{"id":8983,"date":"2025-12-09T11:13:37","date_gmt":"2025-12-09T11:13:37","guid":{"rendered":"https:\/\/aborrego.inscastellbisbal.net\/?p=8983"},"modified":"2025-12-10T10:28:12","modified_gmt":"2025-12-10T10:28:12","slug":"configuracio-del-dns-master-a-debian","status":"publish","type":"post","link":"https:\/\/aborrego.inscastellbisbal.net\/en\/2025\/12\/09\/configuracio-del-dns-master-a-debian\/","title":{"rendered":"Configuraci\u00f3 del DNS Master a Debian"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"8983\" class=\"elementor elementor-8983\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f7f16d3 elementor-section-height-min-height elementor-section-items-top elementor-section-boxed elementor-section-height-default wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no elementor-invisible\" data-id=\"f7f16d3\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;animation&quot;:&quot;fadeIn&quot;,&quot;shape_divider_top&quot;:&quot;mountains&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t<div class=\"elementor-shape elementor-shape-top\" aria-hidden=\"true\" data-negative=\"false\">\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 1000 100\" preserveaspectratio=\"none\">\n\t<path class=\"elementor-shape-fill\" opacity=\"0.33\" d=\"M473,67.3c-203.9,88.3-263.1-34-320.3,0C66,119.1,0,59.7,0,59.7V0h1000v59.7 c0,0-62.1,26.1-94.9,29.3c-32.8,3.3-62.8-12.3-75.8-22.1C806,49.6,745.3,8.7,694.9,4.7S492.4,59,473,67.3z\"\/>\n\t<path class=\"elementor-shape-fill\" opacity=\"0.66\" d=\"M734,67.3c-45.5,0-77.2-23.2-129.1-39.1c-28.6-8.7-150.3-10.1-254,39.1 s-91.7-34.4-149.2,0C115.7,118.3,0,39.8,0,39.8V0h1000v36.5c0,0-28.2-18.5-92.1-18.5C810.2,18.1,775.7,67.3,734,67.3z\"\/>\n\t<path class=\"elementor-shape-fill\" d=\"M766.1,28.9c-200-57.5-266,65.5-395.1,19.5C242,1.8,242,5.4,184.8,20.6C128,35.8,132.3,44.9,89.9,52.5C28.6,63.7,0,0,0,0 h1000c0,0-9.9,40.9-83.6,48.1S829.6,47,766.1,28.9z\"\/>\n<\/svg>\t\t<\/div>\n\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-d4a3983\" data-id=\"d4a3983\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-74b4108 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"74b4108\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;_animation_delay&quot;:500}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Configuraci\u00f3 del DNS Master a debian<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-80c73a4 elementor-widget elementor-widget-spacer\" data-id=\"80c73a4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-be23a11 elementor-widget elementor-widget-spacer\" data-id=\"be23a11\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-9a0c00e\" data-id=\"9a0c00e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-52efb2b elementor-align-left elementor-widget elementor-widget-button\" data-id=\"52efb2b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-float\" href=\"https:\/\/aborrego.inscastellbisbal.net\/en\/repte-2-2-makrosoft\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Tornar al repte 2.2<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t<div class=\"elementor-element elementor-element-8587706 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no e-con e-parent\" data-id=\"8587706\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-69892fe elementor-widget elementor-widget-spacer\" data-id=\"69892fe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d61770a elementor-widget elementor-widget-text-editor\" data-id=\"d61770a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3 dir=\"auto\"><b>Pas 1: Instal\u00b7laci\u00f3 de BIND9 i les utilitats<\/b><\/h3><ul><li>Actualitza la llista de paquets i instal\u00b7la BIND9<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-adaf289 elementor-widget elementor-widget-code-block-for-elementor\" data-id=\"adaf289\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-block-for-elementor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-javascript'># Actualitza la llista de paquets\nsudo apt update\n\n# Instal&middot;la el paquet BIND9 i les utilitats\nsudo apt install bind9 bind9utils -y<\/code><\/pre>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b4d334c elementor-widget elementor-widget-image\" data-id=\"b4d334c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"700\" height=\"466\" src=\"https:\/\/aborrego.inscastellbisbal.net\/wp-content\/uploads\/2025\/12\/Selection_027.png\" class=\"attachment-large size-large wp-image-8992\" alt=\"\" srcset=\"https:\/\/aborrego.inscastellbisbal.net\/wp-content\/uploads\/2025\/12\/Selection_027.png 726w, https:\/\/aborrego.inscastellbisbal.net\/wp-content\/uploads\/2025\/12\/Selection_027-300x200.