{"id":1286,"date":"2011-09-30T02:26:55","date_gmt":"2011-09-30T02:26:55","guid":{"rendered":"http:\/\/gigihfordanama.wordpress.com\/?p=1286"},"modified":"2012-08-08T00:08:06","modified_gmt":"2012-08-08T00:08:06","slug":"secondary-dns-dengan-memanfaatkan-layanan-gratis-dari-he-net","status":"publish","type":"post","link":"https:\/\/dosen.unila.ac.id\/gigih\/2011\/09\/30\/secondary-dns-dengan-memanfaatkan-layanan-gratis-dari-he-net\/","title":{"rendered":"Secondary DNS dengan memanfaatkan layanan Gratis dari HE.NET"},"content":{"rendered":"<p style=\"text-align:justify\"><em><strong>Domain Name System<\/strong> (<strong>DNS<\/strong>) <\/em>adalah suatu bentuk database yang terdistribusi, dimana pengelolaan secara lokal terhadap suatu data akan segera diteruskan ke seluruh jaringan (internet) dengan menggunakan skema <em>client-server.<\/em> Suatu program yang dinamakan <em>name server, <\/em>mengandung semua segmen informasi dari database dan juga merupakan <em>resolver <\/em>bagi client-client yang berhubungan ataupun menggunakannya, beruntunglah ada teknologi ini membantu memudahkan manusia untuk berkomunikasi di alam digital.<\/p>\n<p style=\"text-align:justify\">Di Universitas Lampung sendiri telah disiapkan 3 Name Server Public untuk meng-handle query resolv zone domain dan PTR record unila.ac.id ;<\/p>\n<ul>\n<li>Primary\u00a0\u00a0\u00a0\u00a0 Name Server :\u00a0 <strong>ns1.unila.ac.id\/103.3.46.2<\/strong><\/li>\n<li>Secondary Name Server : <strong>ns2.unila.ac.id\/103.3.46.3<\/strong><\/li>\n<li>Secondary Name Server : <strong>ns3.unila.ac.id\/103.3.46.4<\/strong><\/li>\n<\/ul>\n<p style=\"text-align:justify\">Belajar dari pengalaman kemarin yang sempat saya posting disini <a href=\"http:\/\/gigihfordanama.wordpress.com\/2011\/09\/29\/cname-and-mx-record-will-effect-email-problem\/\">http:\/\/gigihfordanama.wordpress.com\/2011\/09\/29\/cname-and-mx-record-will-effect-email-problem<\/a> <em>, <\/em>juga hasil dari diskusi dengan Bos Admin CS-UI (Pak Maman Sutarman) problem mail kadang kala juga berasal dari resolv dns yang tidak berhasil, sehingga perlu disiapkan Name Server dengan lokasi berbeda dengan ISP kita <em>, <\/em>lebih dari dua lebih baik<em>. <\/em> terhitung sejak kemarin akhirnya saya memutuskan untuk menggunakan layanan freeDNS dari Hurricane Electric<em> (<a href=\"http:\/\/dns.he.net\">http:\/\/dns.he.net<\/a>) , <\/em>dengan langkah praktis adalah sebagai berikut;<em><\/em><\/p>\n<ul>\n<li>Register di <a href=\"http:\/\/dns.he.net\">http:\/\/dns.he.net<\/a><\/li>\n<li>Buat Record Zone domain agar bisa transfer zone ke NS1.HE.NET<\/li>\n<li>\n<pre>zone \"unila.ac.id\" {\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 type master;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 file \"db.unila.mora\";\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 allow-query { any; };\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 allow-transfer { 216.218.186.2; };\n};<\/pre>\n<\/li>\n<li>Dan Tambahkan record NS dengan menambahkan entry NS1.HE.NET di zona unila tadi, kira kira seperti berikut<\/li>\n<li>\n<pre>$TTL\u00a0\u00a0\u00a0 3600\n@\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 SOA\u00a0\u00a0\u00a0\u00a0 ns1.unila.ac.id. gigih.unila.ac.id.\u00a0 (\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2011092704 ; serial\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3600\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ; Refresh\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 900\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ; Retry\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3600000\u00a0\u00a0\u00a0 ; Expire\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3600 )\u00a0\u00a0\u00a0\u00a0 ; Minimum\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 NS\u00a0\u00a0\u00a0\u00a0\u00a0 ns1.unila.ac.id.\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 NS\u00a0\u00a0\u00a0\u00a0\u00a0 ns2.unila.ac.id.\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 NS\u00a0\u00a0\u00a0\u00a0\u00a0 ns1.he.net.\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 MX 10\u00a0\u00a0 barracuda.unila.ac.id.\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 A\u00a0\u00a0\u00a0\u00a0\u00a0 103.3.46.1\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 MX 20\u00a0\u00a0 zimbra.unila.ac.id.\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 MX 30\u00a0\u00a0 mailgate.unila.ac.id.\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 AAAA\u00a0\u00a0\u00a0 2001:470:18:aa7::2<\/pre>\n<p><!