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  2. Reverse DNS lookup - Wikipedia

    en.wikipedia.org/wiki/Reverse_DNS_lookup

    For example, to do a reverse lookup of the IP address 8.8.4.4 the PTR record for the domain name 4.4.8.8.in-addr.arpa would be looked up, and found to point to dns.google. If the A record for dns.google in turn pointed back to 8.8.4.4 then it would be said to be forward-confirmed .

  3. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    As the HTTP/1.0 standard did not define any 1xx status codes, servers must not [note 1] send a 1xx response to an HTTP/1.0 compliant client except under experimental conditions. 100 Continue The server has received the request headers and the client should proceed to send the request body (in the case of a request for which a body needs to be ...

  4. Minecraft server - Wikipedia

    en.wikipedia.org/wiki/Minecraft_server

    A Minecraft server network that allows players to make their own servers and advertise it to thousands of daily players. It is owned by GamerSafer, who also created the Official Minecraft Server List. [60] nerd.nu June 2009: One of the two oldest Minecraft servers. The map has been revised at least 26 times, and sources conflict on whether nerd ...

  5. HTTP 404 - Wikipedia

    en.wikipedia.org/wiki/HTTP_404

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

  6. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  7. Server Name Indication - Wikipedia

    en.wikipedia.org/wiki/Server_Name_Indication

    In practice, this meant that an HTTPS server could only serve one domain (or small group of domains) per IP address for secured and efficient browsing. Assigning a separate IP address for each site increases the cost of hosting, since requests for IP addresses must be justified to the regional Internet registry and IPv4 addresses are now exhausted.

  8. IPv4 address exhaustion - Wikipedia

    en.wikipedia.org/wiki/IPv4_address_exhaustion

    The various legacy address blocks with administration historically split among the RIRs were distributed to the RIRs in February 2011. [28] APNIC was the first regional Internet registry to run out of freely allocated IPv4 addresses, on 15 April 2011. This date marked the point where not everyone who needed an IPv4 address could be allocated one.

  9. Root name server - Wikipedia

    en.wikipedia.org/wiki/Root_name_server

    The addition of IPv6 addresses for the root name servers requires more than 512 bytes, which is facilitated by the EDNS0 extension to the DNS standard. [8] This does not mean that there are only 13 physical servers; each operator uses redundant computer equipment to provide reliable service even if failure of hardware or software occurs.