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3fd3c61 elementor-widget elementor-widget-text-editor\" data-id=\"3fd3c61\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>El servei BIND9 s&#8217;iniciar\u00e0 autom\u00e0ticament despr\u00e9s de la instal\u00b7laci\u00f3, per\u00f2 encara no far\u00e0 res \u00fatil amb el teu domini.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a27d9c6 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no e-con e-parent\" data-id=\"a27d9c6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e0749bf elementor-widget elementor-widget-text-editor\" data-id=\"e0749bf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3 dir=\"auto\"><strong>Pas 2: Configuraci\u00f3 de la Zona al Fitxer Local<\/strong><\/h3><ul><li>Has d&#8217;indicar a BIND9 que \u00e9s el <b>Master<\/b> (Mestre) per al teu domini. Aix\u00f2 es fa al fitxer de configuraci\u00f3 local.<\/li><li>Edita el fitxer <code>\/etc\/bind\/named.conf.local<\/code>:<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-58e10e2 elementor-widget elementor-widget-code-block-for-elementor\" data-id=\"58e10e2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-block-for-elementor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-javascript'>sudo nano \/etc\/bind\/named.conf.local<\/code><\/pre>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7b0a914 elementor-widget elementor-widget-text-editor\" data-id=\"7b0a914\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p dir=\"auto\">Afegim el seg\u00fcent al final del fitxer:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e366722 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no e-con e-parent\" data-id=\"e366722\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f2e2e50 elementor-widget elementor-widget-code-block-for-elementor\" data-id=\"f2e2e50\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-block-for-elementor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-javascript'>\/\/ Zona directa per illa4.local\nzone &quot;illa4.local&quot; {\n    type master;\n    file &quot;\/etc\/bind\/db.illa4.local&quot;;\n};\n\n\/\/ Zona inversa per la xarxa 10.4.0.0\/25 (reverse lookup per 10.4.0.x)\nzone &quot;0.4.10.in-addr.arpa&quot; {\n    type master;\n    file &quot;\/etc\/bind\/db.10.4.0&quot;;\n};<\/code><\/pre>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f2886b5 elementor-widget elementor-widget-text-editor\" data-id=\"f2886b5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>La zona directa gestiona noms a IPs (A records).<\/li><li>La zona inversa gestiona IPs a noms (PTR records). Per la xarxa 10.4.0.0\/25, utilitzem &#8220;0.4.10.in-addr.arpa&#8221; (que cobreix el \/24 sencer, per\u00f2 nom\u00e9s afegirem entrades per la teva subxarxa). Si nom\u00e9s vols \/25, aix\u00f2 funciona igualment.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d8063e3 elementor-widget elementor-widget-text-editor\" data-id=\"d8063e3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3 dir=\"auto\"><strong>1.4 Creaci\u00f3 dels Fitxers de Zona<\/strong><\/h3><h5 dir=\"auto\"><strong>Fitxer de zona directa: \/etc\/bind\/db.illa4.local<\/strong><\/h5><p dir=\"auto\">Copia una plantilla:<\/p><ul><li><p dir=\"auto\">Edita \/etc\/bind\/db.illa4.local:<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-54b753b e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no e-con e-parent\" data-id=\"54b753b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d611506 elementor-widget