{"id":2676,"date":"2022-03-12T14:17:55","date_gmt":"2022-03-12T13:17:55","guid":{"rendered":"https:\/\/republify.se\/?post_type=product&#038;p=2676"},"modified":"2026-04-28T16:05:21","modified_gmt":"2026-04-28T15:05:21","slug":"dns-i-praktiken","status":"publish","type":"product","link":"https:\/\/republify.se\/index.php\/produkt\/dns-i-praktiken\/","title":{"rendered":"DNS i praktiken"},"content":{"rendered":"<p><strong>Detta \u00e4r en komplett utbildning som behandlar DNS-systemet och alla dess ing\u00e5ende delar. Utbildningen, v\u00e4nder sig till systemadministrat\u00f6rer eller personer med motsvarande behov. Den ger praktisk och teoretisk kunskap om DNS och programvaran BIND.<\/strong><\/p>\n<p>Under kursen anv\u00e4nds ett linuxbaserat operativsystem f\u00f6r de olika laborationerna. Deltagarna l\u00e4r sig att s\u00e4tta upp och konfigurera BIND f\u00f6r att tillhandah\u00e5lla funktionalitet som tas upp teoretiskt i de olika kapitlen, s\u00e5 som delegering, redundans och multipla vyer m.m.<\/p>\n<p><strong>M\u00e5lgrupp<\/strong><\/p>\n<p>F\u00f6r dig som vill kunna installera, konfigurera, fels\u00f6ka och sk\u00f6ta DNS tj\u00e4nster i olika upps\u00e4ttningar och milj\u00f6er.<\/p>\n<p><strong>F\u00f6rkunskaper<\/strong><\/p>\n<p>Grundkunskaper i n\u00e4tverkskommunikation med TCP\/IP. F\u00f6r laborationerna underl\u00e4ttar vana att anv\u00e4nda UNIX, men det \u00e4r inte ett n\u00f6dv\u00e4ndigt krav.<\/p>\n<p><strong>Inneh\u00e5ll<\/strong><\/p>\n<div id=\"pdf_desc_content\" class=\"content\">\n<p class=\"title\"><strong>1. Struktur<\/strong><\/p>\n<ul type=\"disc\">\n<li>Historik<\/li>\n<li>DNS-uppbyggnad och -f\u00f6rfr\u00e5gningar<\/li>\n<li>De olika posternas funktioner<\/li>\n<li>Dom\u00e4n kontra zon<\/li>\n<li>Rekursiva eller Iterativa f\u00f6rfr\u00e5gningar<\/li>\n<li>Koppling mellan olika niv\u00e5er\n<ul type=\"circle\">\n<li>ROOT<\/li>\n<li>Top Level domain (TLD)<\/li>\n<li>Dom\u00e4nnamn<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p class=\"title\"><strong>2. Grundl\u00e4ggande konfiguration<\/strong><\/p>\n<ul type=\"disc\">\n<li>Repetition av linuxkommandon<\/li>\n<li>Konfigurationsfiler<\/li>\n<li>Upps\u00e4ttning av en zon<\/li>\n<li>Verktyg f\u00f6r att \u00f6vervaka\/styra\/konfigurera BIND<\/li>\n<li>Verifikation av funktionalitet och konfiguration<\/li>\n<\/ul>\n<p class=\"title\"><strong>3. Delegering av dom\u00e4ner<\/strong><\/p>\n<ul type=\"disc\">\n<li>Syfte och mening med delegering<\/li>\n<li>Samspel mellan \u00f6ver-\/underliggande servrar<\/li>\n<li>Glue records<\/li>\n<li>Administrativt samspel<\/li>\n<\/ul>\n<p class=\"title\"><strong>4. Master- och slavservrar<\/strong><\/p>\n<ul type=\"disc\">\n<li>S\u00e4kerhet, Redundans<\/li>\n<li>AXFR, IXFR<\/li>\n<li>Zone Transfers<\/li>\n<li>Samspel mellan Master och Slave<\/li>\n<li>Zonfiler och styrning av synkronisering<\/li>\n<\/ul>\n<p class=\"title\"><strong>5. DNS i detalj<\/strong><\/p>\n<ul type=\"disc\">\n<li>Grundl\u00e4ggande paketformat<\/li>\n<li>Rekursion, Cachning<\/li>\n<li>Posttyper<\/li>\n<li>Accessr\u00e4ttigheter<\/li>\n<li>Forwarders<\/li>\n<\/ul>\n<p class=\"title\"><strong>6. Delegering i praktiken<\/strong><\/p>\n<ul type=\"disc\">\n<li>Hur fungerar det i Sverige, andra l\u00e4nder och mellan operat\u00f6rer?<\/li>\n<li>Inom den egna organisationen?