{"id":66,"date":"2021-02-10T16:48:39","date_gmt":"2021-02-10T16:48:39","guid":{"rendered":"https:\/\/dev.sourcecode.sk\/wsczkb\/?post_type=ht_kb&p=66"},"modified":"2021-08-19T14:44:56","modified_gmt":"2021-08-19T12:44:56","slug":"cname-zaznamy","status":"publish","type":"ht_kb","link":"https:\/\/www.websupport.cz\/podpora\/kb\/cname-zaznamy\/","title":{"rendered":"CNAME z\u00e1znamy"},"content":{"rendered":"\n

CNAME z\u00e1znam<\/strong> (Canonical Name record)<\/em> slou\u017e\u00ed k nasm\u011brov\u00e1n\u00ed subdom\u00e9ny<\/strong> na c\u00edlovou (sub)dom\u00e9nu. V praxi je potom subdom\u00e9na sm\u011b\u0159ovan\u00e1 na IP, kter\u00e1 je uveden\u00e1 v DNS z\u00e1znamu c\u00edlov\u00e9 (sub)dom\u00e9ny. V\u00fdhodou tak je, \u017ee funk\u010dnost CNAME z\u00e1znamu nen\u00ed ovlivn\u011bn\u00e1 zm\u011bnou IP adresy.<\/p>\n\n\n\n

