{"id":116,"date":"2008-03-21T21:23:41","date_gmt":"2008-03-21T20:23:41","guid":{"rendered":"http:\/\/www.newstechnology.eu\/it\/?p=116"},"modified":"2026-06-24T20:20:51","modified_gmt":"2026-06-24T18:20:51","slug":"dns-pubblici","status":"publish","type":"post","link":"https:\/\/www.newstechnology.eu\/it\/networking\/dns-pubblici.html","title":{"rendered":"DNS Pubblici"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Domain Name System<\/strong> (spesso indicato con <strong>DNS<\/strong>) \u00e8 un servizio utilizzato per la risoluzione di nomi in indirizzi IP e viceversa. Il servizio \u00e8 realizzato tramite un database distribuito, costituito di servers DNS.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ecco un elenco di <span>DNS pubblici:<\/span><\/p>\n\n\n\n<div align=\"justify\">  <\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><span>dns.nic.it: 193.205.245.5<br \/> dns2.nic.it: 193.205.245.8<br \/> nameserver.cnr.it: 194.119.192.34<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Se si conosce il nome di un provider si pu\u00f2 determinarne i suoi DNS. Se usate Linux avrete a disposizione le utility <a href=\"http:\/\/it.wikipedia.org\/wiki\/Whois\" target=\"_blank\">whois<\/a>  e <a href=\"http:\/\/it.wikipedia.org\/wiki\/Nslookup\" target=\"_blank\">nslookup<\/a>. Il primo serve a determinare chi ha registrato il nome di dominio, mentre il secondo interroga i DNS per risolvere l&#8217;indirizzo IP del server.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Per esempio prendiamo il sito <a href=\"https:\/\/www.windtre.it\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">windtre.it<\/a> noto provider, digiteremo:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>whois windtre.it<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">e risulter\u00e0<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Please note that the following result could be a subgroup of *<\/li>\n\n\n\n<li>the data contained in the database. *<\/li>\n\n\n\n<li>*<\/li>\n\n\n\n<li>Additional information can be visualized at: *<\/li>\n\n\n\n<li>http:\/\/web-whois.nic.it *<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">Domain: windtre.it<br \/>Status: ok<br \/>Signed: no<br \/>Created: 2014-09-26 12:00:18<br \/>Last Update: 2025-11-06 00:46:23<br \/>Expire Date: 2026-10-21<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Registrant<br \/>Organization: Wind Tre S.p.A.<br \/>Address: Via Leonardo da Vinci 1<br \/>Trezzano sul Naviglio<br \/>20090<br \/>MI<br \/>IT<br \/>Created: 2017-04-14 10:11:32<br \/>Last Update: 2020-01-14 14:21:06<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Admin Contact<br \/>Name: hidden<br \/>Organization: hidden<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Technical Contacts<br \/>Name: hidden<br \/>Organization: hidden<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Registrar<br \/>Organization: Reevo s.p.a.<br \/>Name: ITNET-REG<br \/>Web: https:\/\/www.it.net<br \/>DNSSEC: no<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nameservers<br \/>dns.wind.it<br \/>dns2.wind.it<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Potremo cos\u00ec individuare i\u00a0 DNS usati da wind<\/strong> con:<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\"><em>nslookup dns.wind.it<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Server: 1.1.1.1<br \/>Address: 1.1.1.1#53<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Non-authoritative answer:<br \/>Name: dns.wind.it<br \/>Address: 212.245.255.2<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ed allo stesso modo per il secondo DNS:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>nslookup dns2.wind.it<\/em><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Server: 1.1.1.1<br \/>Address: 1.1.1.1#53<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Non-authoritative answer:<br \/>Name: dns2.wind.it<br \/>Address: 212.245.158.66<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Se volete pi\u00f9 informazioni da un DNS server allora digitate<\/strong>:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>nslookup -querytype=&#8217;ANY&#8217; infostrada.it<\/em><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Server:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 192.168.1.1<br \/>Address:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 192.168.1.1#53<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Non-authoritative answer:<br \/>Name:&nbsp;&nbsp; infostrada.it<br \/>Address: 195.210.87.34<br \/>infostrada.it&nbsp;&nbsp; mail exchanger = 7 mailrelay07.wind.it.