<\/li>\n<li>RIR och IP adresser<\/li>\n<\/ul>\n<p class=\"title\"><strong>7. Bakl\u00e4ngesuppslagning<\/strong><\/p>\n<ul type=\"disc\">\n<li>Hantering av in-addr.arpa<\/li>\n<li>Delegering av CIDR-block<\/li>\n<\/ul>\n<p class=\"title\"><strong>8. S\u00e4kerhet och DNS<\/strong><\/p>\n<ul type=\"disc\">\n<li>S\u00e5rbarheter, S\u00e4kerhetsh\u00e5l och Uppdateringar<\/li>\n<li>DNSSEC, TSIG<\/li>\n<li>Upps\u00e4kring av v\u00e5r DNS-milj\u00f6<\/li>\n<li>Attacker mot DNS\n<ul type=\"circle\">\n<li>DNS Cache Poisoning<\/li>\n<li>D.O.S attacker<\/li>\n<li>AXFR transfers<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p class=\"title\"><strong>9. Avancerad konfiguration av BIND<\/strong><\/p>\n<ul type=\"disc\">\n<li>Adress\u00f6vers\u00e4ttning<\/li>\n<li>Multipla Vyer \/ Split DNS<\/li>\n<li>IPv6 uppslagning och konfiguration<\/li>\n<li>\u00c5\u00c4\u00d6 i dom\u00e4nnamn (IDN)<\/li>\n<li>DNS och DHCP, Dynamiska uppdateringar<\/li>\n<li>Sammankoppling med SPAM skydd.<\/li>\n<\/ul>\n<p class=\"title\"><strong>\u00d6vningar:<\/strong><\/p>\n<ul type=\"disc\">\n<li>Installation och upps\u00e4ttning av BIND.<\/li>\n<li>Delegering av fram- och bakl\u00e4ngesdom\u00e4ner.<\/li>\n<li>Kommunikation med ovan- och underliggande dom\u00e4ner.<\/li>\n<li>Konfigurering av brandv\u00e4gg ihop med BIND<\/li>\n<li>Upps\u00e4ttning av kontorsn\u00e4tverk med multipla vyer.<\/li>\n<li>Testning och verifikation av BIND konfiguration<\/li>\n<li>Upps\u00e4kring av BIND i en chrootad milj\u00f6<\/li>\n<\/ul>\n<\/div>\n<p>&nbsp;<\/p>\n<h3>Kursen levereras i samarbete med<\/h3>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-1201 lazyload\" data-src=\"https:\/\/republify.se\/wp-content\/uploads\/2022\/02\/Picox_Logo_2color_1_150.jpg\" alt=\"\" width=\"150\" height=\"50\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 150px; --smush-placeholder-aspect-ratio: 150\/50;\" \/><\/p>\n<h2>Kontakta oss om denna kurs<\/h2>\n<div data-test='contact-form'\n\t\t\tid='contact-form-2676'\n\t\t\tclass='jetpack-contact-form-container '\n\t\t\tdata-wp-interactive='jetpack\/form' data-wp-context='{\"formId\":\"2676\",\"formHash\":\"5c3399a74299e6f2acd4e9482e3fb22bb24e14b9\",\"showErrors\":false,\"errors\":[],\"fields\":[],\"isMultiStep\":false,\"useAjax\":true,\"submissionData\":null,\"formattedSubmissionData\":[],\"submissionSuccess\":false,\"submissionError\":null,\"elementId\":\"jp-form-5c3399a74299e6f2acd4e9482e3fb22bb24e14b9\",\"isSingleInputForm\":false,\"isForcedHorizontal\":false}'\n\t\t\tdata-wp-watch--scroll-to-wrapper=\"callbacks.scrollToWrapper\"\n\t\t>\n<div class=\"contact-form-submission contact-form-ajax-submission\" data-wp-bind--aria-hidden=\"state.isSuccessMessageAriaHidden\" data-wp-class--submission-success=\"context.submissionSuccess\" id=\"contact-form-success-5c3399a74299e6f2acd4e9482e3fb22bb24e14b9\" tabindex=\"-1\" aria-labelledby=\"contact-form-success-header-5c3399a74299e6f2acd4e9482e3fb22bb24e14b9\"><p class=\"go-back-message\"><a class=\"link\" role=\"button\" tabindex=\"0\" data-wp-on--click=\"actions.goBack\" href=\"\/index.php\/wp-json\/wp\/v2\/product\/2676\">\u2190 Tillbaka<\/a><\/p><h4 data-wp-bind--aria-hidden=\"state.isSuccessMessageAriaHidden\" id=\"contact-form-success-header-5c3399a74299e6f2acd4e9482e3fb22bb24e14b9\">Tack f\u00f6r din respons. \u2728<\/h4>\n\n<template data-wp-each--submission=\"context.formattedSubmissionData\">\n\t\t\t\t\t<div class=\"jetpack_forms_contact-form-success-summary\">\n\t\t\t\t\t\t<div class=\"field-name-wrapper\">\n\t\t\t\t\t\t\t<div class=\"field-type-icon\" data-wp-watch=\"callbacks.watchFieldTypeIcon\"><\/div>\n\t\t\t\t\t\t\t<div