|
Common
Apache Server Error Codes
|
ERROR
CODE
|
MEANING
|
| 304 |
see below |
| 400 |
Bad Request |
| 401 |
Authorization Required |
| 403 |
Forbidden -- Often occurs when
a CGI script is invoked, whose file permission was not set to "executable". |
404
(the most
common) |
Not Found -- no web page exists
at this address. (Perhaps the file was renamed or deleted.) |
| 500 |
Internal Server Error -- Often
occurs when there is a programming bug or a settings problem in
a CGI script |
What
Does a 304 Error Code Mean?
The 304 error is somewhat misleading. The
Apache Webserver logs it as an error, but it's really this. Someone
visits your site today, and tomorrow, they go back to your site. When
they do, their local system connects with your server, and then the
server tells the local machine that the
information (html files, images, etc) are already in the cache of that
users system, and the information is shown from the cache rather than
the server itself. Apache logs this as the 304 error because it hasn't
been modified since the last time that the user has accessed that part
of your site.
Thus this error is generally the online "good" error a user could get
because this means that they have been to your site previously and have
returned.
Custom
Handling of "404 Missing Page" Errors
If you have your
own domain name, then whenever someone types in a web address on your
site for which there is no actual page, they will receive a generic
404 Missing Page error message.
You can customize
the error page that comes up. Simply create a file named, "missing.html",
and place it on your top-level directory. Our server will automatically
display your custom page in place of the generic error message page.
When would someone
enter a web address that has no corresponding web page? Here are some
common cases:
- Someone bookmarked
a page on your site, and you've since changed your site, and renamed
or deleted some of your web pages.
- A search engine
indexed some of the pages on your site, and you've since changed your
site, and renamed or deleted some of your web pages.
Example. Make
"missing.html" be a copy of the front page of your site. Note:
If you do this make sure that you update your missing.html file every
time you update your front page!
Suggestions.
We recommend that you use absolute addressing (e.g., <a href
= "http://www.yourdomain.com/page2.html">) rather than
relative addressing (e.g., <a href = "../page2.html">)
for all references made on your "missing.html" page. If the
missing page is in a subdirectory of your site, our server will display
your missing.html page as though it were located on that subdirectory,
which would screw up all the relative addressing references, creating
missing images, broken links, etc.
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