[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"blog-/blog/tutorial/dns-cloudflare-registros":3,"prev-/blog/tutorial/dns-cloudflare-registros":1134,"next-/blog/tutorial/dns-cloudflare-registros":1137,"related-/blog/tutorial/dns-cloudflare-registros":1140},{"id":4,"title":5,"author":6,"authorUrl":7,"body":8,"category":1101,"cta":1102,"date":1105,"dateModified":1105,"description":1106,"draft":1107,"extension":1108,"faq":1109,"featured":1107,"image":1122,"imageAlt":1123,"meta":1124,"navigation":930,"path":1125,"readingTime":963,"seo":1126,"stem":1127,"tags":1128,"__hash__":1133},"blog/blog/tutorial/dns-cloudflare-registros.md","Configurar DNS con Cloudflare — registros esenciales explicados","Syswork México","/nosotros",{"type":9,"value":10,"toc":1086},"minimark",[11,24,34,39,67,78,86,90,95,98,164,192,202,206,209,274,280,286,289,293,296,301,397,402,434,437,444,448,451,457,485,488,494,500,506,534,545,547,551,556,583,588,615,619,622,765,771,775,782,796,812,816,822,841,846,859,864,883,885,889,892,1013,1022,1028,1032,1035,1073,1082],[12,13,14,15,19,20,23],"p",{},"El DNS es la guía telefónica de internet — traduce nombres legibles como ",[16,17,18],"code",{},"tuempresa.com"," a direcciones IP como ",[16,21,22],{},"203.0.113.50",". Si tu DNS está mal configurado, tu sitio web no carga, tus correos no llegan y tus servicios no se encuentran. Es invisible cuando funciona y catastrófico cuando falla.",[12,25,26,33],{},[27,28,32],"a",{"href":29,"rel":30},"https://cloudflare.com",[31],"nofollow","Cloudflare"," es el proveedor de DNS más popular del mundo — rápido, gratuito, con interfaz intuitiva y funcionalidades extras como CDN, protección DDoS y certificados SSL. En esta guía vas a configurar todos los registros DNS que tu dominio necesita para funcionar correctamente.",[35,36,38],"h2",{"id":37},"paso-1-agregar-tu-dominio-a-cloudflare","Paso 1: Agregar tu dominio a Cloudflare",[40,41,42,50,58,64],"ol",{},[43,44,45,46],"li",{},"Crea una cuenta en ",[27,47,49],{"href":29,"rel":48},[31],"cloudflare.com",[43,51,52,53,57],{},"Clic en ",[54,55,56],"strong",{},"Add a site"," e ingresa tu dominio",[43,59,60,61],{},"Selecciona el plan ",[54,62,63],{},"Free",[43,65,66],{},"Cloudflare escanea tus registros DNS actuales e importa los que encuentra",[12,68,69,70,73,74,77],{},"Cloudflare te dará dos nameservers (algo como ",[16,71,72],{},"aria.ns.cloudflare.com"," y ",[16,75,76],{},"noah.ns.cloudflare.com","). Ve al panel de tu registrador de dominio (GoDaddy, Namecheap, etc.) y cambia los nameservers a los de Cloudflare.",[79,80,83],"alert",{"title":81,"type":82},"Propagación","info",[12,84,85],{},"El cambio de nameservers puede tardar de minutos a 48 horas en propagarse. Cloudflare te notifica por correo cuando detecta que la propagación se completó. Mientras tanto, puedes ir configurando los registros.",[35,87,89],{"id":88},"paso-2-registros-esenciales-explicados","Paso 2: Registros esenciales explicados",[91,92,94],"h3",{"id":93},"registro-a-apuntar-dominio-a-ip","Registro A — Apuntar dominio a IP",[12,96,97],{},"El registro más básico. Traduce un nombre a una dirección IPv4:",[99,100,101,123],"table",{},[102,103,104],"thead",{},[105,106,107,111,114,117,120],"tr",{},[108,109,110],"th",{},"Tipo",[108,112,113],{},"Nombre",[108,115,116],{},"Contenido",[108,118,119],{},"Proxy",[108,121,122],{},"TTL",[124,125,126,147],"tbody",{},[105,127,128,132,137,141,144],{},[129,130,131],"td",{},"A",[129,133,134],{},[16,135,136],{},"@",[129,138,139],{},[16,140,22],{},[129,142,143],{},"Proxied",[129,145,146],{},"Auto",[105,148,149,151,156,160,162],{},[129,150,131],{},[129,152,153],{},[16,154,155],{},"www",[129,157,158],{},[16,159,22],{},[129,161,143],{},[129,163,146],{},[165,166,167,177,187],"ul",{},[43,168,169,173,174,176],{},[54,170,171],{},[16,172,136],{}," representa