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  2. HTTP persistent connection - Wikipedia

    en.wikipedia.org/wiki/HTTP_persistent_connection

    Under HTTP 1.0, connections should always be closed by the server after sending the response. [1]Since at least late 1995, [2] developers of popular products (browsers, web servers, etc.) using HTTP/1.0, started to add an unofficial extension (to the protocol) named "keep-alive" in order to allow the reuse of a connection for multiple requests/responses.

  3. List of HTTP header fields - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_header_fields

    Upgrade: h2c, HTTPS/1.3, IRC/6.9, RTA/x11, websocket: Permanent RFC 9110: Via: Informs the server of proxies through which the request was sent. Via: 1.0 fred, 1.1 example.com (Apache/1.1) Permanent RFC 9110: Warning: A general warning about possible problems with the entity body. Warning: 199 Miscellaneous warning: Obsolete [21] RFC 7234, 9111

  4. Propagation constant - Wikipedia

    en.wikipedia.org/wiki/Propagation_constant

    In the context of two-port networks and their cascades, propagation constant measures the change undergone by the source quantity as it propagates from one port to the next. The propagation constant's value is expressed logarithmically , almost universally to the base e , rather than base 10 that is used in telecommunications in other situations.

  5. List of TCP and UDP port numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_TCP_and_UDP_port...

    The port numbers in the range from 0 to 1023 (0 to 2 10 − 1) are the well-known ports or system ports. [3] They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the ...

  6. Cross-site scripting - Wikipedia

    en.wikipedia.org/wiki/Cross-site_scripting

    Another mitigation present in Internet Explorer (since version 6), Firefox (since version 2.0.0.5), Safari (since version 4), Opera (since version 9.5) and Google Chrome, is an HttpOnly flag which allows a web server to set a cookie that is unavailable to client-side scripts. While beneficial, the feature can neither fully prevent cookie theft ...

  7. Error bar - Wikipedia

    en.wikipedia.org/wiki/Error_bar

    Help; Learn to edit; Community portal; Recent changes; Upload file; Special pages

  8. Stack Overflow - Wikipedia

    en.wikipedia.org/wiki/Stack_Overflow

    [5] [6] It features questions and answers on certain computer programming topics. [7] [8] [9] It was created to be a more open alternative to earlier question and answer websites such as Experts-Exchange. Stack Overflow was sold to Prosus, a Netherlands-based consumer internet conglomerate, on 2 June 2021 for $1.8 billion. [10]

  9. Angular size redshift relation - Wikipedia

    en.wikipedia.org/?title=Angular_size_redshift...

    Retrieved from "https://en.wikipedia.org/w/index.php?title=Angular_size_redshift_relation&oldid=256296539"