elementor-widget-code-block-for-elementor\" data-id=\"d611506\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-block-for-elementor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-javascript'>cp \/etc\/bind\/db.local \/etc\/bind\/db.illa4.local\nnano \/etc\/bind\/db.illa4.local<\/code><\/pre>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-02a1bbc e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no e-con e-parent\" data-id=\"02a1bbc\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e980cad elementor-widget elementor-widget-text-editor\" data-id=\"e980cad\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><p dir=\"auto\">Substituim el contingut amb aix\u00f2 (adapta si cal):<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1817892 elementor-widget elementor-widget-code-block-for-elementor\" data-id=\"1817892\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-block-for-elementor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-javascript'>;\n; BIND data file for illa4.local\n;\n$TTL    604800\n@       IN      SOA     ns1.illa4.local. root.illa4.local. (\n                              1         ; Serial (incrementa cada canvi)\n                         604800         ; Refresh\n                          86400         ; Retry\n                        2419200         ; Expire\n                         604800 )       ; Negative Cache TTL\n;\n@       IN      NS      ns1.illa4.local.\nns1     IN      A       10.4.0.10<\/code><\/pre>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-873d205 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no e-con e-parent\" data-id=\"873d205\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-40a38b2 elementor-widget elementor-widget-text-editor\" data-id=\"40a38b2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3 dir=\"auto\"><strong>1.5 Fitxer de zona inversa: \/etc\/bind\/db.10.4.0<\/strong><\/h3><p dir=\"auto\">Copia una plantilla:<\/p><ul><li><p dir=\"auto\">Edita \/etc\/bind\/db.10.4.0:<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c51c3c1 elementor-widget elementor-widget-code-block-for-elementor\" data-id=\"c51c3c1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-block-for-elementor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-javascript'>cp \/etc\/bind\/db.127 \/etc\/bind\/db.10.4.0\nnano \/etc\/bind\/db.10.4.0<\/code><\/pre>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-322921f elementor-widget elementor-widget-text-editor\" data-id=\"322921f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><p dir=\"auto\">Substituim el contingut amb aix\u00f2 (adapta si cal):<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-00b780b elementor-widget elementor-widget-code-block-for-elementor\" data-id=\"00b780b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-block-for-elementor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-javascript'>;\n; BIND reverse data file for 10.4.0.0\/25\n;\n$TTL    604800\n@       IN      SOA     ns1.illa4.local. root.illa4.local. (\n                              1         ; Serial\n                         604800         ; Refresh\n                          86400         ; Retry\n                        2419200         ; Expire\n                         604800 )       ; Negative Cache TTL\n;\n@       IN      NS      ns1.illa4.local.\n10      IN      PTR     ns1.illa4.local.<\/code><\/pre>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ddc51de elementor-widget elementor-widget-text-editor\" data-id=\"ddc51de\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p dir=\"auto\"><strong>Explicaci\u00f3:<\/strong><\/p><ul><li style=\"list-style-type: none;\"><ul dir=\"auto\"><li><strong>PTR:<\/strong> Per l&#8217;IP 10.4.0.10, apunta a ns1.illa4.local. El &#8220;10&#8221; \u00e9s la part final de l&#8217;IP (ja que la zona \u00e9s 0.4.10.in-addr.arpa).<\/li><li>Si afegeixes m\u00e9s IPs, afegeix m\u00e9s PTR, ex: 20 IN PTR www.illa4.local..