![]() ![]() It is common for these records to be used to point to ![]() Other RR's are permitted to be bound to the same name. Has a CNAME record bound to it, it is an alias, and no Which other appropriate RR's are associated. Name aliasing, by providing a link to another name with This record contains the Canonical Name (an FQDN with anĪssociated A record) of the host name to which this This record contains the numerical IP address associated This organisation is responsible forĮstablishing and maintaining conventions further down the The hierarchy reaches the level of an individual The names of the first few levels of the tree, at which point On the Internet, there are some established conventions for Required as configuration parameters in some circumstances. Intent, but in part because of this possibility, FQDNs are It is rare for this to occur without malicious Period, may be considered relative to some other Names that are completely specified all the way to theĬharacteristic of an FQDN is that it is written with a ![]() Partially-specified names can be resolved relative toĪdditional listed sub-domains other than the client's ownĭomain. Resolvers offer a search path facility, so that For instance, there is no way to indirectly refer Like filesystem pathnames, Domain Names can be written in anĪbsolute or relative manner, though there are some differences Progressively higher-level domains to the right, all the way Unlike most filesystem naming schemes, however, Domain NamesĪre written with the innermost name on the left, and Subordinate Domain Names (or both, or something else). Information about a specific host, or a directory of Each name recognised by the DNS is called a ![]() Information on one name to the records bound to another Provision for symbolic links, redirecting requests for There are directories of names, some of which may be Three nodes on the domain, but we could evenĭivide into subdomains such as The system can also be logically divided even further if one It includesĪ brief explanation and overview of the DNS further informationĬan be obtained from the DNS Resources Directory Simple, small domain with one Domain Name System Use of the Domain Name System has been discussed in previousĬhapters, without going into detail on the setup of the server Setting up a caching only name server 26.4.1. Secondaries, Caching, and the SOA record 26.1.7. ![]()
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