[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/elgordo.cz\/druhy-pocitacovych-siti\/#Article","mainEntityOfPage":"https:\/\/elgordo.cz\/druhy-pocitacovych-siti\/","headline":"Druhy po\u010d\u00edta\u010dov\u00fdch s\u00edt\u00ed","name":"Druhy po\u010d\u00edta\u010dov\u00fdch s\u00edt\u00ed","description":"Internet nen\u00ed s\u00e1m, nen\u00ed ojedin\u011bl\u00fd. Je nejv\u011bt\u0161\u00ed, to ano, ale m\u00e1 spousty mal\u00fdch brat\u0159\u00ed\u010dk\u016f a my si o nich n\u011bco m\u00e1lo \u0159ekneme. Nejprve si je…","datePublished":"2019-10-24","dateModified":"2019-10-24","author":{"@type":"Person","@id":"https:\/\/elgordo.cz\/author\/#Person","name":"","url":"https:\/\/elgordo.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/2d2e3fdaba6370eba756fb4048c695326686ff29010a0df4d58b27c20544521d?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/2d2e3fdaba6370eba756fb4048c695326686ff29010a0df4d58b27c20544521d?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"elgordo.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/elgordo.cz\/wp-content\/uploads\/img_a357757_w2693_t1572170440.jpg","url":"https:\/\/elgordo.cz\/wp-content\/uploads\/img_a357757_w2693_t1572170440.jpg","height":0,"width":0},"url":"https:\/\/elgordo.cz\/druhy-pocitacovych-siti\/","wordCount":414,"articleBody":"Internet nen\u00ed s\u00e1m, nen\u00ed ojedin\u011bl\u00fd. Je nejv\u011bt\u0161\u00ed, to ano, ale m\u00e1 spousty mal\u00fdch brat\u0159\u00ed\u010dk\u016f a my si o nich n\u011bco m\u00e1lo \u0159ekneme. Nejprve si je v\u0161ak rozd\u011bl\u00edme. \u00b7 Peer-to-peer \u00b7 klient-server To jsou s\u00edt\u011b podle typ\u016f, ale je\u0161t\u011b je m\u016f\u017eeme rozd\u011blit i podle po\u010dtu mo\u017en\u00fdch p\u0159ipojen\u00fdch u\u017eivatel\u016f. \u00b7 Internet \u00b7 intranet \u00b7 extranet \u00b7 VPN  Hned ta \u00fapln\u011b prvn\u00ed, psan\u00e1 takto, P2P, tak ta je prav\u00fdm opakem t\u00e9 druh\u00e9, toti\u017e klient-server. Je to spojen\u00ed mezi po\u010d\u00edta\u010di \u201enap\u0159\u00edmo\u201c. Ka\u017ed\u00fd stroj je tedy s\u00e1m za sebe a m\u016f\u017ee nab\u00edzet slu\u017eby. V\u00fdhoda je, \u017ee \u010d\u00edm v\u00edce lid\u00ed se p\u0159ipoj\u00ed, t\u00edm se rychlost zv\u00fd\u0161\u00ed. (Nemus\u00ed se d\u011blit o kapacitu serveru.) U druh\u00e9ho p\u0159ipojen\u00ed to je pr\u00e1v\u011b obr\u00e1cen\u011b. Klient-servernem\u00e1 smyslu rozeb\u00edrat, to zn\u00e1te v\u0161ichni a vlastn\u011b je to vysv\u011btleno i v\u00fd\u0161e. Internetje tot\u00e9\u017e, prost\u011b je to propojen\u00ed mezi po\u010d\u00edta\u010di, servery ko\u0159enov\u00fdmi, jmenn\u00fdmi, a tak a tak d\u00e1le. Intranetje ov\u0161em n\u011bco jin\u00e9ho. To je s\u00ed\u0165 ur\u010den\u00e1 pro \u00fazk\u00fd okruh lid\u00ed. Nap\u0159\u00edklad ve \u0161kole pro \u017e\u00e1ky, v podniku pro zam\u011bstnance. Zde je t\u0159eba v\u011bt\u0161inou zn\u00e1t p\u0159\u00edstupov\u00e9 heslo. Pokud jej nezn\u00e1te, nep\u0159ipoj\u00edte se. Takov\u00e1 s\u00ed\u0165 vy\u017eaduje v\u011bt\u0161inou vlastn\u00edho spr\u00e1vce, a vlastn\u00ed strukturu. Extranetje skoro tot\u00e9\u017e, jen nen\u00ed p\u0159\u00edmou sou\u010d\u00e1st\u00ed. Jako p\u0159\u00edklad zvolme zase \u0161kolu. Tam m\u00e1 vlastn\u00ed intranet, ale chce, aby do n\u011bj mohli i \u017e\u00e1ci ze \u0161koly pobo\u010dn\u00e9. Spr\u00e1vce s\u00edt\u011b to povol\u00ed a ta se pak m\u016f\u017ee p\u0159ipojit vlastn\u00ed extranetovou s\u00edt\u00ed.  Posledn\u00ed zkratka znamen\u00e1 Virtual Private Network. U\u017e z n\u00e1zvu je jasn\u00e9 k \u010demu bude slou\u017eit. Spojen\u00e9 po\u010d\u00edta\u010de mezi sebou komunikuj\u00ed, ale doch\u00e1z\u00ed k ov\u011b\u0159ov\u00e1n\u00ed, v\u011bt\u0161inou n\u011bjak\u00fdm digit\u00e1ln\u00edm certifik\u00e1tem, ale i jinak. V\u00fdhoda je nap\u0159\u00edklad ta, \u017ee v\u00e1\u0161 poskytovatel nevid\u00ed, kam na kterou str\u00e1nku kouk\u00e1te, kam se vlastn\u011b p\u0159ipojujete. Ani jedna strana toti\u017e nevid\u00ed IP adresu, ale pouze adresu VPN serveru. Pokud jste n\u011bco z napsan\u00e9ho nepochopili, nic si z toho ned\u011blejte. Problematika s\u00edt\u00ed se ned\u00e1 vyj\u00e1d\u0159it jedn\u00edm \u010dl\u00e1nkem, ale pokud jste pochopili, tak je to jen a jen dob\u0159e.                                                                                                                                                                                                                                                                                                                                                                                                 "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Druhy po\u010d\u00edta\u010dov\u00fdch s\u00edt\u00ed","item":"https:\/\/elgordo.cz\/druhy-pocitacovych-siti\/#breadcrumbitem"}]}]