DNS Lookup, Reverse DNS Lookup, Domain Configuration Check and IP Address Calculators

List of Relevant RFC's (Request For Comments)

Here is a list of RFC's that are related to DNS, IP addresses, Mail and internet related protocols.

RFC5966 - DNS Transport over TCP - Implementation Requirements.

RFC5735 - Special Use IPv4 Addresses.

RFC5156 - Special-Use IPv6 Addresses.

RFC4472 - Operational Considerations and Issues with IPv6 DNS.

RFC4408 - Sender Policy Framework (SPF) for Authorizing Use of Domains in E-Mail, Version 1.

RFC4343 - Domain Name System (DNS) Case Insensitivity Clarification.

RFC4291 - IP Version 6 Addressing Architecture.

RFC3513 - Internet Protocol Version 6 (IPv6) Addressing Architecture.

RFC3467 - Role of the Domain Name System (DNS).

RFC2822 - Internet Message Format.

RFC2821 - Simple Mail Transfer Protocol.

RFC2606 - Reserved Top Level DNS Names.

RFC2460 - Internet Protocol, Version 6 (IPv6) Specification.

RFC2308 - Negative Caching of DNS Queries (DNS NCACHE).

RFC2219 - Use of DNS Aliases for Network Services.

RFC2182 - Selection and Operation of Secondary DNS Servers.

RFC2181 - Clarifications to the DNS Specification.

RFC2142 - Mailbox Names for Common Services, Roles and Functions.

RFC2050 - Internet Registry IP Allocation Guidelines.

RFC1939 - Post Office Protocol - Version 3.

RFC1918 - Address Allocation for Private Internets.

RFC1912 - Common DNS Operational and Configuration Errors.

RFC1537 - Common DNS Data File Configuration Errors.

RFC1035 - Domain Names - Implementation and Specification.

RFC1034 - Domain Names - Concepts and Facilities.

RFC0937 - Post Office Protocol - Version 2.

RFC0793 - Transmission Control Protocol DARPA Internet Program Protocol Specification.

RFC0791 - Internet Protocol DARPA Internet Program Protocol Specification.

RFC0790 - Network Numbers.

The following RFC's are related, but have been superceded.

RFC3330 - Special-Use IPv4 Addresses.

RFC1725 - Post Office Protocol - Version 3.

RFC0822 - Standard for the Format of ARPA Internet Text Messages.

RFC0821 - Simple Mail Transfer Protocol.