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  2. Template:IP range calculator - Wikipedia

    en.wikipedia.org/wiki/Template:IP_range_calculator

    The result uses CIDR notation and can be used by an administrator to block a range of IP addresses. The template can be used by editing any page, inserting the template, and previewing the result. There is no need to save the edit.

  3. Classless Inter-Domain Routing - Wikipedia

    en.wikipedia.org/wiki/Classless_Inter-Domain_Routing

    CIDR notation is a compact representation of an IP address and its associated network mask. The notation was invented by Phil Karn in the 1980s. [9] [10] CIDR notation specifies an IP address, a slash ('/') character, and a decimal number. The decimal number is the count of consecutive leading 1-bits (from left to right) in the network mask ...

  4. Longest prefix match - Wikipedia

    en.wikipedia.org/wiki/Longest_prefix_match

    It is called this because it is also the entry where the largest number of leading address bits of the destination address match those in the table entry. [2] For example, consider this IPv4 forwarding table (CIDR notation is used): 192.168.20.16/28 192.168.0.0/16

  5. Reserved IP addresses - Wikipedia

    en.wikipedia.org/wiki/Reserved_IP_addresses

    Special address blocks Address block (CIDR) First address Last address Number of addresses Usage Purpose ::/128 :: :: 1 Software Unspecified address

  6. Wikipedia:Blocking IP addresses - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Blocking_IP...

    Alternately, if you are unsure whether disruptive edits from a specific range are a specific user, you can post a request at sockpuppet investigations where another editor will attempt to match users with IP addresses. You can calculate a rangeblock using this tool or {{IP range calculator}}.

  7. List of DNS record types - Wikipedia

    en.wikipedia.org/wiki/List_of_DNS_record_types

    Specify lists of address ranges, e.g. in CIDR format, for various address families. Experimental. SINK 40 — Defined by the Kitchen Sink Internet Draft, but never made it to RFC status GPOS 27 RFC 1712 A more limited early version of the LOC record UINFO 100 —

  8. Here Are the Biggest 401(k) Mistakes Each Generation Is Making

    www.aol.com/biggest-401-k-mistakes-generation...

    Image source: Getty Images. Baby boomers: Not embracing the Roth 401(k) Baby boomers saw the first 401(k)s in 1978, and most have stuck with these traditional plans to the present day.

  9. List of spreadsheet software - Wikipedia

    en.wikipedia.org/wiki/List_of_spreadsheet_software

    Historical office suite still available and supported. It includes a spreadsheet. Google Sheets – as part of Google Workspace suite, supporting both offline and online editing. IBM Lotus Symphony – freeware for MS Windows, Apple Mac OS X and Linux. Kingsoft Office Spreadsheets 2012 – For MS Windows. Both free and paid versions are available.