This means that a site or URL that you have requested has been restricted
by the person putting the page(s) up. There are several ways of
restricting access to a website/pages. They may be protected by passwords
or by local network access restrictions, such as only allowing certain IP
addresses access to that particular piece of information.
This is a generic error message that is sent by the webserver when you
attempt to access a file or directory that has been configured to be used,
but not in the manner you are attempting to. For example, the webserver
may have a directory called /images, and the images can be accessed by
knowing the name of the file in it,
http://www.xxx.com/images/bigpicture.jpg, which is fine, but
http://www.xxx.com/images/ is forbidden because it would generate a
directory listing.
This error means just what it says, that the file you requested cannot be found. It does tell you, however that the host server is still active. The MOST common reasons that this error is sent are,
This error is a severe one for the owner or webmaster of the host machine. This error is returned when the server itself cannot figure out what to do, or is not configured properly.
Error 501 -
Not Implimented
This error is generated when a web page (HTML) is experiencing problems.
Generally, it is caused by improper use of forms or other HTML functions
that are used in a haphazard manner. The owner/webmaster of the web pages
in question are responsible for fixing this problem.
This error is generated by your web browser. It usually means there is a
network problem somewhere between you and the remote host. Try accessing
another site to confirm your machine is working.
This error is also generated by your web browser, and means,
Unable to
Connect to ...
Unable to
Connect to ..... Server does not have a DNS entry