--more--><\/p>\n<pre><\/pre>\n<\/li>\n<li>Akses http:\/\/dns.he.net<\/li>\n<li><a href=\"http:\/\/gigihfordanama.files.wordpress.com\/2011\/09\/1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-1287 aligncenter\" style=\"border:4px solid black\" src=\"http:\/\/gigihfordanama.files.wordpress.com\/2011\/09\/1.png?w=300\" alt=\"\" width=\"300\" height=\"197\" \/><\/a>Klik AddNew Slave dengan parameter berikut<\/li>\n<li><a href=\"http:\/\/gigihfordanama.files.wordpress.com\/2011\/09\/2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-1288\" style=\"border:4px solid black\" src=\"http:\/\/gigihfordanama.files.wordpress.com\/2011\/09\/2.jpg?w=300\" alt=\"\" width=\"300\" height=\"230\" \/><\/a>Tidak lama berselang HE.NET akan menerima transfer zone persis sama dengan Master Domain.<\/li>\n<li><a href=\"http:\/\/gigihfordanama.files.wordpress.com\/2011\/09\/3.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-1289\" style=\"border:4px solid black\" src=\"http:\/\/gigihfordanama.files.wordpress.com\/2011\/09\/3.jpg?w=300\" alt=\"\" width=\"300\" height=\"184\" \/><\/a><\/li>\n<\/ul>\n<p>Selesai, tinggal di Check apakah sudah bisa diresolv dari luar atau belum,<\/p>\n<pre>ns1 ~&gt;dig @ns5.speedcast.com unila.ac.id SOA\n\n; &lt;&lt;&gt;&gt; DiG 9.3.2-P1 &lt;&lt;&gt;&gt; @ns5.speedcast.com unila.ac.id SOA\n; (1 server found)\n;; global options:\u00a0 printcmd\n;; Got answer:\n;; -&gt;&gt;HEADER&lt;&lt;- opcode: QUERY, status: NOERROR, id: 58821\n;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 1\n\n;; QUESTION SECTION:\n;unila.ac.id.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 SOA\n\n;; ANSWER SECTION:\nunila.ac.id.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3600\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 SOA\u00a0\u00a0\u00a0\u00a0 ns1.unila.ac.id. gigih.unila.ac.id. 2011092704 3600 900 3600000 3600\n\n;; AUTHORITY SECTION:\nunila.ac.id.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 274\u00a0\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 NS\u00a0\u00a0\u00a0\u00a0\u00a0 ns2.unila.ac.id.\nunila.ac.id.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 274\u00a0\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 NS\u00a0\u00a0\u00a0\u00a0\u00a0 ns1.unila.ac.id.\nunila.ac.id.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 274\u00a0\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 NS\u00a0\u00a0\u00a0\u00a0\u00a0 ns1.he.net.\n\n;; ADDITIONAL SECTION:\nns1.he.net.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 20252\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 A\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 216.218.130.2\n\n;; Query time: 137 msec\n;; SERVER: 202.174.158.10#53(202.174.158.10)\n;; WHEN: Fri Sep 30 09:22:41 2011\n;; MSG SIZE\u00a0 rcvd: 147\nns1 ~&gt;<\/pre>\n<p>Jika ns1.he.net sudah muncul berarti sudah berhasil, tinggal check query ke NS1.HE.NET bertanya resolv domain unila,<\/p>\n<pre>ns1 ~&gt;dig @ns1.he.net www.unila.ac.id SOA\n\n; &lt;&lt;&gt;&gt; DiG 9.3.2-P1 &lt;&lt;&gt;&gt; @ns1.he.net www.unila.ac.id SOA\n; (1 server found)\n;; global options:\u00a0 printcmd\n;; Got answer:\n;; -&gt;&gt;HEADER&lt;&lt;- opcode: QUERY, status: NOERROR, id: 62638\n;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0\n\n;; QUESTION SECTION:\n;www.unila.ac.id.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 SOA\n\n;; AUTHORITY SECTION:\nunila.ac.id.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 86400\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 SOA\u00a0\u00a0\u00a0\u00a0 ns1.he.net. gigih.unila.ac.id. 2011092903 3600 900 3600000 3600\n\n;; Query time: 205 msec\n;; SERVER: 216.218.130.2#53(216.218.130.2)\n;; WHEN: Fri Sep 30 09:24:38 2011\n;; MSG SIZE\u00a0 rcvd: 85\n\nns1 ~&gt;\nns1 ~&gt;dig @ns1.he.net unila.ac.id MX\n\n; &lt;&lt;&gt;&gt; DiG 9.3.2-P1 &lt;&lt;&gt;&gt; @ns1.he.net unila.ac.id MX\n; (1 server found)\n;; global options:\u00a0 printcmd\n;; Got answer:\n;; -&gt;&gt;HEADER&lt;&lt;- opcode: QUERY, status: NOERROR, id: 7730\n;; flags: qr aa rd; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 3\n\n;; QUESTION SECTION:\n;unila.ac.id.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 MX\n\n;; ANSWER SECTION:\nunila.ac.id.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3600\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 MX\u00a0\u00a0\u00a0\u00a0\u00a0 20 zimbra.unila.ac.id.\nunila.ac.id.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3600\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 MX\u00a0\u00a0\u00a0\u00a0\u00a0 30 mailgate.unila.ac.id.\nunila.ac.id.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3600\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 MX\u00a0\u00a0\u00a0\u00a0\u00a0 10 barracuda.unila.ac.id.\n\n;; ADDITIONAL SECTION:\nbarracuda.unila.ac.id.