<\/li><\/ul><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f1f92fa elementor-widget elementor-widget-text-editor\" data-id=\"f1f92fa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3 dir=\"auto\"><strong>1.6 Verificaci\u00f3 i Inici<\/strong><\/h3><p dir=\"auto\">Verifica la sintaxi de les configuracions:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5ac1d82 elementor-widget elementor-widget-code-block-for-elementor\" data-id=\"5ac1d82\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-block-for-elementor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-javascript'>named-checkconf \/etc\/bind\/named.conf.local\nnamed-checkzone illa4.local \/etc\/bind\/db.illa4.local\nnamed-checkzone 0.4.10.in-addr.arpa \/etc\/bind\/db.10.4.0<\/code><\/pre>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2535d54 elementor-widget elementor-widget-text-editor\" data-id=\"2535d54\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p dir=\"auto\">Reinicia BIND9:<\/p><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-33c9307 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-equal-height-no e-con e-parent\" data-id=\"33c9307\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-97ddff5 elementor-widget elementor-widget-code-block-for-elementor\" data-id=\"97ddff5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-block-for-elementor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-javascript'>systemctl restart bind9\nsystemctl status bind9  # Verifica que estigui actiu sense errors<\/code><\/pre>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cb37844 elementor-widget elementor-widget-text-editor\" data-id=\"cb37844\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4 dir=\"auto\"><strong>Resum final de comprovacions<\/strong><\/h4><p dir=\"auto\">Si totes aquestes comandes mostren el que s\u2019espera (com al meu exemple), el teu DNS Master est\u00e0 100 % operatiu i correctament configurat.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4c7f2b9 elementor-widget elementor-widget-code-block-for-elementor\" data-id=\"4c7f2b9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"code-block-for-elementor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<pre class='line-numbers theme-okaidia' data-show-toolbar='yes'><code class='language-javascript'># 1. Comprovar que no hi ha errors de sintaxi\nnamed-checkconf                  &amp;&amp; echo &quot;\u2705 Configuraci&oacute; global OK&quot;\nnamed-checkzone illa4.local \/etc\/bind\/db.illa4.local      &amp;&amp; echo &quot;\u2705 Zona directa OK&quot;\nnamed-checkzone 0.4.10.in-addr.arpa \/etc\/bind\/db.10.4.0   &amp;&amp; echo &quot;\u2705 Zona inversa OK&quot;\n\n# 2. Comprovar que BIND est&agrave; corrent sense errors\nsystemctl status bind9 | grep &quot;Active: active (running)&quot; &amp;&amp; echo &quot;\u2705 Servei BIND actiu&quot;\n\n# 3. Consulta directa (forward) &rarr; ha de tornar l&rsquo;IP\ndig ns1.illa4.local @10.4.0.10 +short\n# &rarr; Ha de mostrar: 10.4.0.10\n\n# 4. Consulta inversa (reverse) &rarr; ha de tornar el nom\ndig -x 10.4.0.10 @10.4.0.10 +short\n# &rarr; Ha de mostrar: ns1.illa4.local.\n\n# 5. Comprovar flags correctes (autoritzat i amb resposta)\ndig ns1.illa4.local @10.4.0.10 | grep -A2 &quot;ANSWER SECTION&quot;\n# &rarr; Ha de mostrar alguna cosa com:\n# ns1.illa4.local.    604800  IN  A   10.4.0.10\n# i a dalt: flags: qr aa rd ra\n\n# 6. (Opcional per&ograve; recomanable) For&ccedil;ar que la m&agrave;quina es resolgui a si mateixa\necho &quot;nameserver 10.4.0.10&quot; &gt; \/etc\/resolv.conf\nnslookup ns1.illa4.local     # &larr; ha de resoldre&rsquo;s correctament<\/code><\/pre>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8600119 elementor-widget elementor-widget-image\" data-id=\"8600119\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"700\" height=\"412\" src=\"https:\/\/aborrego.inscastellbisbal.net\/wp-content\/uploads\/2025\/12\/Selection_032.png\" class=\"attachment-large size-large wp-image-8993\" alt=\"\" srcset=\"https:\/\/aborrego.inscastellbisbal.net\/wp-content\/uploads\/2025\/12\/Selection_032.png 1010w, https:\/\/aborrego.inscastellbisbal.net\/wp-content\/uploads\/2025\/12\/Selection_032-300x176.png 