class=\"field-name\" data-wp-text=\"context.submission.label\" data-wp-bind--hidden=\"!context.submission.label\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"field-value\" data-wp-text=\"context.submission.value\" data-wp-bind--hidden=\"!context.submission.showPlainValue\"><\/div>\n\t\t\t\t\t\t<a class=\"field-url\" data-wp-bind--href=\"context.submission.url\" data-wp-text=\"context.submission.value\" data-wp-bind--hidden=\"!context.submission.url\" target=\"_blank\" rel=\"noopener noreferrer\"><\/a>\n\t\t\t\t\t\t<div class=\"field-rating\" data-wp-bind--hidden=\"!context.submission.rating\" data-wp-watch=\"callbacks.watchRatingIcons\"><\/div>\n\t\t\t\t\t\t<div class=\"field-images\" data-wp-bind--hidden=\"!context.submission.images\">\n\t\t\t\t\t\t\t<template data-wp-each--image=\"context.submission.images\">\n\t\t\t\t\t\t\t\t<div class=\"field-image-option\" data-wp-class--is-empty=\"!context.image.src\">\n\t\t\t\t\t\t\t\t\t<figure class=\"field-image-option__image\" data-wp-class--is-empty=\"!context.image.src\">\n\t\t\t\t\t\t\t\t\t\t<img data-wp-bind--src=\"context.image.src\" data-wp-bind--hidden=\"!context.image.src\" \/>\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAD\/ACwAAAAAAQABAAACADs=\" data-wp-bind--hidden=\"context.image.src\" \/>\n\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<div class=\"field-image-option__label-wrapper\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"field-image-option__label-code\" data-wp-text=\"context.image.letterCode\"><\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"field-image-option__label\" data-wp-text=\"context.image.label\" data-wp-bind--hidden=\"!context.image.label\"><\/span>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/template>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"field-files\" data-wp-bind--hidden=\"!context.submission.files\">\n\t\t\t\t\t\t\t<template data-wp-each--file=\"context.submission.files\">\n\t\t\t\t\t\t\t\t<div class=\"field-file\">\n\t\t\t\t\t\t\t\t\t<div class=\"field-file__thumbnail\" data-wp-style--background-image=\"context.file.previewUrl\" data-wp-style--mask-image=\"context.file.iconUrl\" data-wp-bind--hidden=\"!context.file.hasPreview\"><\/div>\n\t\t\t\t\t\t\t\t\t<svg class=\"field-file__icon\" data-wp-bind--hidden=\"context.file.hasPreview\" width=\"20\" height=\"20\" viewBox=\"0 0 24 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praktiken\"\n\t\t\t\tdata-wp-on--submit=\"actions.onFormSubmit\"\n\t\t\t\tdata-wp-on--reset=\"actions.onFormReset\"\n\t\t\t\tdata-wp-class--submission-success=\"context.submissionSuccess\"\n\t\t\t\tdata-wp-class--is-first-step=\"state.isFirstStep\"\n\t\t\t\tdata-wp-class--is-last-step=\"state.isLastStep\"\n\t\t\t\tdata-wp-class--is-ajax-form=\"context.useAjax\"\n\t\t\t\tnovalidate >\n<input type='hidden' name='jetpack_contact_form_jwt' 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\/>\n\n<div style=\"\"  data-wp-interactive=\"jetpack\/form\" data-wp-context='{\"fieldId\":\"g2676-namn\",\"fieldType\":\"name\",\"fieldLabel\":\"Namn\",\"fieldValue\":\"\",\"fieldPlaceholder\":\"\",\"fieldIsRequired\":\"1\",\"fieldErrorMessage\":\"\",\"fieldExtra\":[],\"formHash\":\"5c3399a74299e6f2acd4e9482e3fb22bb24e14b9\"}'  class='grunion-field-name-wrap grunion-field-wrap'  data-wp-init='callbacks.initializeField' data-wp-on--jetpack-form-reset='callbacks.initializeField' >\n<label\n\t\t\t\tfor='g2676-namn' class=\"grunion-field-label name\" >Namn<span