el dominio raíz (",[16,175,18],{},")",[43,178,179,183,184],{},[54,180,181],{},[16,182,155],{}," es el subdominio ",[16,185,186],{},"www.tuempresa.com",[43,188,189,191],{},[54,190,143],{}," (naranja) — el tráfico pasa por Cloudflare, obtiene CDN y protección",[193,194,199],"pre",{"className":195,"code":197,"language":198},[196],"language-text","tuempresa.com    → 203.0.113.50 (tu servidor)\nwww.tuempresa.com → 203.0.113.50 (tu servidor)\n","text",[16,200,197],{"__ignoreMap":201},"",[91,203,205],{"id":204},"registro-cname-alias-de-un-dominio-a-otro","Registro CNAME — Alias de un dominio a otro",[12,207,208],{},"Apunta un subdominio a otro nombre de dominio en lugar de una IP:",[99,210,211,223],{},[102,212,213],{},[105,214,215,217,219,221],{},[108,216,110],{},[108,218,113],{},[108,220,116],{},[108,222,119],{},[124,224,225,241,257],{},[105,226,227,230,235,239],{},[129,228,229],{},"CNAME",[129,231,232],{},[16,233,234],{},"blog",[129,236,237],{},[16,238,18],{},[129,240,143],{},[105,242,243,245,250,255],{},[129,244,229],{},[129,246,247],{},[16,248,249],{},"tienda",[129,251,252],{},[16,253,254],{},"mi-tienda.shopify.com",[129,256,143],{},[105,258,259,261,266,271],{},[129,260,229],{},[129,262,263],{},[16,264,265],{},"docs",[129,267,268],{},[16,269,270],{},"tu-org.gitbook.io",[129,272,273],{},"DNS only",[193,275,278],{"className":276,"code":277,"language":198},[196],"blog.tuempresa.com    → tuempresa.com → 203.0.113.50\ntienda.tuempresa.com  → mi-tienda.shopify.com\n",[16,279,277],{"__ignoreMap":201},[12,281,282,283,285],{},"Usa CNAME cuando el destino puede cambiar de IP (servicios cloud, plataformas externas). No puedes crear un CNAME para el dominio raíz (",[16,284,136],{},") — Cloudflare lo maneja con \"CNAME flattening\" automático.",[287,288],"ad-banner",{},[91,290,292],{"id":291},"registros-mx-correo-electrónico","Registros MX — Correo electrónico",[12,294,295],{},"Los registros MX le dicen a internet a qué servidor entregar los correos de tu dominio:",[12,297,298],{},[54,299,300],{},"Google Workspace:",[99,302,303,316],{},[102,304,305],{},[105,306,307,309,311,313],{},[108,308,110],{},[108,310,113],{},[108,312,116],{},[108,314,315],{},"Prioridad",[124,317,318,335,351,366,382],{},[105,319,320,323,327,332],{},[129,321,322],{},"MX",[129,324,325],{},[16,326,136],{},[129,328,329],{},[16,330,331],{},"aspmx.l.google.com",[129,333,334],{},"1",[105,336,337,339,343,348],{},[129,338,322],{},[129,340,341],{},[16,342,136],{},[129,344,345],{},[16,346,347],{},"alt1.aspmx.l.google.com",[129,349,350],{},"5",[105,352,353,355,359,364],{},[129,354,322],{},[129,356,357],{},[16,358,136],{},[129,360,361],{},[16,362,363],{},"alt2.aspmx.l.google.com",[129,365,350],{},[105,367,368,370,374,379],{},[129,369,322],{},[129,371,372],{},[16,373,136],{},[129,375,376],{},[16,377,378],{},"alt3.aspmx.l.google.com",[129,380,381],{},"10",[105,383,384,386,390,395],{},[129,385,322],{},[129,387,388],{},[16,389,136],{},[129,391,392],{},[16,393,394],{},"alt4.aspmx.l.google.com",[129,396,381],{},[12,398,399],{},[54,400,401],{},"Microsoft 365:",[99,403,404,416],{},[102,405,406],{},[105,407,408,410,412,414],{},[108,409,110],{},[108,411,113],{},[108,413,116],{},[108,415,315],{},[124,417,418],{},[105,419,420,422,426,431],{},[129,421,322],{},[129,423,424],{},[16,425,136],{},[129,427,428],{},[16,429,430],{},"tuempresa-com.mail.protection.outlook.com",[129,432,433],{},"0",[12,435,436],{},"La prioridad indica qué servidor intentar primero (número más bajo = mayor prioridad).",[79,438,441],{"title":439,"type":440},"MX siempre DNS only","warning",[12,442,443],{},"Los registros MX nunca deben estar en modo Proxied (naranja). El correo electrónico no pasa por HTTP — necesita conexión directa al servidor de correo. Asegúrate