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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. HTTP 403 - Wikipedia

    en.wikipedia.org/wiki/HTTP_403

    IP restrictions: The server may also restrict access to specific IP addresses or IP ranges. If the user's IP address is not included in the list of permitted addresses, a 403 status code is returned. Server configuration: The server's configuration can be set to prohibit access to certain files, directories, or areas of the website.

  4. Server-sent events - Wikipedia

    en.wikipedia.org/wiki/Server-sent_events

    Server-Sent Events (SSE) is a server push technology enabling a client to receive automatic updates from a server via an HTTP connection, and describes how servers can initiate data transmission towards clients once an initial client connection has been established. They are commonly used to send message updates or continuous data streams to a ...

  5. HTTPS - Wikipedia

    https://en.wikipedia.org/wiki/HTTPS

    Hypertext Transfer Protocol Secure ( HTTPS) is an extension of the Hypertext Transfer Protocol (HTTP). It uses encryption for secure communication over a computer network, and is widely used on the Internet. [ 1 ][ 2 ] In HTTPS, the communication protocol is encrypted using Transport Layer Security (TLS) or, formerly, Secure Sockets Layer (SSL ...

  6. Bill allowing doctor-assisted suicide in Delaware fails in Senate

    www.aol.com/news/bill-allowing-doctor-assisted...

    A bill allowing doctor-assisted suicide in Delaware failed to win approval in the state Senate on Thursday after narrowly clearing the House earlier this year, but it could come back next week.

  7. SRV record - Wikipedia

    en.wikipedia.org/wiki/SRV_record

    SRV record. A Service record ( SRV record) is a specification of data in the Domain Name System defining the location, i.e., the hostname and port number, of servers for specified services. It is defined in RFC 2782, and its type code is 33. Some Internet protocols such as the Session Initiation Protocol (SIP) and the Extensible Messaging and ...

  8. 277 (number) - Wikipedia

    en.wikipedia.org/wiki/277_(number)

    277 is the 59th prime number, and is a regular prime. [1] It is the smallest prime p such that the sum of the inverses of the primes up to p is greater than two. [2] Since 59 is itself prime, 277 is a super-prime. [3] 59 is also a super-prime (it is the 17th prime), as is 17 (the 7th prime). However, 7 is the fourth prime number, and 4 is not ...

  9. United Air Lines Flight 227 - Wikipedia

    en.wikipedia.org/wiki/United_Air_Lines_Flight_227

    N7030U, the aircraft involved, at Kansas City in July 1965. Flight 227, operated by a Boeing 727-22, registration N7030U, [6] departed LaGuardia Airport at 08:35 MST (10:35 EST) for San Francisco, California, with scheduled stops in Cleveland, Chicago, Denver, and Salt Lake City. The flight to Denver was routine.