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  2. Firewall (computing) - Wikipedia

    en.wikipedia.org/wiki/Firewall_(computing)

    In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. [ 1 ] [ 2 ] A firewall typically establishes a barrier between a trusted network and an untrusted network, such as the Internet .

  3. Linux - Wikipedia

    en.wikipedia.org/wiki/Linux

    This is an accepted version of this page This is the latest accepted revision, reviewed on 19 November 2024. Family of Unix-like operating systems This article is about the family of operating systems. For the kernel, see Linux kernel. For other uses, see Linux (disambiguation). Operating system Linux Tux the penguin, the mascot of Linux Developer Community contributors, Linus Torvalds Written ...

  4. Oklahoma City bombing - Wikipedia

    en.wikipedia.org/wiki/Oklahoma_City_bombing

    The fuses were set up to initiate, through shock tubes, the 350 pounds (160 kg) of Tovex Blastrite Gel sausages, which would in turn set off the configuration of barrels. Of the 13 filled barrels, nine contained ammonium nitrate and nitromethane, and four contained a mixture of the fertilizer and about 4 U.S. gallons (3.3 imp gal; 15 L) of ...

  5. Encryption - Wikipedia

    en.wikipedia.org/wiki/Encryption

    The question of balancing the need for national security with the right to privacy has been debated for years, since encryption has become critical in today's digital society. The modern encryption debate [ 42 ] started around the '90s when US government tried to ban cryptography because, according to them, it would threaten national security.

  6. Voice over IP - Wikipedia

    en.wikipedia.org/wiki/Voice_over_IP

    Security – Implementing access control, verifying the identity of other participants (computers or people), and encrypting data to protect the privacy and integrity of the media contents and/or the control messages. VoIP protocols include: Matrix, open standard for online chat, voice over IP, and videotelephony

  7. Java (programming language) - Wikipedia

    en.wikipedia.org/wiki/Java_(programming_language)

    Java is a high-level, class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible. It is a general-purpose programming language intended to let programmers write once, run anywhere (), [16] meaning that compiled Java code can run on all platforms that support Java without the need to recompile. [17]

  8. WhatsApp - Wikipedia

    en.wikipedia.org/wiki/WhatsApp

    WhatsApp (officially WhatsApp Messenger) is an instant messaging (IM) and voice-over-IP (VoIP) service owned by technology conglomerate Meta. [14] It allows users to send text, voice messages and video messages, [15] make voice and video calls, and share images, documents, user locations, and other content.