\u00a0 3600\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 A\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 103.3.46.252\nzimbra.unila.ac.id.\u00a0\u00a0\u00a0\u00a0 3600\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 A\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 103.3.46.21\nmailgate.unila.ac.id.\u00a0\u00a0 3600\u00a0\u00a0\u00a0 IN\u00a0\u00a0\u00a0\u00a0\u00a0 A\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 103.3.46.5\n\n;; Query time: 228 msec\n;; SERVER: 216.218.130.2#53(216.218.130.2)\n;; WHEN: Fri Sep 30 09:25:09 2011\n;; MSG SIZE\u00a0 rcvd: 151\n\nns1 ~&gt;<\/pre>\n<p>Selamat kita sudah memiliki secondary Name Server yang di hosting diluar, dan ini gratis sodara-sodara.<\/p>\n<p>&nbsp;<\/p>\n<p>Ini saya cuplik hasil query test dari dnstool di Checko <a href=\"http:\/\/www.dns-info.cz\/en\/dns-test\/dom.php\">http:\/\/www.dns-info.cz\/en\/dns-test\/dom.php<\/a><\/p>\n<p>&nbsp;<\/p>\n<h2>Test results &#8211; unila.ac.id<\/h2>\n<table>\n<tbody>\n<tr>\n<td colspan=\"8\">Authoritative name servers<\/td>\n<\/tr>\n<tr>\n<td>DNS server<\/td>\n<td colspan=\"2\">TTL<\/td>\n<td>IPv4 address<\/td>\n<td>IPv4 glue<\/td>\n<td>IPv6 address<\/td>\n<td>serial No.<\/td>\n<td>reaction<\/td>\n<\/tr>\n<tr>\n<td>ns2.unila.ac.id<\/td>\n<td>1800<\/td>\n<td>30m<\/td>\n<td>103.3.46.3<\/td>\n<td>103.3.46.3<\/td>\n<td><\/td>\n<td>2011092704<\/td>\n<td>385 ms<\/td>\n<\/tr>\n<tr>\n<td>ns1.he.net<\/td>\n<td>1800<\/td>\n<td>30m<\/td>\n<td>216.218.130.2<\/td>\n<td><\/td>\n<td><\/td>\n<td>2011092704<\/td>\n<td>181 ms<\/td>\n<\/tr>\n<tr>\n<td>ns1.unila.ac.id (pri)<\/td>\n<td>1800<\/td>\n<td>30m<\/td>\n<td>103.3.46.2<\/td>\n<td>103.3.46.2<\/td>\n<td>2001:470:35:2b8::2<\/td>\n<td>2011092704<\/td>\n<td>383 ms<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<td colspan=\"7\">Subnets and autonomous systems of name servers<\/td>\n<\/tr>\n<tr>\n<td>name<\/td>\n<td>IPv4 address<\/td>\n<td>subnet<\/td>\n<td>ASN<\/td>\n<\/tr>\n<tr>\n<td>ns2.unila.ac.id<\/td>\n<td>103.3.46.3<\/td>\n<td>103.3.46.0\/24<\/td>\n<td>56237<\/td>\n<\/tr>\n<tr>\n<td>ns1.he.net<\/td>\n<td>216.218.130.2<\/td>\n<td>216.218.128.0\/17<\/td>\n<td>6939<\/td>\n<\/tr>\n<tr>\n<td>ns1.unila.ac.id<\/td>\n<td>103.3.46.2<\/td>\n<td>103.3.46.0\/24<\/td>\n<td>56237<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<td colspan=\"4\">SOA record (ns1.unila.ac.id)<\/td>\n<\/tr>\n<tr>\n<td>item<\/td>\n<td colspan=\"2\">value<\/td>\n<td>description<\/td>\n<\/tr>\n<tr>\n<td><strong><em>serial<\/em><\/strong><\/td>\n<td colspan=\"2\"><strong>2011092704<\/strong><\/td>\n<td>domain zone serial number<\/td>\n<\/tr>\n<tr>\n<td><strong><em>mname<\/em><\/strong><\/td>\n<td colspan=\"2\"><strong>ns1.unila.ac.id<\/strong><\/td>\n<td>name of primary name server for this zone<\/td>\n<\/tr>\n<tr>\n<td><strong><em>rname<\/em><\/strong><\/td>\n<td colspan=\"2\"><strong>gigih.unila.ac.id<\/strong><\/td>\n<td>zone administrator&#8217;s e-mail address<\/td>\n<\/tr>\n<tr>\n<td><strong><em>refresh<\/em><\/strong><\/td>\n<td><strong>3600<\/strong><\/td>\n<td>1h<\/td>\n<td>interval for checking availabilty of new zone on primary name server (seconds)<\/td>\n<\/tr>\n<tr>\n<td><strong><em>retry<\/em><\/strong><\/td>\n<td><strong>900<\/strong><\/td>\n<td>15m<\/td>\n<td>interval for repeating new zone check on primary name server when the previous attemp failed (seconds)<\/td>\n<\/tr>\n<tr>\n<td><strong><em>expire<\/em><\/strong><\/td>\n<td><strong>3600000<\/strong><\/td>\n<td>41d 16h<\/td>\n<td>time after which the zone is discarded when the secodary server is unable to contact primary name server to check new zone (seconds)<\/td>\n<\/tr>\n<tr>\n<td><strong><em>minimum<\/em><\/strong><\/td>\n<td><strong>3600<\/strong><\/td>\n<td>1h<\/td>\n<td>TTL for caching negative responses (seconds)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<td colspan=\"5\">NS records from the zone (ns1.unila.ac.id)<\/td>\n<\/tr>\n<tr>\n<td>domain name<\/td>\n<td colspan=\"2\">TTL<\/td>\n<td>value<\/td>\n<\/tr>\n<tr>\n<td>unila.ac.id<\/td>\n<td>3600<\/td>\n<td>1h<\/td>\n<td><strong>ns1.he.net<\/strong><\/td>\n<\/tr>\n<tr>\n<td>unila.ac.id<\/td>\n<td>3600<\/td>\n<td>1h<\/td>\n<td><strong>ns1.unila.ac.id<\/strong><\/td>\n<\/tr>\n<tr>\n<td>unila.ac.id<\/td>\n<td>3600<\/td>\n<td>1h<\/td>\n<td><strong>ns2.unila.ac.id<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<td colspan=\"6\">MX records from the zone (ns1.unila.ac.id)<\/td>\n<\/tr>\n<tr>\n<td>domain name<\/td>\n<td colspan=\"2\">TTL<\/td>\n<td>value<\/td>\n<td>IPv4 address<\/td>\n<td>IPv6 address<\/td>\n<\/tr>\n<tr>\n<td>unila.ac.id<\/td>\n<td>3600<\/td>\n<td>1h<\/td>\n<td><strong>10 