers can face technical problems. If the servers are down when you try to access the page, the page won’t appear and you’ll encounter error 404. To check if the server you’re trying to connect to is up and running you can do a simple test to make sure. Just go to your Windows Start Button and then at All Programs, then Click on Accessories, and then open your Command Prompt. In command prompt, type ping [space] [the domain name]. If the server for that page is down, you would get a message saying that there is no response from the server. If this is the case, the server might be experiencing some malfunction and you can try checking the site again later.
You might also consider clearing your browser's cookies, or at least the one(s) involved with the website in question, if clearing the cache didn't work.
At the end, if nothing of these ways helps you to remove your error, I recommend you to directly contact the website. They will explain you & tell you that exact reason for this error.If they've moved the page, and are generating 404's instead of redirecting visitors to the new page, they might be very happy to hear from you.

Using A Truly Reliable And Effective Registry Cleaner To Fix Error 404

In case the above points just blowed you off i.e. in case you are not much tech savvy then I recommend you Registry cleaner to fix all your errors. this software is really user friendly & used my many of those who wanted to fix out all the errors. It is a highly rated registry cleaning software which is specifically used for removing such Internal errors.


How To Fix 404 Page Not Found Errors

Type on keyboard & fix this error
Type on keyboard & fix this error | Source

List of Status Codes

Code
Meaning
Description
100
Continue
This Error is displayed when the Url confirms that the client about his arrival at the first part of the request and it informs to go forward with the rest part of the request & to ignore if the request has been fulfilled
101
Switching Protocols
This Error Informs you that the server which is using the protocols to that specify the Upgrade message header field while the connection is being processed.
200
OK
Standard response for successful requests
201
Created
This Error states that Request fulfilled and new resource created
202
Accepted
Request accepted, but not yet processed
203
Non-Authoritative Information
Returned meta information was not the definitive set from the origin server.
204
No Content
Request succeeded without requiring the return of an entity-body
205
Reset Content
Request succeeded but require resetting of the document view that caused the request
206
Partial Content
Partial GET request was successful
300
Multiple Choices
Requested resource has multiple choices at different locations.
301
Moved Permanently
Resource permanently moved to a different URL.
302
Found
Requested resource was found under a different URL but the client should continue to use the original URL.
303
See Other
Requested response is at a different URL and can be accessed only through a GET command.
304
Not Modified
Resource not modified since the last request.
305
Use Proxy
Requested resource should be accessed through the proxy specified in the location field.
306
No Longer Used
Reserved for future use
307
Temporary Redirect
Resource has been moved temporarily to a different URL.
400
Bad Request
Syntax of the request not understood by the server.
401
Not Authorized
Request requires user authentication
402
Payment Required
Reserved for future use.
403
Forbidden
Server refuses to fulfill the request.
404
Not Found
Document or file requested by the client was not found.
405
Method Not Allowed
Method specified in the Request-Line was not allowed for the specified resource.
406
Not Acceptable
Resource requested generates response entities that has content characteristics not specified in the accept headers.
407
Proxy Authentication Required
Request requires the authentication with the proxy.
408
Request Timeout
Client fails to send a request in the time allowed by the server.
409
Conflict
Request was unsuccessful due to a conflict in the state of the resource.
410
Gone
Resource requested is no longer available with no forwarding address
411
Length Required
Server doesn't accept the request without a valid Content-Length header field.
412
Precondition Failed
Precondition specified in the Request-Header field returns false.
413
Request Entity Too Large
Request unsuccessful as the request entity is larger than that allowed by the server
414
Request URL Too Long
Request unsuccessful as the URL specified is longer than the one, the server is willing to process.
415
Unsupported Media Type
Request unsuccessful as the entity of the request is in a format not supported by the requested resource
416
Requested Range Not Satisfiable
Request included a Range request-header field without any range-specifier value
417
Expectation Failed
Expectation given in the Expect request-header was not fulfilled by the server.
422
Unprocessable Entity
Request well-formed but unable to process because of semantic errors
423
Locked
Resource accessed was locked
424
Failed Dependency
Request failed because of the failure of a previous request
426
Upgrade Required
Client should switch to Transport Layer Security
500
Internal Server Error
Request unsuccessful because of an unexpected condition encountered by the server.
501
Not Implemented
Request unsuccessful as the server could not support the functionality needed to fulfill the request.
502
Bad Gateway
Server received an invalid response from the upstream server while trying to fulfill the request.
503
Service Unavailable
Request unsuccessful to the server being down or overloaded.
504
Gateway Timeout
Upstream server failed to send a request in the time allowed by the server.
505
HTTP Version Not Supported
Server does not support the HTTP version specified in the request.

That's it. Hope you enjoyed reading this hub. Thanks a lot for the time you have invested in reading my hub. Do leave your feedback below along with your valuable comment. Cheers!!!!

All the Best from my side
All the Best from my side | Source

Reasons of 404 Error

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    • gags3480 profile image
      Author

      GAGANPREET SINGH BHATIA 4 years ago from Kanpur, India

      This is a very common error & this hub will surely help you. Thx for stopping by.

    • Kathryn Stratford profile image

      Kathryn 4 years ago from Manchester, Connecticut

      I browsed through this, and will be back to look at it in more depth. I see this message on occasion, so this is a very interesting hub! Thank you for sharing it with us.

    • gags3480 profile image
      Author

      GAGANPREET SINGH BHATIA 4 years ago from Kanpur, India

      Great to hear that this helped you. Thx for stopping by.

    • moonlake profile image

      moonlake 4 years ago from America

      Interesting I never knew all of this. I get that error pretty often. Voted up.

    • gags3480 profile image
      Author

      GAGANPREET SINGH BHATIA 4 years ago from Kanpur, India

      Thanks a lot. Great that you liked it.

    • Anonymous00 profile image

      Anonymous00 4 years ago

      Good stuff.

    • gags3480 profile image
      Author

      GAGANPREET SINGH BHATIA 4 years ago from Kanpur, India

      Great that you liked this. Thx for stopping by.

    • preweb profile image

      preweb 4 years ago from UK

      nice & helpful hub!

    • gags3480 profile image
      Author

      GAGANPREET SINGH BHATIA 4 years ago from Kanpur, India

      Thx for the comment Rajan Sir. Pleased that you liked it.

    • rajan jolly profile image

      Rajan Singh Jolly 4 years ago from From Mumbai, presently in Jalandhar,INDIA.

      Interesting and useful, Gagan. Thanks.

    • gags3480 profile image
      Author

      GAGANPREET SINGH BHATIA 4 years ago from Kanpur, India

      Great that this helped you. Thanks for the feedback.

    • hawaiianodysseus profile image

      Hawaiian Odysseus 4 years ago from Southeast Washington state

      I've seen this error message quite a few times. Now I know what to do. Thanks!

      Joe