[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.aesc.cz\/svet-www-jak-se-v-nem-orientovat\/#Article","mainEntityOfPage":"https:\/\/www.aesc.cz\/svet-www-jak-se-v-nem-orientovat\/","headline":"Sv\u011bt www: Jak se v n\u011bm orientovat","name":"Sv\u011bt www: Jak se v n\u011bm orientovat","description":"R\u00e1no vstanete, otev\u0159ete sv\u016fj po\u010d\u00edta\u010d \u010di laptop, spust\u00edte aplikaci prohl\u00ed\u017ee\u010de a bez dlouh\u00e9ho p\u0159em\u00fd\u0161len\u00ed zad\u00e1v\u00e1te www.facebook.comnebo www.seznam.cza jdete se pod\u00edvat na nov\u011b p\u0159\u00edchoz\u00ed e-maily. Tyto \u00fakony zvl\u00e1d\u00e1 ka\u017ed\u00fd u\u017eivatel sv\u011bta Internetu. Ale jen u\u017e\u0161\u00ed skupina u\u017eivatel\u016f v\u00ed, co se skr\u00fdv\u00e1 za p\u00e1r p\u00edsmeny p\u0159edstavuj\u00edc\u00ed seznam, Facebook atd. Chcete pochopit, co je to dom\u00e9na, pro\u010d nepou\u017e\u00edv\u00e1me […]","datePublished":"2026-03-01","dateModified":"2026-03-01","author":{"@type":"Person","@id":"https:\/\/www.aesc.cz\/author\/#Person","name":"","url":"https:\/\/www.aesc.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/633c8fb9866a4b0403353760c35030d9478298d226363320d7bf91cdc3dbe3b6?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/633c8fb9866a4b0403353760c35030d9478298d226363320d7bf91cdc3dbe3b6?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"aesc.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"url":"https:\/\/www.aesc.cz\/svet-www-jak-se-v-nem-orientovat\/","wordCount":411,"articleBody":"R\u00e1no vstanete, otev\u0159ete sv\u016fj po\u010d\u00edta\u010d \u010di laptop, spust\u00edte aplikaci prohl\u00ed\u017ee\u010de a bez dlouh\u00e9ho p\u0159em\u00fd\u0161len\u00ed zad\u00e1v\u00e1te www.facebook.comnebo www.seznam.cza jdete se pod\u00edvat na nov\u011b p\u0159\u00edchoz\u00ed e-maily. Tyto \u00fakony zvl\u00e1d\u00e1 ka\u017ed\u00fd u\u017eivatel sv\u011bta Internetu. Ale jen u\u017e\u0161\u00ed skupina u\u017eivatel\u016f v\u00ed, co se skr\u00fdv\u00e1 za p\u00e1r p\u00edsmeny p\u0159edstavuj\u00edc\u00ed seznam, Facebook atd. Chcete pochopit, co je to dom\u00e9na, pro\u010d nepou\u017e\u00edv\u00e1me jen IP adresy a co to vlastn\u011b ta IP adresa je? Pak \u010dtete d\u00e1le. Za\u010dneme od dom\u00e9ny Dom\u00e9na, spr\u00e1vn\u011b bychom m\u011bli ps\u00e1t dom\u00e9nov\u00e9 jm\u00e9no, je jednozna\u010dn\u00e1 (unik\u00e1tn\u00ed) adresa po\u010d\u00edta\u010de nebo po\u010d\u00edta\u010dov\u00e9 s\u00edt\u011b. Tedy v\u00e1mi nap\u0159\u00edklad zadan\u00fd facebook.comje dom\u00e9nov\u00e1 adresa. V\u0161echny tyto adresy jsou archivov\u00e1ny u nejv\u011bt\u0161\u00edho digit\u00e1ln\u00edho \u00falo\u017ei\u0161t\u011b web.archive.org. Svoji dom\u00e9nu samoz\u0159ejm\u011b mus\u00edte zaregistrovat, co\u017e u n\u00e1s zaji\u0161\u0165uje tzv. nic.cz. Vra\u0165me se nyn\u00ed k IP adres\u00e1m I zde m\u016f\u017eeme laicky \u0159\u00edci, \u017ee IP adresa je jednozna\u010dn\u00fd identifik\u00e1tor s\u00ed\u0165ov\u00e9ho rozhran\u00ed v po\u010d\u00edta\u010dov\u00e9 s\u00edti, kter\u00e1 ale mus\u00ed vyu\u017e\u00edvat IP protokolu, tj. s\u00ed\u0165 mus\u00ed um\u011bt p\u0159elo\u017eit zadanou adresu. Rozli\u0161ujeme dv\u011b verze IP adres: A. verze 4– p\u0159\u00edkladem m\u016f\u017ee b\u00fdt adresa 120.77.10.15, tj. \u010dtve\u0159ice decim\u00e1ln\u00edch \u010d\u00edslic odd\u011blen\u00fdch te\u010dkami, B. verze 6– zde uve\u010fme jako p\u0159\u00edklad adresu 2001:db8:0:1234:0:567:8:1, tj. osmice hexadecim\u00e1ln\u00edch \u010d\u00edslic odd\u011blen\u00fdch dvojte\u010dkou. D\u016fvodem existenci IP verze 6 je, \u017ee adres typu verze 4 je v dne\u0161n\u00ed dob\u011b m\u00e1lo a u\u017e byly vy\u010derp\u00e1ny. Proto jsou postupn\u011b nahrazov\u00e1ny nov\u011bj\u0161\u00ed verz\u00ed, kde existuje v\u00edce variant adres. Pokryj\u00ed tak pot\u0159eby dne\u0161n\u00edch u\u017eivatel\u016f Internetu. Mo\u017en\u00e1 se nyn\u00ed pt\u00e1te, jak to cel\u00e9 spolu souvis\u00ed. Odpov\u00edme v\u00e1m ot\u00e1zkou. Dok\u00e1\u017eete si p\u0159edstavit, \u017ee byste r\u00e1no m\u00edsto www.facebook.comzadali do prohl\u00ed\u017ee\u010de IP adresu verze 4, nebo je\u0161t\u011b h\u016f\u0159e verze 6?Pravd\u011bpodobn\u011b odpov\u00edte, \u017ee by bylo velmi obt\u00ed\u017en\u00e9 si tyto adresy zapamatovat. A pr\u00e1v\u011b proto vznikly dom\u00e9nov\u00e9 adresy, kter\u00e9 jsou pro b\u011b\u017en\u00e9 pou\u017e\u00edv\u00e1n\u00ed, zejm\u00e9na pro laickou ve\u0159ejnost, mnohem p\u0159\u00edv\u011btiv\u011bj\u0161\u00ed.                                                                                                                                                                                                                                                                                                                                                                                                "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Sv\u011bt www: Jak se v n\u011bm orientovat","item":"https:\/\/www.aesc.cz\/svet-www-jak-se-v-nem-orientovat\/#breadcrumbitem"}]}]