PassWord 4.x applet
Word from the author
This is the fourth password applet I wrote.
Password applets do not give a full proof protection.
It only tries to hide an Internet link (URL) of being discovered.
If you know this URL then you can bypass the security.
So never use the applet to protect valuable or sensitive information.
There are far better ways to protect your resources.
But many of us do not have the knowledge or resources to implement it.
That's where this applet is good for.
It will give you a reasonable level of protection if set up the right way!
OTHER WAYS TO PROTECT A RESOURCE:
These scripts are executed on the provider's computer before they are sent to the visitor.
PHP is used on UNIX while ASP its counterpart is used on NT servers.
These scripts can query a database.
They are often used to dynamically build an html page.
Just think of a bookstore that sells books
You just enter the publishers name and PHP dynamically builds your page.
The bookstore manager only does have to maintain its database.
He doesn't have to create all pages manually.
Cookies themselves can't protect your page.
But they can be of great help.
Cookies where invented by Netscape.
They now are used all over the Internet.
A cookie is a file stored on the visitor's computer.
They can be read back when the visitor returns.
They are used to store visitor's preferences.
So they can be used to store a username and password.
PHP and ASP do have access to cookies.
This way a user only has to log in once.
There are some restrictions on cookies to protect the visitor's privacy.
For example they can only be red from the place where the cookie was stored.
Also the file size of a cookie is limited.
CGI scripts are also a good way to protect a site.
They are even more complex compared to PHP and ASP.
CGI scripts aren't stored in a separate file on the provider's computer.
PHP and ASP generally are placed into the html source.
Also CGI requires a special configured directory on the provider's computer.
CGI also has access to cookies.
CGI is an older technology compared to PHP and ASP.
Buts it's very powerful.
CGI scripts can be written in several languages.
Most used are Perl and C++.
A very advanced and secure method is an .htaccess file.
Apache software is able to use an .htacess file.
Most servers on the Internet use Apache software.
However Apache needs to be configured for it.
Also you mostly need to have terminal access to the provider's computer.
Mostly a telnet program is used for this.
Telnet is nothing more than a remote terminal.
You see the UNIX prompt which looks like the old DOS.
You need to type some commands at he UNIX prompt to create a password file.
I only once did set-up a page with .htaccess.
So I do not have much experience with it.