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  2. Blackhole server - Wikipedia

    en.wikipedia.org/wiki/Blackhole_server

    They are PTR queries for subdomains of in-addr.arpa (for IPv4 addresses) [3] and ip6.arpa (for IPv6 addresses). [4] For example, to find the domain name associated with the IP address 203.0.113.22, one would send a PTR query for 22.133.0.203.in-addr.arpa. Misconfigured hosts [5] often send reverse DNS queries for private addresses to the public ...

  3. List of IP protocol numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_IP_protocol_numbers

    This is a list of the IP protocol numbers found in the field Protocol of the IPv4 header and the Next Header field of the IPv6 header. It is an identifier for the encapsulated protocol and determines the layout of the data that immediately follows the header. Both fields are eight bits wide.

  4. Simple DNS Plus - Wikipedia

    en.wikipedia.org/wiki/Simple_DNS_Plus

    Simple DNS Plus is a DNS server software product that runs on x86 and x64 editions of Windows operating system. All options and settings are available directly from a Windows user interface. It provides wizards for common tasks such as setting up new zones, importing data, making bulk updates, etc.

  5. 1.1.1.1 - Wikipedia

    en.wikipedia.org/wiki/1.1.1.1

    The 1.1.1.1 DNS service operates recursive name servers for public use at the twelve IP addresses listed below. [11] These addresses are mapped to the nearest operational server by anycast routing. [12] The DNS service is also available for Tor clients. [13] Users can set up the service by manually changing their DNS resolvers to the IP ...

  6. Unbound (DNS server) - Wikipedia

    en.wikipedia.org/wiki/Unbound_(DNS_server)

    DNS over TLS forwarding and server, with domain-validation [2] DNS over HTTPS [3] [4] DNS over QUIC [5] Query Name Minimization [6] Aggressive Use of DNSSEC-Validated Cache [7] Authority zones, for a local copy of the root zone [8] DNS64; DNSCrypt [9] DNSSEC validating; EDNS Client Subnet

  7. Comparison of DNS server software - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_DNS_server...

    Knot DNS is a free software authoritative DNS server by CZ.NIC. Knot DNS aims to be a fast, resilient DNS server usable for infrastructure (root and TLD) and DNS hosting services. Knot DNS supports DNSSEC signing and among others hosts root zone (B, K, and L root name servers ), several top-level domains .

  8. List of DNS record types - Wikipedia

    en.wikipedia.org/wiki/List_of_DNS_record_types

    Returns all records of all types known to the name server. If the name server does not have any information on the name, the request will be forwarded on. The records returned may not be complete. For example, if there is both an A and an MX for a name, but the name server has only the A record cached, only the A record will be returned.

  9. List of TCP and UDP port numbers - Wikipedia

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

    Multicast DNS (mDNS) [11] 5355: Yes: Link-Local Multicast Name Resolution (LLMNR), allows hosts to perform name resolution for hosts on the same local link (only provided by Windows Vista and Server 2008) 5357: Unofficial: Web Services for Devices (WSDAPI) (starting from Windows Vista, Windows 7 and Server 2008) 5358: Unofficial