Secret code of letters and numbers needed to gain access to a time-sharing computer or FTP system, or to protect Web pages.
Perl
Perl is a general-purpose programming language invented in 1987 by Larry Wall. With over one million users worldwide, it has become the language of choice for Web development, text processing, Internet services, mail filtering, graphical programming, systems administration, and every other task requiring portable and easily-developed solutions.
PHP
PHP (Hypertext Preprocessor) is an open source server side programming language extensively used for web scripts and to process data passed via the Common Gateway Interface from HTML forms etc. PHP can be written as scripts that reside on the server and may produce HTML output that downloads to the web browser. Alternatively, PHP can be embedded within HTML pages that are then saved with a .php file extension.
Ping
Packet InterNet Groper is a program and UNIX command that helps testing and debugging network and/or Internet connections. An 'Echo' command is sent to a specified computer and then waits for a response. The result is a report that displays the success or failure, usually a report back of a timed response in seconds, of the intended action.
Protocol
The rules make possible the exchange of messages between users on the Internet, or within any given network.
Proxy servers
A proxy server is a system that caches items from other servers to speed up access. On the Web, a proxy first attempts to find data locally, and if it's not there, fetches it from the remote server where the data resides permanently.