300w, https:\/\/aborrego.inscastellbisbal.net\/wp-content\/uploads\/2025\/12\/Selection_032-768x452.png 768w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eceaaaa elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"eceaaaa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Configuraci\u00f3 del DNS Master a debian Tornar al repte 2.2 Pas 1: Instal\u00b7laci\u00f3 de BIND9 i les utilitats Actualitza la llista de paquets i instal\u00b7la BIND9 # Actualitza la llista de paquets sudo apt update # Instal&middot;la el paquet BIND9 i les utilitats sudo apt install bind9 bind9utils -y El servei BIND9 s&#8217;iniciar\u00e0 autom\u00e0ticament despr\u00e9s de la instal\u00b7laci\u00f3, per\u00f2 encara no far\u00e0 res \u00fatil amb el teu domini. Pas 2: Configuraci\u00f3 de la Zona al Fitxer Local Has d&#8217;indicar a BIND9 que \u00e9s el Master (Mestre) per al teu domini. Aix\u00f2 es fa al fitxer de configuraci\u00f3 local. Edita el fitxer \/etc\/bind\/named.conf.local: sudo nano \/etc\/bind\/named.conf.local Afegim el seg\u00fcent al final del fitxer: \/\/ Zona directa per illa4.local zone &quot;illa4.local&quot; { type master; file &quot;\/etc\/bind\/db.illa4.local&quot;; }; \/\/ Zona inversa per la xarxa 10.4.0.0\/25 (reverse lookup per 10.4.0.x) zone &quot;0.4.10.in-addr.arpa&quot; { type master; file &quot;\/etc\/bind\/db.10.4.0&quot;; }; La zona directa gestiona noms a IPs (A records). La zona inversa gestiona IPs a noms (PTR records). Per la xarxa 10.4.0.0\/25, utilitzem &#8220;0.4.10.in-addr.arpa&#8221; (que cobreix el \/24 sencer, per\u00f2 nom\u00e9s afegirem entrades per la teva subxarxa). Si nom\u00e9s vols \/25, aix\u00f2 funciona igualment. 1.4 Creaci\u00f3 dels Fitxers de Zona Fitxer de zona directa: \/etc\/bind\/db.illa4.local Copia una plantilla: Edita \/etc\/bind\/db.illa4.local: cp \/etc\/bind\/db.local \/etc\/bind\/db.illa4.local nano \/etc\/bind\/db.illa4.local Substituim el contingut amb aix\u00f2 (adapta si cal): ; ; BIND data file for illa4.local ; $TTL 604800 @ IN SOA ns1.illa4.local. root.illa4.local. ( 1 ; Serial (incrementa cada canvi) 604800 ; Refresh 86400 ; Retry 2419200 ; Expire 604800 ) ; Negative Cache TTL ; @ IN NS ns1.illa4.local. ns1 IN A 10.4.0.10 1.5 Fitxer de zona inversa: \/etc\/bind\/db.10.4.0 Copia una plantilla: Edita \/etc\/bind\/db.10.4.0: cp \/etc\/bind\/db.127 \/etc\/bind\/db.10.4.0 nano \/etc\/bind\/db.10.4.0 Substituim el contingut amb aix\u00f2 (adapta si cal): ; ; BIND reverse data file for 10.4.0.0\/25 ; $TTL 604800 @ IN SOA ns1.illa4.local. root.illa4.local. ( 1 ; Serial 604800 ; Refresh 86400 ; Retry 2419200 ; Expire 604800 ) ; Negative Cache TTL ; @ IN NS ns1.illa4.local. 10 IN PTR ns1.illa4.local. Explicaci\u00f3: PTR: Per l&#8217;IP 10.4.0.10, apunta a ns1.illa4.local. El &#8220;10&#8221; \u00e9s la part final de l&#8217;IP (ja que la zona \u00e9s 0.4.10.in-addr.arpa). Si afegeixes m\u00e9s IPs, afegeix m\u00e9s PTR, ex: 20 IN PTR www.illa4.local.. 1.6 Verificaci\u00f3 i Inici Verifica la sintaxi de les configuracions: named-checkconf \/etc\/bind\/named.conf.local named-checkzone illa4.local \/etc\/bind\/db.illa4.local named-checkzone 0.4.10.in-addr.arpa \/etc\/bind\/db.10.4.0 Reinicia BIND9: \u00a0 systemctl restart bind9 systemctl status bind9 # Verifica que estigui actiu sense errors Resum final de comprovacions Si totes aquestes comandes mostren el que s\u2019espera (com al meu exemple), el teu DNS Master est\u00e0 100 % operatiu i correctament configurat. # 1. Comprovar que no hi ha errors de sintaxi named-checkconf &amp;&amp; echo &quot;\u2705 Configuraci&oacute; global OK&quot; named-checkzone illa4.local \/etc\/bind\/db.illa4.local &amp;&amp; echo &quot;\u2705 Zona directa OK&quot; named-checkzone 0.4.10.in-addr.arpa \/etc\/bind\/db.10.4.0 &amp;&amp; echo &quot;\u2705 Zona inversa OK&quot; # 2. Comprovar que BIND est&agrave; corrent sense errors systemctl status bind9 | grep &quot;Active: active (running)&quot; &amp;&amp; echo &quot;\u2705 Servei BIND actiu&quot; # 3. Consulta directa (forward) &rarr; ha de tornar l&rsquo;IP dig ns1.illa4.local @10.4.0.10 +short # &rarr; Ha de mostrar: 10.4.0.10 # 4. Consulta inversa (reverse) &rarr; ha de tornar el nom dig -x 10.4.0.10 @10.4.0.10 +short # &rarr; Ha de mostrar: ns1.illa4.local. # 5. Comprovar flags correctes (autoritzat i amb resposta) dig ns1.illa4.local @10.4.0.10 | grep -A2 &quot;ANSWER SECTION&quot; # &rarr; Ha de mostrar alguna cosa com: # ns1.illa4.local. 