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The Internet Assigned Numbers Authority (IANA) is a standards organization that oversees global IP address allocation, autonomous system number allocation, root zone management in the Domain Name System (DNS), media types, and other Internet Protocol–related symbols and Internet numbers.
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This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The (TCP) and the (UDP) only need one for , bidirectional traffic. They usually use port numbers that match the services of the corresponding TCP or UDP implementation, if they exis
Lookups of IP address allocations are often limited to the larger Classless Inter-Domain Routing (CIDR) blocks (e.g., /24, /22, /16), because usually only the regional Internet registries (RIRs) and domain registrars run RWhois or WHOIS servers, although RWhois is intended to be run by even smaller local Internet registries, to provide more ...
A master of ceremonies, abbreviated MC or emcee, is the official host of a ceremony, staged event, conference, convention, or similar performance.. The term is earliest documented in the Catholic Church since the 5th century, where the master of ceremonies is an official of the Papal Court responsible for the proper and smooth conduct of the elaborate rituals involving the pope and the sacred ...
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All these types of meetings must be open to the public. The only time a public body is allowed to meet in private is in an executive session.. Executive sessions are used for more sensitive issues ...
Multiple PTR records are used, for example, when a web server supports many virtual hosts— i.e. multiple hostnames then resolve to a single address, and multiple hostnames will be returned for a PTR lookup for that shared address. However, DNS lookups typically occur over UDP, and since UDP has a limited message size, in extreme cases ...