de que estén en DNS only (gris).",[91,445,447],{"id":446},"registros-txt-verificaciones-y-seguridad-de-correo","Registros TXT — Verificaciones y seguridad de correo",[12,449,450],{},"Los registros TXT almacenan texto que otros servicios leen para verificar propiedad del dominio y autenticar correos.",[12,452,453,456],{},[54,454,455],{},"SPF (Sender Policy Framework)"," — Dice qué servidores pueden enviar correo a nombre de tu dominio:",[99,458,459,469],{},[102,460,461],{},[105,462,463,465,467],{},[108,464,110],{},[108,466,113],{},[108,468,116],{},[124,470,471],{},[105,472,473,476,480],{},[129,474,475],{},"TXT",[129,477,478],{},[16,479,136],{},[129,481,482],{},[16,483,484],{},"v=spf1 include:_spf.google.com ~all",[12,486,487],{},"Para Google Workspace + tu propio servidor:",[193,489,492],{"className":490,"code":491,"language":198},[196],"v=spf1 include:_spf.google.com ip4:203.0.113.50 ~all\n",[16,493,491],{"__ignoreMap":201},[12,495,496,499],{},[54,497,498],{},"DKIM"," — Firma digital que autentica que el correo realmente fue enviado desde tu dominio. Google Workspace y Microsoft 365 te dan la clave DKIM para agregar como registro TXT.",[12,501,502,505],{},[54,503,504],{},"DMARC"," — Política que indica qué hacer con correos que fallan SPF o DKIM:",[99,507,508,518],{},[102,509,510],{},[105,511,512,514,516],{},[108,513,110],{},[108,515,113],{},[108,517,116],{},[124,519,520],{},[105,521,522,524,529],{},[129,523,475],{},[129,525,526],{},[16,527,528],{},"_dmarc",[129,530,531],{},[16,532,533],{},"v=DMARC1; p=quarantine; rua=mailto:dmarc@tuempresa.com",[12,535,536,537,540,541,544],{},"Con ",[16,538,539],{},"p=quarantine",", los correos sospechosos van a spam. Con ",[16,542,543],{},"p=reject",", se rechazan completamente.",[287,546],{},[91,548,550],{"id":549},"registros-para-servicios-específicos","Registros para servicios específicos",[12,552,553],{},[54,554,555],{},"Verificación de Google Search Console:",[99,557,558,568],{},[102,559,560],{},[105,561,562,564,566],{},[108,563,110],{},[108,565,113],{},[108,567,116],{},[124,569,570],{},[105,571,572,574,578],{},[129,573,475],{},[129,575,576],{},[16,577,136],{},[129,579,580],{},[16,581,582],{},"google-site-verification=abc123...",[12,584,585],{},[54,586,587],{},"Verificación de Microsoft 365:",[99,589,590,600],{},[102,591,592],{},[105,593,594,596,598],{},[108,595,110],{},[108,597,113],{},[108,599,116],{},[124,601,602],{},[105,603,604,606,610],{},[129,605,475],{},[129,607,608],{},[16,609,136],{},[129,611,612],{},[16,613,614],{},"MS=ms12345678",[35,616,618],{"id":617},"paso-3-subdominios-para-servicios-internos","Paso 3: Subdominios para servicios internos",[12,620,621],{},"Configura subdominios para cada servicio de tu infraestructura. El proxy de Cloudflare debe estar en DNS only (gris) para servicios que no son HTTP:",[99,623,624,639],{},[102,625,626],{},[105,627,628,630,632,634,636],{},[108,629,110],{},[108,631,113],{},[108,633,116],{},[108,635,119],{},[108,637,638],{},"Uso",[124,640,641,664,682,703,725,744],{},[105,642,643,645,650,655,657],{},[129,644,131],{},[129,646,647],{},[16,648,649],{},"erp",[129,651,652],{},[16,653,654],{},"10.0.1.10",[129,656,143],{},[129,658,659,663],{},[27,660,662],{"href":661},"/soluciones/erp","ERP"," web",[105,665,666,668,673,677,679],{},[129,667,131],{},[129,669,670],{},[16,671,672],{},"api",[129,674,675],{},[16,676,22],{},[129,678,143],{},[129,680,681],{},"API pública",[105,683,684,686,691,695,697],{},[129,685,131],{},[129,687,688],{},[16,689,690],{},"grafana",[129,692,693],{},[16,694,22],{},[129,696,143],{},[129,698,699],{},[27,700,702],{"href":701},"/blog/monitoreo-grafana-prometheus","Monitoreo",[105,704,705,707,712,717,719],{},[129,706,131],{},[129,708,709],{},[16,710,711],{},"vpn",[129,713,714],{},[16,715,716],{},"203.0.113.51",[129,718,273],{},[129,720,721],{},[27,722,724],{"href":723},"/blog/configurar-vpn-wireguard","WireGuard