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  2. 2021 Microsoft Exchange Server data breach - Wikipedia

    en.wikipedia.org/wiki/2021_Microsoft_Exchange...

    Attackers then typically use this to install a web shell, providing a backdoor to the compromised server, [37] which gives hackers continued access to the server as long as both the web shell remains active and the Exchange server remains on. [29] Through the web shell installed by attackers, commands can be run remotely.

  3. History of Microsoft Exchange Server - Wikipedia

    en.wikipedia.org/wiki/History_of_Microsoft...

    The first release of Microsoft Exchange Server was version 4.0 in April 1996, when it was sold as an upgrade to Microsoft Mail 3.5. Before that, Microsoft Mail v2.0 (written by Microsoft) was replaced in 1991 by "Microsoft Mail for PC Networks v2.1", [1] based on Network Courier from its acquisition of Consumers Software. [2]

  4. Medium error - Wikipedia

    en.wikipedia.org/wiki/Medium_error

    Bad Blocks: These are damaged or defective areas on the storage medium where data cannot be reliably read or written. Media Degradation: Over time, storage media like optical discs or magnetic tapes can degrade, leading to read/write errors.

  5. List of SMTP server return codes - Wikipedia

    en.wikipedia.org/wiki/List_of_SMTP_server_return...

    A server capable of replying with an Enhanced Status Code MUST preface (prepend) the Text Part of SMTP Server responses with the Enhanced Status Code followed by one or more spaces. For example, the "221 Bye" reply (after QUIT command) MUST be sent as "221 2.0.0 Bye" instead.

  6. Exchange ActiveSync - Wikipedia

    en.wikipedia.org/wiki/Exchange_ActiveSync

    EAS 2.5 (Part of Exchange Server 2003 SP2) was the first version of EAS to be written by the Exchange Server team. This version also introduced Direct Push, a real-time push e-mail solution which allows the server to say "I have a new item for you" and then tells the client device to do a sync. (This was called a "Ping Sync").

  7. Blue screen of death - Wikipedia

    en.wikipedia.org/wiki/Blue_screen_of_death

    Windows 2000 used its built-in kernel mode font, Windows XP, Vista, and 7 use the Lucida Console font, and Windows 8 and Windows Server 2012 used the Segoe UI font. BSoDs on Windows 8 and Windows Server 2012 are rendered in higher resolutions than previous versions of Windows, where it uses the highest screen resolution available on UEFI machines.

  8. Remote Installation Services - Wikipedia

    en.wikipedia.org/wiki/Remote_Installation_Services

    The Remote Installation Server doubles as a proxy DHCP server to provide Boot Server and File name instructions to clients. Remote Installation Service utilizes UDP port 4011 [3] to provide clients the contents of each page the OS Chooser displays. Additionally, this service can provide drivers to clients; it is often used to provide the ...

  9. System Locked Pre-installation - Wikipedia

    en.wikipedia.org/wiki/System_Locked_Pre-installation

    System Locked Pre-installation (SLP), also referred to as OEM Activation, is a product activation procedure for Microsoft Windows used by major OEMs of laptops and pre-built PCs wherein a Windows product key is added and locked to the machine's firmware before mass distribution. SLP product keys cannot be moved to other machines.