barracuda.unila.ac.id<\/strong><\/td>\n<td>103.3.46.252<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>unila.ac.id<\/td>\n<td>3600<\/td>\n<td>1h<\/td>\n<td><strong>20 zimbra.unila.ac.id<\/strong><\/td>\n<td>103.3.46.21<\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>unila.ac.id<\/td>\n<td>3600<\/td>\n<td>1h<\/td>\n<td><strong>30 mailgate.unila.ac.id<\/strong><\/td>\n<td>103.3.46.5<\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<td colspan=\"5\">A records from the zone (ns1.unila.ac.id)<\/td>\n<\/tr>\n<tr>\n<td>domain name<\/td>\n<td colspan=\"2\">TTL<\/td>\n<td>value<\/td>\n<\/tr>\n<tr>\n<td>unila.ac.id<\/td>\n<td>3600<\/td>\n<td>1h<\/td>\n<td><strong>103.3.46.1<\/strong><\/td>\n<\/tr>\n<tr>\n<td>www.unila.ac.id<\/td>\n<td>3600<\/td>\n<td>1h<\/td>\n<td><strong>103.3.46.1<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<td colspan=\"5\">AAAA records from the zone (ns1.unila.ac.id)<\/td>\n<\/tr>\n<tr>\n<td>domain name<\/td>\n<td colspan=\"2\">TTL<\/td>\n<td>value<\/td>\n<\/tr>\n<tr>\n<td>unila.ac.id<\/td>\n<td>3600<\/td>\n<td>1h<\/td>\n<td><strong>2001:470:18:aa7::2<\/strong><\/td>\n<\/tr>\n<tr>\n<td>www.unila.ac.id<\/td>\n<td>3600<\/td>\n<td>1h<\/td>\n<td><strong>2001:470:18:aa7::2<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<td colspan=\"8\">SRV SIP records from the zone (ns1.unila.ac.id)<\/td>\n<\/tr>\n<tr>\n<td>domain name<\/td>\n<td colspan=\"2\">TTL<\/td>\n<td>pref<\/td>\n<td>weight<\/td>\n<td>target<\/td>\n<td>IPv4<\/td>\n<td>IPv6<\/td>\n<\/tr>\n<tr>\n<td colspan=\"3\">No records found<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<td colspan=\"5\">Results of DNS and domain tests<\/td>\n<\/tr>\n<tr>\n<td>test name and result description<\/td>\n<td>result<\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>DNS servers response<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-1.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">All name servers for this domain name respond to DNS queries<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>zone serial numbers<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-2.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">All name servers return the same serial number in SOA record<\/p>\n<ul>\n<li>2011092704<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>authoritativity of name servers for the domain<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-3.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">All name servers are authoritative for this domain name<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>attendance of required glue records at parent server<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-4.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">There are all required glue records on parent server<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>glue records and A records in zone matching<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-5.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Glue records match with A records in the zone<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>attendance of NS records in the zone<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-6.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Zone of the domain name contains NS records<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>NS records and authoritative name servers matching<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-7.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">NS records from the zone match NS records from parent server<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>recursive queries<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-8.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>WARNING<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Some nameservers provide recursive services. It is a bad idea to run authoritative and caching services on one DNS server, because it can cause difficulties in some conditions.<\/p>\n<ul>\n<li>ns2.unila.ac.id<\/li>\n<li>ns1.unila.ac.id<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>public zone transfer (AXFR)<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-9.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">None of name servers offer zone transfer (AXFR) for this domain name<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>name servers on public IP<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-10.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">All name servers are on public IP addresses<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>recommended number of name servers<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-11.