604800 IN A 10.4.0.10 # i a dalt: flags: qr aa rd ra # 6. (Opcional per&ograve; recomanable) For&ccedil;ar que la m&agrave;quina es resolgui a si mateixa echo &quot;nameserver 10.4.0.10&quot; &gt; \/etc\/resolv.conf nslookup ns1.illa4.local # &larr; ha de resoldre&rsquo;s correctament<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-8983","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Configuraci\u00f3 del DNS Master a Debian - Ana Borrego Toledo<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Configuraci\u00f3 del DNS Master a Debian - Ana Borrego Toledo\" \/>\n<meta property=\"og:description\" content=\"Configuraci\u00f3 del DNS Master a debian Tornar al repte 2.2 Pas 1: Instal\u00b7laci\u00f3 de BIND9 i les utilitats Actualitza la llista de paquets i instal\u00b7la BIND9 # Actualitza la llista de paquets sudo apt update # Instal&middot;la el paquet BIND9 i les utilitats sudo apt install bind9 bind9utils -y El servei BIND9 s&#8217;iniciar\u00e0 autom\u00e0ticament despr\u00e9s de la instal\u00b7laci\u00f3, per\u00f2 encara no far\u00e0 res \u00fatil amb el teu domini. Pas 2: Configuraci\u00f3 de la Zona al Fitxer Local Has d&#8217;indicar a BIND9 que \u00e9s el Master (Mestre) per al teu domini. Aix\u00f2 es fa al fitxer de configuraci\u00f3 local. Edita el fitxer \/etc\/bind\/named.conf.local: sudo nano \/etc\/bind\/named.conf.local Afegim el seg\u00fcent al final del fitxer: \/\/ Zona directa per illa4.local zone &quot;illa4.local&quot; { type master; file &quot;\/etc\/bind\/db.illa4.local&quot;; }; \/\/ Zona inversa per la xarxa 10.4.0.0\/25 (reverse lookup per 10.4.0.x) zone &quot;0.4.10.in-addr.arpa&quot; { type master; file &quot;\/etc\/bind\/db.10.4.0&quot;; }; La zona directa gestiona noms a IPs (A records). La zona inversa gestiona IPs a noms (PTR records). Per la xarxa 10.4.0.0\/25, utilitzem &#8220;0.4.10.in-addr.arpa&#8221; (que cobreix el \/24 sencer, per\u00f2 nom\u00e9s afegirem entrades per la teva subxarxa). Si nom\u00e9s vols \/25, aix\u00f2 funciona igualment. 1.4 Creaci\u00f3 dels Fitxers de Zona Fitxer de zona directa: \/etc\/bind\/db.illa4.local Copia una plantilla: Edita \/etc\/bind\/db.illa4.local: cp \/etc\/bind\/db.local \/etc\/bind\/db.illa4.local nano \/etc\/bind\/db.illa4.local Substituim el contingut amb aix\u00f2 (adapta si cal): ; ; BIND data file for illa4.local ; $TTL 604800 @ IN SOA ns1.illa4.local. root.illa4.local. ( 1 ; Serial (incrementa cada canvi) 604800 ; Refresh 86400 ; Retry 2419200 ; Expire 604800 ) ; Negative Cache TTL ; @ IN NS ns1.illa4.local. ns1 IN A 10.4.0.10 1.5 Fitxer de zona inversa: \/etc\/bind\/db.10.4.0 Copia una plantilla: Edita \/etc\/bind\/db.10.4.0: cp \/etc\/bind\/db.127 \/etc\/bind\/db.10.4.0 nano \/etc\/bind\/db.10.4.0 Substituim el contingut amb aix\u00f2 (adapta si cal): ; ; BIND reverse data file for 10.4.0.0\/25 ; $TTL 604800 @ IN SOA ns1.illa4.local. root.illa4.local. ( 1 ; Serial 604800 ; Refresh 86400 ; Retry 2419200 ; Expire 604800 ) ; Negative Cache TTL ; @ IN NS ns1.illa4.local. 10 IN PTR ns1.illa4.local. Explicaci\u00f3: PTR: Per l&#8217;IP 10.4.0.10, apunta a ns1.illa4.local. El &#8220;10&#8221; \u00e9s la part final de l&#8217;IP (ja que la zona \u00e9s 0.4.10.in-addr.arpa). Si afegeixes m\u00e9s IPs, afegeix m\u00e9s PTR, ex: 20 IN PTR www.illa4.local.. 