class=\"grunion-label-required\" aria-hidden=\"true\">(obligatoriskt)<\/span><\/label>\n<input\n\t\t\t\t\ttype='text'\n\t\t\t\t\tname='g2676-namn'\n\t\t\t\t\tid='g2676-namn'\n\t\t\t\t\tvalue=''\n\n\t\t\t\t\tdata-wp-bind--aria-invalid='state.fieldAriaInvalid'\n\t\t\t\t\tdata-wp-bind--value='state.getFieldValue'\n\t\t\t\t\taria-describedby='g2676-namn-text-error-message'\n\t\t\t\t\tdata-wp-on--input='actions.onFieldChange'\n\t\t\t\t\tdata-wp-on--blur='actions.onFieldBlur'\n\t\t\t\t\tdata-wp-class--has-value='state.hasFieldValue'\n\n\t\t\t\t\tclass='name  grunion-field' \n\t\t\t\t\trequired='true' aria-required='true'  \/>\n \n\t\t\t<div id=\"g2676-namn-text-error\" class=\"contact-form__input-error\" data-wp-class--has-errors=\"state.fieldHasErrors\">\n\t\t\t\t<span class=\"contact-form__warning-icon\" aria-hidden=\"true\">\n\t\t\t\t\t<svg width=\"16\" height=\"16\" viewBox=\"0 0 16 16\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n\t\t\t\t\t\t<path d=\"M8.50015 11.6402H7.50015V10.6402H8.50015V11.6402Z\" 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data-wp-context='{\"fieldId\":\"g2676-epost\",\"fieldType\":\"email\",\"fieldLabel\":\"E-post\",\"fieldValue\":\"\",\"fieldPlaceholder\":\"\",\"fieldIsRequired\":\"1\",\"fieldErrorMessage\":\"\",\"fieldExtra\":[],\"formHash\":\"5c3399a74299e6f2acd4e9482e3fb22bb24e14b9\"}'  class='grunion-field-email-wrap grunion-field-wrap'  data-wp-init='callbacks.initializeField' data-wp-on--jetpack-form-reset='callbacks.initializeField' >\n<label\n\t\t\t\tfor='g2676-epost' class=\"grunion-field-label email\" >E-post<span class=\"grunion-label-required\" 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11.6402H7.50015V10.6402H8.50015V11.6402Z\" \/>\n\t\t\t\t\t\t<path d=\"M7.50015 9.64018H8.50015V6.30684H7.50015V9.64018Z\" \/>\n\t\t\t\t\t\t<path fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M6.98331 3.0947C7.42933 2.30177 8.57096 2.30177 9.01698 3.09469L13.8771 11.7349C14.3145 12.5126 13.7525 13.4735 12.8602 13.4735H3.14004C2.24774 13.4735 1.68575 12.5126 2.12321 11.7349L6.98331 3.0947ZM8.14541 3.58496C8.08169 3.47168 7.9186 3.47168 7.85488 3.58496L2.99478 12.2251C2.93229 12.3362 3.01257 12.4735 3.14004 12.4735H12.8602C12.9877 12.4735 13.068 12.3362 13.0055 12.2251L8.14541 3.58496Z\" \/>\n\t\t\t\t\t<\/svg>\n\t\t\t\t<\/span>\n\t\t\t\t<span data-wp-text=\"state.errorMessage\" id=\"g2676-epost-email-error-message\"><\/span>\n\t\t\t<\/div> \n\t<\/div>\n\n<div style=\"\"  data-wp-interactive=\"jetpack\/form\" data-wp-context='{\"fieldId\":\"g2676-meddelande\",\"fieldType\":\"textarea\",\"fieldLabel\":\"Meddelande\",\"fieldValue\":\"\",\"fieldPlaceholder\":\"\",\"fieldIsRequired\":\"\",\"fieldErrorMessage\":\"\",\"fieldExtra\":[],\"formHash\":\"5c3399a74299e6f2acd4e9482e3fb22bb24e14b9\"}'  class='grunion-field-textarea-wrap grunion-field-wrap'  data-wp-init='callbacks.initializeField' data-wp-on--jetpack-form-reset='callbacks.initializeField' >\n<label\n\t\t\t\tfor='contact-form-comment-g2676-meddelande' class=\"grunion-field-label textarea\" >Meddelande<\/label>\n<textarea\n\t\t                style=''\n\t\t                name='g2676-meddelande'\n\t\t                id='contact-form-comment-g2676-meddelande'\n\t\t                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3.0947C7.42933 2.30177 8.57096 2.30177 9.01698 3.09469L13.8771 11.7349C14.3145 12.5126 13.7525 13.4735 12.8602 13.4735H3.14004C2.24774 13.4735 1.68575 12.5126 2.12321 11.7349L6.98331 3.0947ZM8.14541 3.58496C8.08169 3.47168 7.9186 3.47168 7.85488 3.58496L2.99478 12.2251C2.93229 12.3362 3.01257 12.4735 3.14004 