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  2. Multiservice tactical brevity code - Wikipedia

    en.wikipedia.org/wiki/Multiservice_tactical...

    Using the codes eases coordination and improves understanding during multiservice operations. The codes are intended for use by air, ground, sea, and space operations personnel at the tactical level. Code words that are followed by an asterisk (*) may differ in meaning from NATO usage. There is a key provided below to describe what personnel ...

  3. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    This class of status code indicates the client must take additional action to complete the request. Many of these status codes are used in URL redirection. [2]A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD.

  4. AN/FSQ-7 Combat Direction Central - Wikipedia

    en.wikipedia.org/wiki/AN/FSQ-7_Combat_Direction...

    The AN/FSQ-7 Combat Direction Central, referred to as the Q7 for short, was a computerized air defence command and control system. It was used by the United States Air Force for ground-controlled interception as part of the Semi-Automatic Ground Environment network during the Cold War .

  5. Operation Return to Sender - Wikipedia

    en.wikipedia.org/wiki/Operation_Return_to_Sender

    Raids in Marin County, California under "Return To Sender" occurred in early March 2007, showing that the operation continues. [5] On June 6, 2007 ICE arrested 29 individuals in New Haven, Connecticut as part of Operation Return to Sender and arrested a few days later in nearby North Haven. Some of these individuals had no criminal or ...

  6. What's a six-digit verification code — and why you should ...

    www.aol.com/whats-six-digit-verification-code...

    Never give a verification code to a stranger. No one should ever ask you for a six-digit verification code — not a stranger on social media, not tech support, not even your bank. If someone does ...

  7. File:'Return to Sender' by Sean Read, Kelvingrove Gallery ...

    en.wikipedia.org/wiki/File:'Return_to_Sender'_by...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate

  8. Why did I receive an email from MAILER-DAEMON? - AOL Help

    help.aol.com/articles/what-is-a-mailer-daemon...

    When you get a message from a "MAILER-DAEMON" or a "Mail Delivery Subsystem" with a subject similar to "Failed Delivery," this means that an email you sent was undeliverable and has been bounced back to you.

  9. List of SMTP server return codes - Wikipedia

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

    This is a list of Simple Mail Transfer Protocol (SMTP) response status codes. Status codes are issued by a server in response to a client's request made to the server. Unless otherwise stated, all status codes described here is part of the current SMTP standard, RFC 5321. The message phrases shown are typical, but any human-readable alternative ...