1.6 Verificaci\u00f3 i Inici Verifica la sintaxi de les configuracions: named-checkconf \/etc\/bind\/named.conf.local named-checkzone illa4.local \/etc\/bind\/db.illa4.local named-checkzone 0.4.10.in-addr.arpa \/etc\/bind\/db.10.4.0 Reinicia BIND9: \u00a0 systemctl restart bind9 systemctl status bind9 # Verifica que estigui actiu sense errors Resum final de comprovacions Si totes aquestes comandes mostren el que s\u2019espera (com al meu exemple), el teu DNS Master est\u00e0 100 % operatiu i correctament configurat. # 1. Comprovar que no hi ha errors de sintaxi named-checkconf &amp;&amp; echo &quot;\u2705 Configuraci&oacute; global OK&quot; named-checkzone illa4.local \/etc\/bind\/db.illa4.local &amp;&amp; echo &quot;\u2705 Zona directa OK&quot; named-checkzone 0.4.10.in-addr.arpa \/etc\/bind\/db.10.4.0 &amp;&amp; echo &quot;\u2705 Zona inversa OK&quot; # 2. Comprovar que BIND est&agrave; corrent sense errors systemctl status bind9 | grep &quot;Active: active (running)&quot; &amp;&amp; echo &quot;\u2705 Servei BIND actiu&quot; # 3. Consulta directa (forward) &rarr; ha de tornar l&rsquo;IP dig ns1.illa4.local @10.4.0.10 +short # &rarr; Ha de mostrar: 10.4.0.10 # 4. Consulta inversa (reverse) &rarr; ha de tornar el nom dig -x 10.4.0.10 @10.4.0.10 +short # &rarr; Ha de mostrar: ns1.illa4.local. # 5. Comprovar flags correctes (autoritzat i amb resposta) dig ns1.illa4.local @10.4.0.10 | grep -A2 &quot;ANSWER SECTION&quot; # &rarr; Ha de mostrar alguna cosa com: # ns1.illa4.local. 604800 IN A 10.4.0.10 # i a dalt: flags: qr aa rd ra # 6. (Opcional per&ograve; recomanable) For&ccedil;ar que la m&agrave;quina es resolgui a si mateixa echo &quot;nameserver 10.4.0.10&quot; &gt; \/etc\/resolv.conf nslookup ns1.illa4.local # &larr; ha de resoldre&rsquo;s correctament\" \/>\n<meta property=\"og:url\" content=\"https:\/\/aborrego.inscastellbisbal.net\/en\/2025\/12\/09\/configuracio-del-dns-master-a-debian\/\" \/>\n<meta property=\"og:site_name\" content=\"Ana Borrego Toledo\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-09T11:13:37+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-10T10:28:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/aborrego.inscastellbisbal.net\/wp-content\/uploads\/2025\/12\/Selection_027.png\" \/>\n\t<meta property=\"og:image:width\" content=\"726\" \/>\n\t<meta property=\"og:image:height\" content=\"483\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"aborrego\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"aborrego\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/aborrego.inscastellbisbal.net\\\/2025\\\/12\\\/09\\\/configuracio-del-dns-master-a-debian\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/aborrego.inscastellbisbal.net\\\/2025\\\/12\\\/09\\\/configuracio-del-dns-master-a-debian\\\/\"},\"author\":{\"name\":\"aborrego\",\"@id\":\"https:\\\/\\\/aborrego.inscastellbisbal.net\\\/#\\\/schema\\\/person\\\/596b5d3dc4735c43cfaafed47741b9d1\"},\"headline\":\"Configuraci\u00f3 del DNS Master a Debian\",\"datePublished\":\"2025-12-09T11:13:37+00:00\",\"dateModified\":\"2025-12-10T10:28:12+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/aborrego.inscastellbisbal.net\\\/2025\\\/12\\\/09\\\/configuracio-del-dns-master-a-debian\\\/\"},\"wordCount\":270,\"publisher\":{\"@id\":\"https:\\\/\\\/aborrego.inscastellbisbal.net\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/aborrego.inscastellbisbal.net\\\/2025\\\/12\\\/09\\\/configuracio-del-dns-master-a-debian\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/aborrego.inscastellbisbal.net\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/Selection_027.png\",\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/aborrego.inscastellbisbal.net\\\/2025\\\/12\\\/09\\\/configuracio-del-dns-master-a-debian\\\/\",\"url\":\"https:\\\/\\\/aborrego.inscastellbisbal.net\\\/2025\\\/12\\\/09\\\/configuracio-del-dns-master-a-debian\\\/\",\"name\":\"Configuraci\u00f3 del DNS Master a Debian - 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Ana Borrego Toledo","robots":{"index":"noindex","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"og_locale":"en_US","og_type":"article","og_title":"Configuraci\u00f3 del DNS Master a Debian - Ana Borrego Toledo","og_description":"Configuraci\u00f3 del DNS Master a debian Tornar al repte 2.2 Pas 1: Instal\u00b7laci\u00f3 de BIND9 i les utilitats Actualitza la llista de paquets i instal\u00b7la BIND9 # Actualitza la llista de paquets sudo