enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. nslookup - Wikipedia

    en.wikipedia.org/wiki/Nslookup

    nslookup operates in interactive or non-interactive mode. When used interactively by invoking it without arguments or when the first argument is - (minus sign) and the second argument is a hostname or Internet address of a name server, the user issues parameter configurations or requests when presented with the nslookup prompt (>).

  3. 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 .

  4. No-IP - Wikipedia

    en.wikipedia.org/wiki/No-IP

    Users were able to create a sub-domain under a few domains owned by No-IP. In May 2000, Vitalwerks Internet Solutions, LLC was formed as the parent company of No-IP. In January 2001 No-IP began offering paid managed DNS services which allowed users to set up dynamic DNS using their own domain name. Later that year, they began to offer email ...

  5. Comparison of DNS server software - Wikipedia

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

    The server software is shipped with a command line application dnscmd, [13] a DNS management GUI wizard, and a DNS PowerShell [14] package. In Windows Server 2012, the Windows DNS added support for DNSSEC, [ 15 ] with full-fledged online signing, with Dynamic DNS and NSEC3 support, along with RSASHA and ECDSA signing algorithms.

  6. Packet Tracer - Wikipedia

    en.wikipedia.org/wiki/Packet_Tracer

    Packet Tracer is a cross-platform visual simulation tool designed by Cisco Systems that allows users to create network topologies and imitate modern computer networks.The software allows users to simulate the configuration of Cisco routers and switches using a simulated command line interface.

  7. Network address translation - Wikipedia

    en.wikipedia.org/wiki/Network_address_translation

    NAT only translates IP addresses and ports of its internal hosts, hiding the true endpoint of an internal host on a private network. When a computer on the private (internal) network sends an IP packet to the external network, the NAT device replaces the internal source IP address in the packet header with the external IP address of the NAT device.

  8. List of IP protocol numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_IP_protocol_numbers

    IP-in-IP IP in IP (encapsulation) RFC 2003: 0x05 5 ST Internet Stream Protocol: RFC 1190, RFC 1819: 0x06 6 TCP Transmission Control Protocol: RFC 793: 0x07 7 CBT Core-based trees: RFC 2189: 0x08 8 EGP Exterior Gateway Protocol: RFC 888: 0x09 9 IGP Interior gateway protocol (any private interior gateway, for example Cisco's IGRP) 0x0A 10 BBN-RCC-MON

  9. Wildcard mask - Wikipedia

    en.wikipedia.org/wiki/Wildcard_mask

    A wildcard mask is a mask of bits that indicates which parts of an IP address are available for examination. In the Cisco IOS, [1] they are used in several places, for example: To indicate the size of a network or subnet for some routing protocols, such as OSPF. To indicate what IP addresses should be permitted or denied in access control lists ...