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">The domain has recommended 2-7 name servers<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>TTL values in NS records on parent server<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-13.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">TTL values of NS records at parent server matches<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>TTL values in NS records in the zone<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-14.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">TTL values of NS records in the zone matches<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>reverse records of name servers<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-15.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Reverse records of DNS servers matches with their IP addresses<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>name servers in different autonomous systems (AS)<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-16.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">DNS servers are at least in 2 different autonomous systems (AS) thus their availability is not dependent on one network<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>name servers in different subnets<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-17.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">DNS servers are at least in 2 different subnets<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>different IPv4 addresses of name servers<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-18.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">DNS servers have different IP addresses<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>server from SOA MNAME as NS record<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-51.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">DNS server from SOA MNAME entry is listed as NS record in the zone<\/p>\n<ul>\n<li>ns1.unila.ac.id<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>MNAME entry check<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-52.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">SOA MNAME entry is syntactically valid<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>similar MNAME in SOA from all name servers<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-53.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">All DNS servers return the name MNAME value in SOA record<\/p>\n<ul>\n<li>ns1.unila.ac.id<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>RNAME entry check<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-54.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">SOA RNAME entry is syntactically valid<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>recommended format of serial number (YYYYMMDDnn)<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-55.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">The serial number of the zone has recommended syntax YYYYMMDDnn<\/p>\n<ul>\n<li>2011092704<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>REFRESH value check<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-56.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">SOA REFRESH value is within recommended range 20m-12h<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>RETRY value check<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-57.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">SOA RETRY value is less than REFRESH value and is at least 15m<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>EXPIRE value check<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-58.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>NOTICE<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">SOA EXPIRE value is higher than recommended maximum 31 days.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>MINIMUM value check<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-59.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">SOA MINIMUM value is within recommended range 1-3h<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>contact WWW server<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-101.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Connection to WWW server using HTTP protocol is all right<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>HTTP response code<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-102.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Response from WWW server is correct, no error detected<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>Mailserver software detection<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-103.