Bluetrait

404 errors are the errors you receive when the url you entered could not be found.

Apache's default error message is as follows:

Not Found

The requested URL /someurl was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
Apache Server at servername Port 80

where as IIS/IE one is as follows:

The page cannot be found
The page you are looking for might have been removed, had its name changed, or is temporarily unavailable.

--------------------------------------------------------------------------------

Please try the following:

If you typed the page address in the Address bar, make sure that it is spelled correctly.

Open the servername home page, and then look for links to the information you want.
Click the Back button to try another link.
Click Search to look for information on the Internet.

HTTP 404 - File not found
Internet Explorer

Now if you are running apache and don't have a custom 404 page, Internet explorer will highjack it and place the one as seen above. And it isn't all that nice. No one likes the IE 404 page. So if you're running a website with apache make sure you have your own 404 page with a nice link back to your home page.

Apache also offers a module called speling (heh) that will try and find a page similar to the one in which you entered (if is isn't found). It is pretty cool although needs to be setup.