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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 status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    The request was directed at a server that is not able to produce a response (for example because of connection reuse). 422 Unprocessable Content The request was well-formed (i.e., syntactically correct) but could not be processed. [1]: §15.5.21 423 Locked (WebDAV; RFC 4918) The resource that is being accessed is locked. [7]

  4. TR-069 - Wikipedia

    en.wikipedia.org/wiki/TR-069

    The ACS requests a connection from the device by visiting a negotiated URL and performing HTTP Authentication. A shared secret is also negotiated with the device in advance (e.g. previous provisioning session) to prevent the usage of CPEs for DDoS attacks on the provisioning server (ACS).

  5. Session Initiation Protocol - Wikipedia

    en.wikipedia.org/wiki/Session_Initiation_Protocol

    SIP is a text-based protocol with syntax similar to that of HTTP. There are two different types of SIP messages: requests and responses. The first line of a request has a method, defining the nature of the request, and a Request-URI, indicating where the request should be sent. [19] The first line of a response has a response code.

  6. Transmission Control Protocol - Wikipedia

    en.wikipedia.org/wiki/Transmission_Control_Protocol

    Waiting for a matching connection request after having sent a connection request. SYN-RECEIVED Server Waiting for a confirming connection request acknowledgment after having both received and sent a connection request. ESTABLISHED Server and client An open connection, data received can be delivered to the user.

  7. Fix problems reading or receiving AOL Mail

    help.aol.com/articles/fix-problems-reading-or...

    This can often help when you're having problems retrieving mail on a slower connection speed. Reset your web settings Sometimes installing multiple browsers can result in your web settings getting changed.

  8. List of SIP response codes - Wikipedia

    en.wikipedia.org/wiki/List_of_SIP_response_codes

    Request contains an encrypted MIME body, which recipient can not decrypt. [1]: §21.4.28 494 Security Agreement Required The server has received a request that requires a negotiated security mechanism, and the response contains a list of suitable security mechanisms for the requester to choose between, [21]: §§2.3.1–2.3.2 or a digest ...

  9. AOL Mail

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