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  2. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    An expansion of the 400 Bad Request response code, used when a client certificate is required but not provided. 497 HTTP Request Sent to HTTPS Port. An expansion of the 400 Bad Request response code, used when the client has made a HTTP request to a port listening for HTTPS requests. 499 Client Closed Request.

  3. Lockout–tagout - Wikipedia

    en.wikipedia.org/wiki/Lockout–tagout

    Lockout Tagout hasp can accommodate up to 6 padlocks, can be used during group LOTO procedure. Lock out, tag out or lockout–tagout (LOTO) is a safety procedure used to ensure that dangerous equipment is properly shut off and not able to be started up again prior to the completion of maintenance or repair work.

  4. ISO 3166-1 alpha-2 - Wikipedia

    en.wikipedia.org/wiki/ISO_3166-1_alpha-2

    ISO 3166-1 alpha-2 codes are two-letter country codes defined in ISO 3166-1, part of the ISO 3166 standard [1] published by the International Organization for Standardization (ISO), to represent countries, dependent territories, and special areas of geographical interest. They are the most widely used of the country codes published by ISO (the ...

  5. CAPTCHA - Wikipedia

    en.wikipedia.org/wiki/Captcha

    This CAPTCHA (Version 1) of "smwm" obscures its message from computer interpretation by twisting the letters and adding a slight background color gradient. A CAPTCHA is a type of challenge–response test used in computing to determine whether the user is human in order to deter bot attacks and spam. The term was coined in 2003 by Luis von Ahn, Manuel Blum, Nicholas J. Hopper, and John ...

  6. Session fixation - Wikipedia

    en.wikipedia.org/wiki/Session_fixation

    Logout function. A logout function is useful as it allows users to indicate that a session should not allow further requests. Thus attacks can only be effective while a session is active. Note that the following code performs no Cross-site request forgery checks, potentially allowing an attacker to force users to log out of the web application.

  7. Bash (Unix shell) - Wikipedia

    en.wikipedia.org/wiki/Bash_(Unix_shell)

    Bash, short for Bourne-Again SHell, is a shell program and command language supported by the Free Software Foundation and first developed for the GNU Project by Brian Fox. ...

  8. How to Know When to Go to the Hospital for Labor - Healthline

    www.healthline.com/health/pregnancy/when-to-go...

    A simple rule for when to go to the hospital for labor is the 5-1-1 rule for timing contractions. That said, it’s not always easy to recognize labor. Let’s hope you have a timer handy because ...

  9. Wi-Fi - Wikipedia

    en.wikipedia.org/wiki/Wi-Fi

    Wi-Fi (/ ˈ w aɪ f aɪ /) is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves.