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web server error messages |
Errors on the Internet, and those annoying error messages, occur
quite frequently -- and can be quite frustrating, especially if you
do not know the difference between a 404 error and a 502 error.
Many
times they have more to do with the Web servers you're trying to
access rather than something being wrong with your computer.
Here is
a list of error messages you might encounter while surfing the Web
and their respective meanings to help you figure out just what the
problem is.
1. 400 Bad File Request
2. 401 Unauthorized
3. 403 Forbidden/Access Denied
4. 404 File Not Found (click
for example)
5. 408 Request Timeout
6. 500 Internal Error
7. 501 Not Implemented
8. 502 Service Temporarily Overloaded
9. 503 Service Unavailable
10. Connection Refused by Host
11. File Contains No Data
12. Bad File Request
13. Failed DNS Lookup
14. Host Unavailable
15. Unable to Locate Host
16. Network Connection Refused by the Server
400 Bad File Request
Usually means the syntax used in the URL is incorrect (e.g.,
uppercase letter should be lowercase letter; wrong punctuation
marks).
401 Unauthorized
Server is looking for some encryption key from the client and is not
getting it. Also, wrong password may have been entered. Try it
again, paying close attention to case sensitivity.
403 Forbidden/Access Denied
Similar to 401; special permission needed to access the site -- a
password and/or username if it is a registration issue. Other times
you may not have the proper permissions set up on the server or the
site's administrator just doesn't want you to be able to access the
site.
404 File Not Found
(click
for example)
Server cannot find the file you requested. File has either been
moved or deleted, or you entered the wrong URL or document name.
Look at the URL. If a word looks misspelled, then correct it and try
it again. If that doesn't work backtrack by deleting information
between each backslash, until you come to a page on that site that
isn't a 404. From there you may be able to find the page you're
looking for.
408 Request Timeout
Client stopped the request before the server finished retrieving it.
A user will either hit the stop button, close the browser, or click
on a link before the page loads. Usually occurs when servers are
slow or file sizes are large.
500 Internal Error
Couldn't retrieve the HTML document because of server-configuration
problems. Contact site administrator.
501 Not Implemented
Web server doesn't support a requested feature.
502 Service Temporarily Overloaded
Server congestion; too many connections; high traffic. Keep trying
until the page loads.
503 Service Unavailable
Server busy, site may have moved, or you lost your dial-up Internet
connection.
Connection Refused by Host
Either you do not have permission to access the site or your
password is incorrect.
File Contains No Data
Page is there but is not showing anything. Error occurs in the
document. Attributed to bad table formatting, or stripped header
information.
Bad File Request
Browser may not support the form or other coding you're trying to
access.
Failed DNS Lookup
The Domain Name Server can't translate your domain request into a
valid Internet address. Server may be busy or down, or incorrect URL
was entered.
Host Unavailable
Host server down. Hit reload or go to the site later.
Unable to Locate Host
Host server is down, Internet connection is lost, or URL typed
incorrectly.
Network Connection Refused by the Server
The Web server is busy.
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