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>INFO<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Software of WWW server has been determned<\/p>\n<ul>\n<li>Apache\/2.2.16<\/li>\n<li>FreeBSD<\/li>\n<li>mod_ssl\/2.2.16<\/li>\n<li>OpenSSL\/0.9.8n<\/li>\n<li>DAV\/2<\/li>\n<li>PHP\/5.2.14<\/li>\n<li>Suhosin-Patch<\/li>\n<li>PHP\/5.2.14<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>AAAA records presence<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-104.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>INFO<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Domain has A records and also AAAA records<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>TTL values in A records<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-105.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">TTL values in A records are equal<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>TTL values in AAAA records<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-106.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">TTL values in AAAA records are equal<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>Reverse records of WWW server<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-107.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Reverse records matches with their IP addresses<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>Number of MX records<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-201.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>INFO<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Domain has at least 2 MX records, thus the domain accepts e-mail messages and has a backup mailserver for the case of failure of primary mailserver.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>Syntax check of MX records<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-202.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">All MX records are syntactically correct<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>Resolve MX records to IP address<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-203.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">All MX records can be correctly resolved to IP address<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>MX records duplicity<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-204.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">MX records are not duplicated<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>TTL values of MX records<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-205.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">TTL values of MX records are equal<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>Reverse reverse records of MX records<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-206.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Reverse records match with their IP addresses<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>Connection with primary mailserver<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-207.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>ERROR<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">The mailserver does not accept e-mails for postmaster@domain<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>Connection to other mailservers<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-208.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>ERROR<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Can&#8217;t connect to some of backup mailservers<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>Mailserver software detection<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-209.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>INFO<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Mailserver software could not be detected<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>Detection of available extensions (ESMTP)<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-210.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Mailserver offer ESMTP extensions<\/p>\n<ul>\n<li>SIZE 100000000<\/li>\n<li>PIPELINING<\/li>\n<li>8BITMIME<\/li>\n<li>HELP<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>Greylisting<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-211.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>skipped<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>AAAA records presence<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-212.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>INFO<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">None of mailservers does not have IPv6 (AAAA record)<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>SPF records presence<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-213.