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  2. PHP - Wikipedia

    en.wikipedia.org/wiki/PHP

    PHP is a general-purpose scripting language that is especially suited to server-side web development, in which case PHP generally runs on a web server. Any PHP code in a requested file is executed by the PHP runtime, usually to create dynamic web page content or dynamic images used on websites or elsewhere. [281]

  3. Multi-user software - Wikipedia

    en.wikipedia.org/wiki/Multi-user_software

    Multi-user software. Multi-user software is computer software that allows access by multiple users of a computer. [1] Time-sharing systems are multi-user systems. Most batch processing systems for mainframe computers may also be considered "multi-user", to avoid leaving the CPU idle while it waits for I/O operations to complete.

  4. Server-side scripting - Wikipedia

    en.wikipedia.org/wiki/Server-side_scripting

    Server-side scripting is a technique used in web development which involves employing scripts on a web server which produces a response customized for each user's (client's) request to the website. Scripts can be written in any of a number of server-side scripting languages that are available (see below). Server-side scripting is distinguished ...

  5. Pidgin (software) - Wikipedia

    en.wikipedia.org/wiki/Pidgin_(software)

    Pidgin (formerly named Gaim) is a free and open-source multi-platform instant messaging client, based on a library named libpurple that has support for many instant messaging protocols, allowing the user to simultaneously log in to various services from a single application, with a single interface for both popular and obsolete protocols (from AIM to Discord), thus avoiding the hassle of ...

  6. Caesar cipher - Wikipedia

    en.wikipedia.org/wiki/Caesar_cipher

    With the Caesar cipher, encrypting a text multiple times provides no additional security. This is because two encryptions of, say, shift A and shift B, will be equivalent to a single encryption with shift A + B. In mathematical terms, the set of encryption operations under each possible key forms a group under composition.

  7. XZ Utils backdoor - Wikipedia

    en.wikipedia.org/wiki/XZ_Utils_backdoor

    The attacker made efforts to obfuscate the code, as the backdoor consists of multiple stages that act together. Once the compromised version is incorporated into the operating system, it alters the behavior of OpenSSH's SSH server daemon by abusing the systemd library, allowing the attacker to gain administrator access.

  8. Serendipity (software) - Wikipedia

    en.wikipedia.org/wiki/Serendipity_(software)

    Serendipity is a blog and web-based content management system written in PHP and available under a BSD license. It supports PostgreSQL, MySQL, SQLite database backends, the Smarty template engine, and a plugin architecture for user contributed modifications. [2]

  9. List of free and open-source software packages - Wikipedia

    en.wikipedia.org/wiki/List_of_free_and_open...

    This is a list of free and open-source software packages, computer software licensed under free software licenses and open-source licenses.Software that fits the Free Software Definition may be more appropriately called free software; the GNU project in particular objects to their works being referred to as open-source.