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trace traceability traceable traced traceless tracer tracers tracery traces trachea tracheal tracheostomy tracheotomy tracing tracings track trackbed tracked tracker trackers tracking trackless tracks tracksuit tracksuits trackway trackways tract tractability tractable traction tractor tractors tracts trad trade tradeable traded tradein tradeins trademark trademarked trademarks trader traders trades tradesman tradesmen tradespeople trading tradings tradition traditional traditionalism traditionalist traditionalists traditionally traditions traduced traducer traffic trafficked trafficker traffickers trafficking tragedian tragedians tragedies tragedy tragic tragical tragically trail trailed trailer trailers trailing trails train trained trainee trainees trainer trainers training trainings trainload trains trait traitor traitorous traitorously traitors traits trajectories trajectory tram tramcar tramcars tramlines trammel tramp tramped tramping trample trampled tramples trampling trampoline trampolines trampolining trampolinist tramps trams tramway tramways trance trances tranche tranches tranny tranquil tranquillise tranquillised tranquilliser tranquillisers tranquillity tranquilly transact transacted transacting transaction transactional transactions transactor transatlantic transceiver transceivers transcend transcended transcendence transcendent transcendental transcendentally transcendentals transcending transcends transcontinental transcribe transcribed transcriber transcribers transcribes transcribing transcript transcription transcriptional transcriptions transcripts transducer transducers transduction transection transept transepts transfer transferability transferable transferee transferees transference transferral transferred transferring transfers transfiguration transfigured transfinite transfinitely transfixed transform transformation transformational transformations transformative transformed transformer transformers

transforming transforms transfused transfusing transfusion transfusions transgress transgressed transgresses transgressing transgression transgressions transgressive transgressor transgressors transhipment transience transient transiently transients transistor transistorised transistors transit transition transitional transitions transitive transitively transitivity transitoriness transitory transits translatable translate translated translates translating translation translational translations translator translators transliterate transliterated transliterates transliterating transliteration transliterations translucence translucency translucent transmigration transmissible transmission transmissions transmissive transmit transmits transmittable transmittance transmitted transmitter transmitters transmitting transmogrification transmogrifies transmogrify transmutation transmute transmuted transmuting transnational transom transonic transparencies transparency transparent transparently transpiration transpire transpired transpires transplant transplantation transplanted transplanting transplants transponder transponders transport transportability transportable transportation transported transporter transporters transporting transports transpose transposed transposes transposing transposition transpositions transverse transversely transvestism transvestite transvestites trap trapdoor trapdoors trapeze trappable trapped trapper trappers trapping trappings traps trash trashed trashy trauma traumas traumata traumatic traumatise traumatised travail travails travel travelled traveller travellers travelling travelogue travelogues travels traversal traversals traverse traversed traverses traversing travesties travesty trawl trawled trawler trawlers trawling trawlnet trawls tray trays treacherous treacherously treachery treacle tread treader treading treadle treadmill treadmills treads treason treasonable treasonous treasons treasure treasured treasurer treasurers treasurership treasures treasuries treasuring treasury treat treatable treated treaties treating treatise treatises

treatment treatments treats treaty treble trebled trebles trebling tree treeless trees treetop treetops trefoil trefoils trek trekked trekker trekkers trekking treks trellis trellised trellises tremble trembled trembler trembles trembling tremblingly tremblings tremendous tremendously tremolo tremor tremors tremulous tremulously tremulousness trench trenchant trenchantly trenched trencher trenches trenching trend trendier trendiest trendiness trends trendy trepanned trepidation trepidations trespass trespassed trespasser trespassers trespasses trespassing tress tresses trestle trestles trews triad triadic triads triage trial trials triangle triangles triangular triangulate triangulated triangulating triangulation triangulations triathlon triatomic tribal tribalism tribally tribe tribes tribesman tribesmen tribespeople tribulation tribulations tribunal tribunals tribune tribunes tributaries tributary tribute tributes trice trick tricked trickery trickier trickiest trickily tricking trickle trickled trickles trickling tricks trickster tricksters tricky tricolour tricolours tricycle tricycles trident tridents tried triennial trier tries triffid triffids trifle trifled trifler trifles trifling trigger triggered triggerhappy triggering triggers triglyceride trigonometric trigonometrical trigonometry trigram trigrams trigs trikes trilateral trilby trilingual trill trilled trilling trillion trillions trills trilobite trilobites trilogies trilogy trim trimaran trimmed trimmer trimmers trimming trimmings trimodal trims trinidad trinity trinket trinkets trio trip tripartite tripe triplane triple tripled triples triplet triplets triplex triplicate triplication tripling triply tripod

tripods tripoli tripped trippers tripping trips triptych tripwire tripwires trireme trisecting trisection trisector tristan trite triteness tritium triumph triumphal triumphalism triumphalist triumphant triumphantly triumphed triumphing triumphs triumvirate trivia trivial trivialisation trivialisations trivialise trivialised trivialises trivialising trivialities triviality trivially trod trodden troglodyte troglodytes troika troikas troll trolley trolleys trolling trollish trolls trombone trombones trombonist trombonists troop trooped trooper troopers trooping troops troopship trope tropes trophies trophy tropic tropical tropically tropics tropopause troposphere tropospheric trot trots trotted trotter trotters trotting troubadour troubadours trouble troubled troublemaker troublemakers troubles troubleshooter troubleshooters troubleshooting troublesome troublesomeness troubling trough troughs trounce trounced trounces trouncing troupe trouper troupers troupes trouser trousers trout trouts trove trowel trowels troy truancy truant truanting truants truce truces truck trucks truculence truculent truculently trudge trudged trudges trudging true trueblue truer truest truffle truffles truism truisms truly trump trumped trumpery trumpet trumpeted trumpeter trumpeters trumpeting trumpets trumps truncate truncated truncates truncating truncation truncations truncheon truncheons trundle trundled trundles trundling trunk trunking trunks trunnion trunnions truss trussed trusses trussing trust trusted trustee trustees trusteeship trustful trustfully trustfulness trusties trusting trustingly trusts trustworthiness trustworthy trusty truth truthful truthfully truthfulness truths try trying

What is DNS (Domain Name System)?

The domain name system (DNS) stores and associates many types of information with domain names, but most importantly, it translates domain names (computer hostnames) to IP addresses. It also lists mail exchange servers accepting e-mail for each domain. In providing a worldwide keyword-based redirection service, DNS is an essential component of contemporary Internet use.

Useful for several reasons, the DNS pre-eminently makes it possible to attach easy-to-remember domain names (such as "wikipedia.org") to hard-to-remember IP addresses (such as 66.30.200.105). Humans take advantage of this when they recite URLs and e-mail addresses. In a subsidiary function, the domain name system makes it possible for people to assign authoritative names without needing to communicate with a central registrar each time. From Wikipedia, the free encyclopedia