<br \/>infostrada.it&nbsp;&nbsp; mail exchanger = 7 mailrelay03.wind.it.<br \/>infostrada.it&nbsp;&nbsp; nameserver = ns2.libero.it.<br \/>infostrada.it&nbsp;&nbsp; nameserver = ns1.libero.it.<\/p>\n<\/blockquote>\n\n\n\n<div align=\"justify\">  <\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Di seguito viene riportato l&#8217;elenco dei <a href=\"http:\/\/it.wikipedia.org\/wiki\/Internet_Service_Provider\" target=\"_blank\">internet providers<\/a>  pi\u00f9 usati, a cui \u00e8 possibile accedere.<\/p>\n\n\n\n<div align=\"justify\">  <\/div>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>&nbsp;SERVER<\/strong><\/td><td><strong>INDIRIZZO&nbsp;<\/strong><\/td><td><strong>POP3 <br \/><\/strong><\/td><td><strong>SMTP&nbsp;<\/strong><\/td><td><strong><a href=\"http:\/\/it.wikipedia.org\/wiki\/Network_News_Transfer_Protocol\" target=\"_blank\">NNTP<\/a> &nbsp;<\/strong><\/td><td><strong>DNS&nbsp;<\/strong><\/td><td><strong>TELEFONO <br \/><\/strong><\/td><\/tr><tr><td>gmail<\/td><td>gmail.google.com\/gmail <\/td><td><span style=\"font-size: 8pt; font-family: Arial\">pop.gmail.com<\/span> <\/td><td><span style=\"font-size: 8pt; font-family: Arial\">smtp.gmail.com<\/span> <\/td><td>&nbsp;<\/td><td>216.239.32.10, 216.239.34.10,&nbsp; 216.239.36.10, 216.239.38.10 <\/td><td>&nbsp;<\/td><\/tr><tr><td>alice<\/td><td>www.alice.it&nbsp;<\/td><td>in.alice.it <\/td><td>out.alice.it <\/td><td>news.tin.it <\/td><td>151.99.125.5,&nbsp; 80.22.52.133<\/td><td>&nbsp;<\/td><\/tr><tr><td>aruba<\/td><td>www.aruba.it <\/td><td>pop3.aruba.it <\/td><td>smtp.aruba.it <\/td><td>&nbsp;<\/td><td>62.149.128.2,&nbsp; 62.149.132.2<\/td><td>&nbsp;<\/td><\/tr><tr><td>fastweb<\/td><td>www.fastweb.it <\/td><td>pop3.fastweb.it <\/td><td>smtp.fastweb.it <\/td><td>&nbsp;<\/td><td>213.140.2.12, 213.140.2.21<\/td><td>&nbsp;<\/td><\/tr><tr><td>libero<\/td><td>www.libero.it<\/td><td>popmail.libero.it<\/td><td>mail.libero.it<\/td><td>powernews.libero.it<\/td><td><span style=\"font-size: 8pt; font-family: Arial\">193.205.245.8 195.210.91.100 212.245.255.2 <\/span><\/td><td>7027020000<\/td><\/tr><tr><td>tele2<\/td><td>www.tele2.it<\/td><td>pop.tele2.it<\/td><td>smtp.tele2.it<\/td><td>&nbsp;<\/td><td><span style=\"font-size: 8pt; font-family: Arial\">130.244.127.161&nbsp; 130.244.127.169<\/span><\/td><td>&nbsp;<\/td><\/tr><tr><td>tiscali<\/td><td>www.tiscali.it<\/td><td>pop.tiscali.it<\/td><td>smtp.tiscali.it<\/td><td>news.tiscali.it<\/td><td><span style=\"font-size: 8pt; font-family: Arial\">195.130.224.18&nbsp; 195.130.225.129 213.205.32.70 213.205.36.70<\/span><\/td><td>&nbsp;<\/td><\/tr><tr><td>virgilio<\/td><td>www.virgilio.it<\/td><td>popmail.virgilio.it<\/td><td>smtp.virgilio.it<\/td><td>news.tin.it <\/td><td>194.243.154.62, 195.31.190.31&nbsp;<\/td><td>&nbsp;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fonte: <a href=\"https:\/\/www.newstechnology.eu\">www.newstechnology.eu<\/a> &nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p align=\"justify\"><strong>Domain Name System<\/strong> (spesso indicato con <strong>DNS<\/strong>) &egrave; un servizio utilizzato per la risoluzione di nomi in indirizzi IP e viceversa. Il servizio &egrave; realizzato tramite un database distribuito, costituito di servers DNS.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"wpai_meta_description":"","footnotes":""},"categories":[7],"tags":[488,491,490,489],"class_list":["post-116","post","type-post","status-publish","format-standard","hentry","category-networking","tag-dns","tag-dns-pubblici","tag-internet-providers","tag-isp"],"_links":{"self":[{"href":"https:\/\/www.newstechnology.eu\/it\/wp-json\/wp\/v2\/posts\/116","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newstechnology.eu\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newstechnology.eu\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newstechnology.eu\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newstechnology.eu\/it\/wp-json\/wp\/v2\/comments?post=116"}],"version-history":[{"count":3,"href":"https:\/\/www.newstechnology.eu\/it\/wp-json\/wp\/v2\/posts\/116\/revisions"}],"predecessor-version":[{"id":8506,"href":"https:\/\/www.newstechnology.eu\/it\/wp-json\/wp\/v2\/posts\/116\/revisions\/8506"}],"wp:attachment":[{"href":"https:\/\/www.newstechnology.eu\/it\/wp-json\/wp\/v2\/media?parent=116"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newstechnology.eu\/it\/wp-json\/wp\/v2\/categories?post=116"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newstechnology.eu\/it\/wp-json\/wp\/v2\/tags?post=116"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}