12.4735H12.8602C12.9877 12.4735 13.068 12.3362 13.0055 12.2251L8.14541 3.58496Z\" \/>\n\t\t\t\t\t<\/svg>\n\t\t\t\t<\/span>\n\t\t\t\t<span data-wp-text=\"state.errorMessage\" id=\"g2676-meddelande-textarea-error-message\"><\/span>\n\t\t\t<\/div>\n\t<\/div>\n\t<p class='contact-submit'>\n<div class=\"contact-form__error\" data-wp-class--show-errors=\"state.showFormErrors\"><span class=\"contact-form__warning-icon\" aria-hidden=\"true\"><i><\/i><\/span><span class=\"contact-form__error-message\" tabindex=\"-1\" data-wp-watch=\"callbacks.focusOnValidationError\" data-wp-text=\"state.getFormErrorMessage\"><\/span><ul aria-label=\"Formul\u00e4rfel\">\n\t\t\t\t<template data-wp-each=\"state.getErrorList\" data-wp-key=\"context.item.id\">\n\t\t\t\t\t<li><a data-wp-bind--href=\"context.item.anchor\" data-wp-on--click=\"actions.scrollIntoView\" data-wp-text=\"context.item.label\"><\/a><\/li>\n\t\t\t\t<\/template>\n\t\t\t\t<\/ul><\/div><div class=\"contact-form__error\" data-wp-class--show-errors=\"state.showSubmissionError\" data-wp-text=\"context.submissionError\" tabindex=\"-1\" data-wp-watch=\"callbacks.focusOnSubmissionError\"><\/div>\t\t<button type='submit' class='pushbutton-wide'>Skicka<\/button>\t\t<input type='hidden' name='contact-form-id' value='2676' \/>\n\t\t<input type='hidden' name='action' value='grunion-contact-form' \/>\n\t\t<input type='hidden' name='contact-form-hash' value='5c3399a74299e6f2acd4e9482e3fb22bb24e14b9' \/>\n\t<\/p>\n<\/form>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p><strong>Detta \u00e4r en komplett utbildning som behandlar DNS-systemet och alla dess ing\u00e5ende delar. Utbildningen, v\u00e4nder sig till systemadministrat\u00f6rer eller personer med motsvarande behov. Den ger praktisk och teoretisk kunskap om DNS och programvaran BIND.<\/strong><\/p>\n<p>Under kursen anv\u00e4nds ett linuxbaserat operativsystem f\u00f6r de olika laborationerna. Deltagarna l\u00e4r sig att s\u00e4tta upp och konfigurera BIND f\u00f6r att tillhandah\u00e5lla funktionalitet som tas upp teoretiskt i de olika kapitlen, s\u00e5 som delegering, redundans och multipla vyer m.m.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"featured_media":3473,"comment_status":"open","ping_status":"closed","template":"","meta":{"wds_primary_product_brand":0,"wds_primary_product_cat":0},"product_brand":[],"product_cat":[38,29],"product_tag":[],"class_list":{"0":"post-2676","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-natverk-datakom","7":"product_cat-technical","9":"first","10":"instock","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/republify.se\/index.php\/wp-json\/wp\/v2\/product\/2676","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/republify.se\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/republify.se\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/republify.se\/index.php\/wp-json\/wp\/v2\/comments?post=2676"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/republify.se\/index.php\/wp-json\/wp\/v2\/media\/3473"}],"wp:attachment":[{"href":"https:\/\/republify.se\/index.php\/wp-json\/wp\/v2\/media?parent=2676"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/republify.se\/index.php\/wp-json\/wp\/v2\/product_brand?post=2676"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/republify.se\/index.php\/wp-json\/wp\/v2\/product_cat?post=2676"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/republify.se\/index.php\/wp-json\/wp\/v2\/product_tag?post=2676"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}