apt update # Instal&middot;la el paquet BIND9 i les utilitats sudo apt install bind9 bind9utils -y El servei BIND9 s&#8217;iniciar\u00e0 autom\u00e0ticament despr\u00e9s de la instal\u00b7laci\u00f3, per\u00f2 encara no far\u00e0 res \u00fatil amb el teu domini. Pas 2: Configuraci\u00f3 de la Zona al Fitxer Local Has d&#8217;indicar a BIND9 que \u00e9s el Master (Mestre) per al teu domini. Aix\u00f2 es fa al fitxer de configuraci\u00f3 local. Edita el fitxer \/etc\/bind\/named.conf.local: sudo nano \/etc\/bind\/named.conf.local Afegim el seg\u00fcent al final del fitxer: \/\/ Zona directa per illa4.local zone &quot;illa4.local&quot; { type master; file &quot;\/etc\/bind\/db.illa4.local&quot;; }; \/\/ Zona inversa per la xarxa 10.4.0.0\/25 (reverse lookup per 10.4.0.x) zone &quot;0.4.10.in-addr.arpa&quot; { type master; file &quot;\/etc\/bind\/db.10.4.0&quot;; }; La zona directa gestiona noms a IPs (A records). La zona inversa gestiona IPs a noms (PTR records). Per la xarxa 10.4.0.0\/25, utilitzem &#8220;0.4.10.in-addr.arpa&#8221; (que cobreix el \/24 sencer, per\u00f2 nom\u00e9s afegirem entrades per la teva subxarxa). Si nom\u00e9s vols \/25, aix\u00f2 funciona igualment. 1.4 Creaci\u00f3 dels Fitxers de Zona Fitxer de zona directa: \/etc\/bind\/db.illa4.local Copia una plantilla: Edita \/etc\/bind\/db.illa4.local: cp \/etc\/bind\/db.local \/etc\/bind\/db.illa4.local nano \/etc\/bind\/db.illa4.local Substituim el contingut amb aix\u00f2 (adapta si cal): ; ; BIND data file for illa4.local ; $TTL 604800 @ IN SOA ns1.illa4.local. root.illa4.local. ( 1 ; Serial (incrementa cada canvi) 604800 ; Refresh 86400 ; Retry 2419200 ; Expire 604800 ) ; Negative Cache TTL ; @ IN NS ns1.illa4.local. ns1 IN A 10.4.0.10 1.5 Fitxer de zona inversa: \/etc\/bind\/db.10.4.0 Copia una plantilla: Edita \/etc\/bind\/db.10.4.0: cp \/etc\/bind\/db.127 \/etc\/bind\/db.10.4.0 nano \/etc\/bind\/db.10.4.0 Substituim el contingut amb aix\u00f2 (adapta si cal): ; ; BIND reverse data file for 10.4.0.0\/25 ; $TTL 604800 @ IN SOA ns1.illa4.local. root.illa4.local. ( 1 ; Serial 604800 ; Refresh 86400 ; Retry 2419200 ; Expire 604800 ) ; Negative Cache TTL ; @ IN NS ns1.illa4.local. 10 IN PTR ns1.illa4.local. Explicaci\u00f3: PTR: Per l&#8217;IP 10.4.0.10, apunta a ns1.illa4.local. El &#8220;10&#8221; \u00e9s la part final de l&#8217;IP (ja que la zona \u00e9s 0.4.10.in-addr.arpa). Si afegeixes m\u00e9s IPs, afegeix m\u00e9s PTR, ex: 20 IN PTR www.illa4.local.. 1.6 Verificaci\u00f3 i Inici Verifica la sintaxi de les configuracions: named-checkconf \/etc\/bind\/named.conf.local named-checkzone illa4.local \/etc\/bind\/db.illa4.local named-checkzone 0.4.10.in-addr.arpa \/etc\/bind\/db.10.4.0 Reinicia BIND9: \u00a0 systemctl restart bind9 systemctl status bind9 # Verifica que estigui actiu sense errors Resum final de comprovacions Si totes aquestes comandes mostren el que s\u2019espera (com al meu exemple), el teu DNS Master est\u00e0 100 % operatiu i correctament configurat. # 1. Comprovar que no hi ha errors de sintaxi named-checkconf &amp;&amp; echo &quot;\u2705 Configuraci&oacute; global OK&quot; named-checkzone illa4.local \/etc\/bind\/db.illa4.local &amp;&amp; echo &quot;\u2705 Zona directa OK&quot; named-checkzone 0.4.10.in-addr.arpa \/etc\/bind\/db.10.4.0 &amp;&amp; echo &quot;\u2705 Zona inversa OK&quot; # 2. Comprovar que BIND est&agrave; corrent sense errors systemctl status bind9 | grep &quot;Active: active (running)&quot; &amp;&amp; echo &quot;\u2705 Servei BIND actiu&quot; # 3. Consulta directa (forward) &rarr; ha de tornar l&rsquo;IP dig ns1.illa4.local @10.4.0.10 +short # &rarr; Ha de mostrar: 10.4.0.10 # 4. Consulta inversa (reverse) &rarr; ha de tornar el nom dig -x 10.4.0.10 @10.4.0.10 +short # &rarr; Ha de mostrar: ns1.illa4.local. # 5. Comprovar flags correctes (autoritzat i amb resposta) dig ns1.illa4.local @10.4.0.10 | grep -A2 &quot;ANSWER SECTION&quot; # &rarr; Ha de mostrar alguna cosa com: # ns1.illa4.local. 604800 IN A 10.4.0.10 # i a dalt: flags: qr aa rd ra # 6. 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