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>INFO<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Domain does not have SFP or TXT (v=spf1) record<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>Open relay mailservers<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-214.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">None of mailserver is open relay, thus they accepts e-mails only for domains that are configured for.<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>Mail servers in DNSBL blacklists<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-215.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>PASS<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">None of mailservers is listed in any DNSBL servers thus they are not the source of spam<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>SRV SIP records presence<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-301.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>INFO<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Domain does not provide SIP services<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>Syntax check of SRV records<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-302.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>skipped<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>Resolve SIP servers from SRV records to IP addresses<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-303.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>skipped<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>SRV records duplicity<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-304.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>skipped<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>TTL values check for SRV records<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-305.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>skipped<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>Reverse records for SIP servers<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-306.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>skipped<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>AAAA records presence for SIP servers<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-307.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>skipped<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><\/td>\n<\/tr>\n<tr>\n<td>\u00a0<strong>DNSKEY record presence<\/strong> (<a href=\"http:\/\/www.dns-info.cz\/dns\/test-401.html\" target=\"_blank\">info<\/a>)<\/td>\n<td>INFO<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Domain Name System (DNS) adalah suatu bentuk database yang terdistribusi, dimana pengelolaan secara lokal terhadap suatu data akan segera diteruskan ke seluruh jaringan (internet) dengan menggunakan skema client-server. Suatu program yang dinamakan name server, mengandung semua segmen informasi dari database dan juga merupakan resolver bagi client-client yang berhubungan ataupun menggunakannya, beruntunglah ada teknologi ini membantu &hellip; <a href=\"https:\/\/dosen.unila.ac.id\/gigih\/2011\/09\/30\/secondary-dns-dengan-memanfaatkan-layanan-gratis-dari-he-net\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Secondary DNS dengan memanfaatkan layanan Gratis dari HE.NET&#8221;<\/span><\/a><\/p>\n","protected":false},"author":25,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1348,9],"tags":[1028],"class_list":["post-1286","post","type-post","status-publish","format-standard","hentry","category-kiat-sukses-menjadi-seorang-network-engineer-2","category-world-of-ict","tag-secondary-dns-dengan-memanfaatkan-layanan-gratis-dari-he-net"],"_links":{"self":[{"href":"https:\/\/dosen.unila.ac.id\/gigih\/wp-json\/wp\/v2\/posts\/1286"}],"collection":[{"href":"https:\/\/dosen.unila.ac.id\/gigih\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dosen.unila.ac.id\/gigih\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dosen.unila.ac.id\/gigih\/wp-json\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/dosen.unila.ac.id\/gigih\/wp-json\/wp\/v2\/comments?post=1286"}],"version-history":[{"count":0,"href":"https:\/\/dosen.unila.ac.id\/gigih\/wp-json\/wp\/v2\/posts\/1286\/revisions"}],"wp:attachment":[{"href":"https:\/\/dosen.unila.ac.id\/gigih\/wp-json\/wp\/v2\/media?parent=1286"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dosen.unila.ac.id\/gigih\/wp-json\/wp\/v2\/categories?post=1286"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dosen.unila.ac.id\/gigih\/wp-json\/wp\/v2\/tags?post=1286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}