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  2. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    The request entity has a media type which the server or resource does not support. For example, the client uploads an image as image/svg+xml, but the server requires that images use a different format. 416 Range Not Satisfiable The client has asked for a portion of the file (byte serving), but the server cannot supply that portion. For example ...

  3. WireGuard - Wikipedia

    en.wikipedia.org/wiki/WireGuard

    WireGuard is designed to be extended by third-party programs and scripts. This has been used to augment WireGuard with various features including more user-friendly management interfaces (including easier setting up of keys), logging, dynamic firewall updates, dynamic IP assignment, [15] and LDAP integration. [citation needed]

  4. Mullvad - Wikipedia

    en.wikipedia.org/wiki/Mullvad

    Mullvad was launched in March of 2009 by Amagicom AB, [6] and it had begun by supporting connections via the OpenVPN protocol in 2009. [7] Mullvad was an early adopter and supporter of the WireGuard protocol, announcing the availability of the new VPN protocol in March 2017 [8] and making a "generous donation" supporting WireGuard development between July and December 2017.

  5. Stateful firewall - Wikipedia

    en.wikipedia.org/wiki/Stateful_firewall

    UDP hole punching is a technology that leverages this trait to allow for dynamically setting up data tunnels over the internet. [6] ICMP messages are distinct from TCP and UDP and communicate control information of the network itself. A well-known example of this is the ping utility. [7] ICMP responses will be allowed back through the firewall.

  6. List of DNS record types - Wikipedia

    en.wikipedia.org/wiki/List_of_DNS_record_types

    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.

  7. List of TCP and UDP port numbers - Wikipedia

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

    Freeciv versions up to 2.0, Hewlett-Packard Data Protector, McAfee EndPoint Encryption Database Server, SAP, Default for Microsoft Dynamics CRM 4.0, Softether VPN default port Unofficial Wireless adb (Android Debug Bridge) control of an Android device over the network.

  8. DNS zone transfer - Wikipedia

    en.wikipedia.org/wiki/DNS_zone_transfer

    The client sends the SOA resource record for the zone apex that it currently has, if any, in the IXFR message, letting the server know which version of the "zone" it believes to be current. Though the server may respond in the normal AXFR manner with the full data for the zone, it may also instead respond with an "incremental" data transfer.

  9. Finger (protocol) - Wikipedia

    en.wikipedia.org/wiki/Finger_(protocol)

    By using a finger client to get a list of a company's employee names, email addresses, phone numbers, and so on, a hacker can call or email someone at a company requesting information while posing as another employee. The finger daemon has also had several [citation needed] exploitable security holes crackers have used to break into systems.