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  2. HTTP 301 - Wikipedia

    en.wikipedia.org/wiki/HTTP_301

    Multiple Redirects: Using multiple 301 redirects in succession (A to B, then B to C) can lead to increased page load times and may dilute SEO value. Mixed Content Issues : When redirecting from HTTP to HTTPS, ensure that all resources (images, scripts, stylesheets) on the page are also loaded over HTTPS to prevent mixed content warnings.

  3. List of TCP and UDP port numbers - Wikipedia

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

    Xerox Network Systems (XNS) Mail. Despite this port being assigned by IANA, the service is meant to work on SPP (ancestor of IPX/SPX), instead of TCP/IP. [36] 61: Reserved: Historically assigned to the NIFTP-Based Mail protocol, [38] but was never documented in the related IEN. [39] The port number entry was removed from IANA's registry on 2017 ...

  4. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    Many of these status codes are used in URL redirection. [2] A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD. A user agent may automatically redirect a request. A user agent should detect and intervene to prevent cyclical redirects. [1]: §15.4 300 Multiple ...

  5. Persistent uniform resource locator - Wikipedia

    en.wikipedia.org/wiki/Persistent_uniform...

    Some operators prefer to use PURLs of type 301 (indicating that the final URI should be addressed in future requests). A PURL of type "chain" allows a PURL to redirect to another PURL in a manner identical to a 301 or 302 redirection, with the difference that a PURL server will handle the redirection internally for greater efficiency.

  6. Ephemeral port - Wikipedia

    en.wikipedia.org/wiki/Ephemeral_port

    An ephemeral port is a communications endpoint of a transport layer protocol of the Internet protocol suite that is used for only a short period of time for the duration of a communication session. Such short-lived ports are allocated automatically within a predefined range of port numbers by the IP stack software of a computer operating system.

  7. AOL Help

    help.aol.com

    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.

  8. Port forwarding - Wikipedia

    en.wikipedia.org/wiki/Port_forwarding

    Port forwarding via NAT router. In computer networking, port forwarding or port mapping is an application of network address translation (NAT) that redirects a communication request from one address and port number combination to another while the packets are traversing a network gateway, such as a router or firewall.

  9. List of HTTP header fields - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_header_fields

    Permanent RFC 7239: From: The email address of the user making the request. From: user@example.com: Permanent RFC 9110: Host: The domain name of the server (for virtual hosting), and the TCP port number on which the server is listening. The port number may be omitted if the port is the standard port for the service requested. Mandatory since ...