\n\n\n\n

Jak vypad\u00e1 CNAME z\u00e1znam<\/h2>\n\n\n\n
shop  600  IN  CNAME   www.myshoptet.com.<\/pre>\n\n\n\n
Za\u010d\u00e1te\u010dn\u00ed z\u00e1znam shop zna\u010d\u00ed, \u017ee CNAME z\u00e1znam plat\u00ed pro subdom\u00e9nu shop<\/strong>. 600 je parametr TTL<\/strong> a ur\u010duje, na jak dlouho si mohou servery poskytovatel\u016f internetu zapamatovat dan\u00e9 nastaven\u00ed DNS. \u010cas je uveden\u00fd v sekund\u00e1ch. IN CNAME<\/strong> definuje, \u017ee jde o CNAME z\u00e1znam. Posledn\u00ed z\u00e1znam je c\u00edlov\u00fd CNAME z\u00e1znam, kam sm\u011b\u0159uje subdom\u00e9na.<\/p>\n\n\n\n
<\/div>\n\n\n\n
Zm\u011bna CNAME z\u00e1znamu<\/h2>\n\n\n\n
1. P\u0159ihlaste se do WebAdminu<\/a><\/strong>
2. Klikn\u011bte v seznamu Va\u0161ich slu\u017eeb na dom\u00e9nu
3. V lev\u00e9m menu vyberte polo\u017eku DNS<\/strong> a proklikn\u011bte se na z\u00e1lo\u017eku CNAME<\/strong>
4. Pro vytvo\u0159en\u00ed nov\u00e9ho z\u00e1znamu sta\u010d\u00ed kliknout na modr\u00e9 tla\u010d\u00edtko Vytvo\u0159it nov\u00fd z\u00e1znam<\/strong><\/p>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n
CNAME je nad\u0159azen\u00fd nad A a MX z\u00e1znamy. Prohl\u00ed\u017ee\u010d nap\u0159ed p\u0159e\u010dte CNAME z\u00e1znam, a kdy\u017e \u017e\u00e1dn\u00fd CNAME z\u00e1znam neexistuje, dopt\u00e1v\u00e1 se na konkr\u00e9tn\u00ed IP adresu v A z\u00e1znamech. <\/p>\n\n\n\n
Pro dos\u00e1hnut\u00ed podobn\u00e9ho efektu s hlavn\u00ed dom\u00e9nou vyu\u017eijte ANAME z\u00e1znamy. CNAME z\u00e1znamy jsou mo\u017en\u00e9 jen pro subdom\u00e9ny.<\/p>\n\n\n\n
<\/div>\n\n\n\n
Formul\u00e1\u0159 pro \u00fapravu CNAME z\u00e1znamu<\/h2>\n\n\n\n
\"\"<\/figure>\n\n\n\n
  • Do \u0159\u00e1dku Pro adresu<\/strong> zadejte subdom\u00e9nu, kterou chcete pomoc\u00ed CNAME z\u00e1znamu p\u0159esm\u011brovat<\/li>
  • Do \u0159\u00e1dku Hodnota<\/strong> zad\u00e1v\u00e1te c\u00edl p\u0159esm\u011brov\u00e1n\u00ed<\/li>
  • Parametr TTL<\/strong> ur\u010duje, na jak dlouho si mohou servery poskytovatel\u016f internetu zapamatovat dan\u00e9 nastaven\u00ed. \u010cas je uveden\u00fd v sekund\u00e1ch. Do Pozn\u00e1mky<\/strong> m\u016f\u017eete napsat cokoliv, p\u0159\u00edpadn\u011b j\u00ed nechat pr\u00e1zdnou<\/li>
  • Po vypln\u011bn\u00ed formul\u00e1\u0159e Ulo\u017ete zm\u011bny<\/strong><\/li><\/ul>\n\n\n\n
    Zm\u011bna CNAME z\u00e1znam\u016f m\u016f\u017ee trvat a\u017e 2 hodiny.<\/p>\n\n\n\n
    <\/div>\n\n\n\n
    Smaz\u00e1n\u00ed CNAME z\u00e1znamu<\/h2>\n\n\n\n
    Klikn\u011bte v tabulce vlevo na ozna\u010dova\u010d a ozna\u010dte po\u017eadovan\u00fd CNAME z\u00e1znam (resp. v\u00edce z\u00e1znam\u016f) a n\u00e1sledn\u011b klikn\u011bte na Smazat<\/strong>. Pokud jste necht\u011bn\u011b smazali pot\u0159ebn\u00fd z\u00e1znam, m\u016f\u017eete ho obnovit v sekci Historie zm\u011bn<\/strong>. Sta\u010d\u00ed si v seznamu vyhledat danou zm\u011bnu a kliknout na obnovit. V\u0161echny DNS nastaven\u00ed se vr\u00e1t\u00ed do stavu, v jak\u00e9m byly p\u0159ed zm\u011bnou CNAME z\u00e1znamu.<\/p>\n\n\n\n
    \"\"<\/figure>\n\n\n\n
    <\/div>\n\n\n\n
    P\u0159\u00edklady<\/h2>\n\n\n\n
    Nastaven\u00ed CNAME z\u00e1znamu pro subdom\u00e9nu shop na slu\u017ebu Shoptet<\/strong><\/p>\n\n\n\n
    Dom\u00e9na shop.mojedomena.<\/em>cz m\u00e1 pomoc\u00ed CNAME z\u00e1znamu p\u0159i\u0159azen\u00fd z\u00e1znam www.myshoptet.com. To znamen\u00e1, \u017ee po zadan\u00ed adresy shop.mojedomena.cz se v prohl\u00ed\u017ee\u010di zobraz\u00ed obsah vytvo\u0159en\u00fd na slu\u017eb\u011b Shoptet<\/strong>. Z\u00e1znam bude vypadat takto:<\/p>\n\n\n\n
    shop  600  IN  CNAME   www.myshoptet.com.
    <\/pre>\n","protected":false},"excerpt":{"rendered":"
    CNAME z\u00e1znam (Canonical Name record) slou\u017e\u00ed k nasm\u011brov\u00e1n\u00ed subdom\u00e9ny na c\u00edlovou (sub)dom\u00e9nu. V praxi je potom subdom\u00e9na sm\u011b\u0159ovan\u00e1 na IP, kter\u00e1 je uveden\u00e1 v DNS z\u00e1znamu c\u00edlov\u00e9 (sub)dom\u00e9ny. V\u00fdhodou tak je, \u017ee funk\u010dnost CNAME z\u00e1znamu nen\u00ed ovlivn\u011bn\u00e1 zm\u011bnou IP adresy. Jak vypad\u00e1 CNAME z\u00e1znam shop 600 IN CNAME www.myshoptet.com. Za\u010d\u00e1te\u010dn\u00ed z\u00e1znam…<\/p>\n","protected":false},"author":3,"template":"","format":"standard","meta":{"footnotes":""},"ht-kb-category":[12],"ht-kb-tag":[],"class_list":["post-66","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-dns-zaznamy"],"yoast_head":"\nCNAME z\u00e1znamy - Websupport Centrum n\u00e1pov\u011bdy<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.websupport.cz\/podpora\/kb\/cname-zaznamy\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CNAME z\u00e1znamy - Websupport Centrum n\u00e1pov\u011bdy\" \/>\n<meta property=\"og:description\" content=\"CNAME z\u00e1znam (Canonical Name record) slou\u017e\u00ed k nasm\u011brov\u00e1n\u00ed subdom\u00e9ny na c\u00edlovou (sub)dom\u00e9nu. V praxi je potom subdom\u00e9na sm\u011b\u0159ovan\u00e1 na IP, kter\u00e1 je uveden\u00e1 v DNS z\u00e1znamu c\u00edlov\u00e9 (sub)dom\u00e9ny. V\u00fdhodou tak je, \u017ee funk\u010dnost CNAME z\u00e1znamu nen\u00ed ovlivn\u011bn\u00e1 zm\u011bnou IP adresy. Jak vypad\u00e1 CNAME z\u00e1znam shop 600 IN CNAME www.myshoptet.com. 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