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  2. List of DNS record types - Wikipedia

    en.wikipedia.org/wiki/List_of_DNS_record_types

    A graphical overview of all active DNS record types. This list of DNS record types is an overview of resource records (RRs) permissible in zone files of the Domain Name System (DNS). It also contains pseudo-RRs.

  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. Wildcard DNS record - Wikipedia

    en.wikipedia.org/wiki/Wildcard_DNS_record

    A wildcard DNS record is a record in a DNS zone that will match requests for non-existent domain names. A wildcard DNS record is specified by using a * as the leftmost label (part) of a domain name, e.g. *.example.com. The exact rules for when a wildcard will match are specified in RFC 1034, but the rules are neither intuitive nor clearly ...

  5. nslookup - Wikipedia

    en.wikipedia.org/wiki/Nslookup

    dig, a utility that interrogates DNS servers directly for troubleshooting and system administration purposes. host is a simple utility for performing Domain Name System lookups. List of DNS record types - possible types of records stored and queried within DNS; Root name server - top-level name servers providing top level domain name resolution ...

  6. dig (command) - Wikipedia

    en.wikipedia.org/wiki/Dig_(command)

    dig is a network administration command-line tool for querying the Domain Name System (DNS).. dig is useful for network troubleshooting and for educational purposes. [2] It can operate based on command line option and flag arguments, or in batch mode by reading requests from an operating system file.

  7. Domain Name System - Wikipedia

    en.wikipedia.org/wiki/Domain_Name_System

    A DNS name server is a server that stores the DNS records for a domain; a DNS name server responds with answers to queries against its database. The most common types of records stored in the DNS database are for start of authority ( SOA ), IP addresses ( A and AAAA ), SMTP mail exchangers (MX), name servers (NS), pointers for reverse DNS ...

  8. Domain Name System blocklist - Wikipedia

    en.wikipedia.org/wiki/Domain_Name_System_blocklist

    A Domain Name System blocklist, Domain Name System-based blackhole list, Domain Name System blacklist (DNSBL) or real-time blackhole list (RBL) is a service for operation of mail servers to perform a check via a Domain Name System (DNS) query whether a sending host's IP address is blacklisted for email spam. [1]

  9. Category:DNS record types - Wikipedia

    en.wikipedia.org/wiki/Category:DNS_record_types

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file

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