[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.t3m.sk\/viete-co-je-domain-name-system\/#Article","mainEntityOfPage":"https:\/\/www.t3m.sk\/viete-co-je-domain-name-system\/","headline":"Viete \u010do je Domain Name System?","name":"Viete \u010do je Domain Name System?","description":"Ka\u017ed\u00fd de\u0148 ich pou\u017e\u00edvame a vlastne ani nevieme o \u010do sa jedn\u00e1. Pre n\u00e1s s\u00fa to iba logicky usporiadan\u00e9 p\u00edsmenk\u00e1 a \u010d\u00edsla ktor\u00e9 n\u00e1m hovoria","datePublished":"2019-10-03","dateModified":"2023-04-27","author":{"@type":"Person","@id":"https:\/\/www.t3m.sk\/author\/#Person","name":"","url":"https:\/\/www.t3m.sk\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/d6cba3ab97c30e0df0e32548954cb6b1550f4672bd3a4687bf1118b122d757e8?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/d6cba3ab97c30e0df0e32548954cb6b1550f4672bd3a4687bf1118b122d757e8?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"t3m.sk","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.t3m.sk\/wp-content\/uploads\/img_a307653_w16828_t1572017597.jpg","url":"https:\/\/www.t3m.sk\/wp-content\/uploads\/img_a307653_w16828_t1572017597.jpg","height":0,"width":0},"url":"https:\/\/www.t3m.sk\/viete-co-je-domain-name-system\/","about":["Www"],"wordCount":506,"articleBody":"Ka\u017ed\u00fd de\u0148 ich pou\u017e\u00edvame a vlastne ani nevieme o \u010do sa jedn\u00e1. Pre n\u00e1s s\u00fa to iba logicky usporiadan\u00e9 p\u00edsmenk\u00e1 a \u010d\u00edsla ktor\u00e9 n\u00e1m hovoria o \u010dom je vlastne re\u010d. Ale v skuto\u010dnosti ak, zad\u00e1te n\u00e1zov akejko\u013evek str\u00e1nky tak jej skuto\u010dn\u00fd n\u00e1zov z poh\u013eadu servera m\u00f4\u017ee by\u0165 absol\u00fatne odli\u0161n\u00fd tomu \u010do vid\u00edte. To \u010do vid\u00edte v prehliada\u010di ako adresu je v\u00fdsledok pr\u00e1ce DNS. \u010ci\u017ee Domain Name System. \u00a0V\u0161etky apilk\u00e1cie ktor\u00e9 zo sebou komunikuj\u00fa po sieti toti\u017e vyu\u017e\u00edvaj\u00fa IP adresy. No predstava \u017ee namiesto www.stranka.sk mus\u00edte zada\u0165 http:\/\/168,188,245 je desiv\u00e1 sama o sebe. Naviac, aby ste teraz mali zo sebou st\u00e1le pozn\u00e1mkov\u00fd blok. Preto je hoci sa jedn\u00e1 o pomerne star\u00fa technol\u00f3giu, jej pr\u00ednos nenahradite\u013en\u00fd e\u0161te aj dnes.\u00a0Samotn\u00e1 komunik\u00e1cia toti\u017e v z\u00e1sade prebieha na medziU\u017e\u00edvate\u013e \u2013 Server.To prakticky znemen\u00e1 \u017ee vy ako u\u017e\u00edvate\u013e zad\u00e1te po\u017eiadavku do prehliada\u010da a t\u00e1 je n\u00e1sledne odoslan\u00e1 na server ktor\u00fa ju \u010falej adresuje na najbli\u017e\u0161\u00ed serverov\u00fd uzol kde je \u010falej adresovan\u00e1 pod\u013ea toho kam patr\u00ed. Napr\u00edklad firmy, krajiny, lokality ako takej, dom\u00e9nov\u00e9ho mena. A to aj v pr\u00edpade \u017ee najbli\u017e\u0161\u00ed uzol m\u00e1 v\u00fdpadok. Vtedy ho preberie z\u00e1lo\u017en\u00fd a tak \u010falej. Preto\u017ee s\u00fa celosvetovo prepojen\u00e9. Z tohto d\u00f4vodu jeho v\u00fdpadok\u00a0 m\u00f4\u017eete poc\u00edti\u0165 iba ako spomalen\u00fd internet oproti norm\u00e1lu.\u00a0Tak to by bolo trocha z \u00fapln\u00fdch z\u00e1kladov a teraz si povieme nie\u010do o tom ako prebieha \u00fatok na DNS. Predsa len to zauj\u00edma ka\u017ed\u00e9ho.\u00a0Vy ako u\u017e\u00edvate\u013epri zad\u00e1van\u00fd adresy zad\u00e1vate dopyt po ur\u010ditej odpovedi. N\u00e1sledne s\u00fa tieto d\u00e1ta odoslan\u00e9 cez sie\u0165 ktor\u00e1 sama o sebe je ako dia\u013enica. Jednoducho nast\u00fapi\u0165 jazdi\u0165 po nej m\u00f4\u017ee ka\u017ed\u00fd.\u00a0\u00dato\u010dn\u00edk,\u00a0 je u\u017e v tom \u010dase tie\u017e na sieti (dia\u013enici) a iba \u010dak\u00e1 na vhodn\u00fa obe\u0165. Tou v na\u0161om pr\u00edpade budete vy. Jeho \u00faloha je v tomto pr\u00edpade \u017ee v\u00e1s odo\u0161le falo\u0161n\u00fa inform\u00e1ciu, ktor\u00e1 sa tv\u00e1ri sa ako t\u00e1 ktor\u00e1 by v\u00e1m pri\u0161la od pravej str\u00e1nky (napr\u00edklad od banky) a tak v\u00e1s nasmeruje kam potrebuje.\u00a0 Spom\u00ednanej banke potom po\u0161le taktie\u017e falo\u0161n\u00fa spr\u00e1vu ktor\u00e1 vyzer\u00e1 ako od v\u00e1s. A to je v z\u00e1sade v\u0161etko \u010do potreboval urobi\u0165.\u00a0\u00a0\u00a0Server,v na\u0161om pr\u00edpade banka. S\u00edce rozli\u0161uje z ak\u00e9ho zariadenia a odklial sa prip\u00e1jate. No pokia\u013e dostane spr\u00e1vnu odpove\u010f v pri komunik\u00e1ci\u00ed s po sieti. Nem\u00e1 d\u00f4vod v\u00e1m alebo lep\u0161ie povedan\u00e9 \u00fato\u010dn\u00edkovi neudeli\u0165 pr\u00edstup. Preto\u017ee boli splnen\u00e9 v\u0161etky podmienky pre jeho udelenie. No \u017ee sa v skuto\u010dnosti jedn\u00e1 o podvod sa v\u00e4\u010d\u0161inou preval\u00ed a\u017e dos\u0165 neskoro.\u00a0                                                                                                                                                                                                                                                                                                                                                                                        4.4\/5 - (12 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Viete \u010do je Domain Name System?","item":"https:\/\/www.t3m.sk\/viete-co-je-domain-name-system\/#breadcrumbitem"}]}]