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  2. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    Unless otherwise stated, the status code is part of the HTTP standard. [1] The Internet Assigned Numbers Authority (IANA) maintains the official registry of HTTP status codes. [2] All HTTP response status codes are separated into five classes or categories. The first digit of the status code defines the class of response, while the last two ...

  3. Electronic System for Travel Authorization - Wikipedia

    en.wikipedia.org/wiki/Electronic_System_for...

    The Electronic System for Travel Authorization (ESTA) is an automated system that determines the eligibility of visitors to travel to the United States under the Visa Waiver Program (VWP). ESTA was mandated by the Implementing Recommendations of the 9/11 Commission Act of 2007 . [ 1 ]

  4. List of FTP server return codes - Wikipedia

    en.wikipedia.org/.../List_of_FTP_server_return_codes

    File status okay; about to open data connection. 200 Series: The requested action has been successfully completed. 202: Command not implemented, superfluous at this site. 211: System status, or system help reply. 212: Directory status. 213: File status. 214: Help message. Explains how to use the server or the meaning of a particular non ...

  5. Israel launches ETA system for visa-exempt countries - AOL

    www.aol.com/news/israel-launches-eta-system-visa...

    Israel said on Tuesday it was moving to an electronic travel authorisation system for visitors from visa-exempt countries starting in August, joining Britain, the United States, Canada and other ...

  6. 500 error - Wikipedia

    en.wikipedia.org/?title=500_error&redirect=no

    List of HTTP status codes#500 To a section : This is a redirect from a topic that does not have its own page to a section of a page on the subject. For redirects to embedded anchors on a page, use {{ R to anchor }} instead .

  7. 2,600+ US flights canceled: United, American Airlines ... - AOL

    www.aol.com/news/over-500-us-flights-canceled...

    Several U.S. carriers issued ground stops for all their flights early on Friday following a global tech outage, according to the FAA.

  8. 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 ...

  9. Visa policy of the United States - Wikipedia

    en.wikipedia.org/wiki/Visa_policy_of_the_United...

    The Electronic System for Travel Authorization (ESTA) is not considered a visa, [49] but a prerequisite to traveling to the United States under the Visa Waiver Program. ESTA has an application fee of 4 USD, and if approved, an additional fee of 17 USD is charged, for a total of 21 USD. Once obtained, the authorization is valid for up to two ...