To change this in IIS, open Internet Services Manager, right-click the website, and select
Properties. Choose the Custom Errors tab. Select 404 (or whatever error needs customization)
from the list and enter a new path.
500 Internal Server Error
This error occurs when something goes awry on the server. This is not a client-side problem,
but rather an issue in the web software, like a server-side script (Perl, PHP, ASP, and
so forth), or in the database. Receiving this error requires immediate action from the
developer??”the problem is not going to fix itself.
In the meantime, the error page for a 500 code can be implemented using the same
Apache and IIS techniques as the 404 page covered in the previous section. The messaging
and technology needs to be handled a bit differently, however. First, the text should
clearly state that there is indeed a problem, but it has nothing to do with the browser or
Internet connection??”assure the user that they are not at fault. In addition, provide a
simple e-mail address for contacting the webmaster. The page should be minimal in design
and built in HTML only. Any scripts appearing in a 500 error page may not work at all if
there is a serious problem in the server software, so avoid them.
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