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  2. Help:Reverting - Wikipedia

    en.wikipedia.org/wiki/Help:Reverting

    does not require loading an edit page and sending the wikitext back to the server; does not require a click of the Publish changes button; On the other hand, it is not as versatile as undo, since it does not allow specification of which edits have to be undone.

  3. Git - Wikipedia

    en.wikipedia.org/wiki/Git

    Frequently used commands for Git's command-line interface include: [67] [68] git init, which is used to create a git repository. git clone [URL], which clones, or duplicates, a git repository from an external URL. git add [file], which adds a file to git's working directory (files about to be committed).

  4. Undo - Wikipedia

    en.wikipedia.org/wiki/Undo

    The main difference between linear undo and non-linear undo is the possibility of the user to undo the executed commands in an arbitrary order. They have the chance to undo not the most recently command but rather choose a command from the list. [3] For non linear model there are subclasses which implement this model.

  5. Linux kernel - Wikipedia

    en.wikipedia.org/wiki/Linux_kernel

    The Linux kernel is a free and open source, [11]: 4 Unix-like kernel that is used in many computer systems worldwide. The kernel was created by Linus Torvalds in 1991 and was soon adopted as the kernel for the GNU operating system (OS) which was created to be a free replacement for Unix.

  6. UEFI - Wikipedia

    en.wikipedia.org/wiki/UEFI

    Ubuntu 12.10 uses an older version of shim [which?] pre-configured for use with Canonical's own key that verifies only the bootloader and allows unsigned kernels to be loaded; developers believed that the practice of signing only the bootloader is more feasible, since a trusted kernel is effective at securing only the user space, and not the ...

  7. Linux - Wikipedia

    en.wikipedia.org/wiki/Linux

    This is an accepted version of this page This is the latest accepted revision, reviewed on 24 February 2025. 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 ...

  8. Virtual private network - Wikipedia

    en.wikipedia.org/wiki/Virtual_private_network

    Virtual private network (VPN) is a network architecture for virtually extending a private network (i.e. any computer network which is not the public Internet) across one or multiple other networks which are either untrusted (as they are not controlled by the entity aiming to implement the VPN) or need to be isolated (thus making the lower network invisible or not directly usable).

  9. Network Time Protocol - Wikipedia

    en.wikipedia.org/wiki/Network_Time_Protocol

    Time at the server when the request arrived, in NTP timestamp format. Transmit Timestamp (xmt): 64 bits Time at the server when the response left, in NTP timestamp format. Extension Field: variable Optional field(s) for NTP extensions (see [5], Section 7.5). Key Identifier: 32 bits Unsigned integer designating an MD5 key shared by the client ...