VPN",[105,726,727,729,734,739,741],{},[129,728,131],{},[129,730,731],{},[16,732,733],{},"db",[129,735,736],{},[16,737,738],{},"10.0.1.20",[129,740,273],{},[129,742,743],{},"Base de datos (solo red interna)",[105,745,746,748,753,757,759],{},[129,747,229],{},[129,749,750],{},[16,751,752],{},"nube",[129,754,755],{},[16,756,22],{},[129,758,143],{},[129,760,761],{},[27,762,764],{"href":763},"/blog/instalar-nextcloud-servidor","Nextcloud",[79,766,768],{"title":767,"type":440},"IPs privadas",[12,769,770],{},"Cloudflare no puede hacer proxy a IPs privadas (10.x.x.x, 192.168.x.x). Los registros con IPs privadas deben estar en DNS only y solo se resuelven desde tu red interna. Para servicios internos accesibles solo por VPN, esto es exactamente lo que quieres.",[35,772,774],{"id":773},"paso-4-configuración-de-ssl","Paso 4: Configuración de SSL",[12,776,777,778,781],{},"En Cloudflare, ve a ",[54,779,780],{},"SSL/TLS"," y configura:",[165,783,784,790],{},[43,785,786,789],{},[54,787,788],{},"Full (strict)"," — Cloudflare cifra el tráfico entre el usuario y Cloudflare, Y entre Cloudflare y tu servidor. Requiere que tu servidor tenga un certificado SSL válido (Let's Encrypt funciona).",[43,791,792,795],{},[54,793,794],{},"Flexible"," — Solo cifra entre usuario y Cloudflare. Tu servidor puede no tener SSL. Menos seguro pero funciona sin configuración en el servidor.",[12,797,798,799,801,802,806,807,811],{},"Recomendamos ",[54,800,788],{}," con certificados ",[27,803,805],{"href":804},"/blog/nginx-reverse-proxy-ssl","Let's Encrypt en tu Nginx"," o ",[27,808,810],{"href":809},"/blog/traefik-reverse-proxy-docker","Traefik",".",[35,813,815],{"id":814},"paso-5-configuraciones-recomendadas","Paso 5: Configuraciones recomendadas",[12,817,818,819],{},"En ",[54,820,821],{},"SSL/TLS → Edge Certificates:",[165,823,824,830,836],{},[43,825,826,829],{},[54,827,828],{},"Always Use HTTPS:"," On",[43,831,832,835],{},[54,833,834],{},"Minimum TLS Version:"," 1.2",[43,837,838,829],{},[54,839,840],{},"Automatic HTTPS Rewrites:",[12,842,818,843],{},[54,844,845],{},"Speed → Optimization:",[165,847,848,854],{},[43,849,850,853],{},[54,851,852],{},"Auto Minify:"," CSS, JavaScript, HTML",[43,855,856,829],{},[54,857,858],{},"Brotli:",[12,860,818,861],{},[54,862,863],{},"Security:",[165,865,866,872,878],{},[43,867,868,871],{},[54,869,870],{},"Security Level:"," Medium",[43,873,874,877],{},[54,875,876],{},"Challenge Passage:"," 30 minutes",[43,879,880,829],{},[54,881,882],{},"Browser Integrity Check:",[287,884],{},[35,886,888],{"id":887},"verificar-tu-configuración","Verificar tu configuración",[12,890,891],{},"Después de configurar todo, verifica que funciona:",[193,893,897],{"className":894,"code":895,"language":896,"meta":201,"style":201},"language-bash shiki shiki-themes material-theme-lighter github-light github-dark","# Verificar registros A\ndig tuempresa.com A +short\n\n# Verificar MX\ndig tuempresa.com MX +short\n\n# Verificar SPF\ndig tuempresa.com TXT +short\n\n# Verificar DMARC\ndig _dmarc.tuempresa.com TXT +short\n\n# Verificar propagación global\n# Usa: https://www.whatsmydns.net/\n","bash",[16,898,899,908,925,932,938,950,955,961,973,978,984,996,1001,1007],{"__ignoreMap":201},[900,901,904],"span",{"class":902,"line":903},"line",1,[900,905,907],{"class":906},"sutJx","# Verificar registros A\n",[900,909,911,915,919,922],{"class":902,"line":910},2,[900,912,914],{"class":913},"sbgvK","dig",[900,916,918],{"class":917},"s_sjI"," tuempresa.com",[900,920,921],{"class":917}," A",[900,923,924],{"class":917}," +short\n",[900,926,928],{"class":902,"line":927},3,[900,929,931],{"emptyLinePlaceholder":930},true,"\n",[900,933,935],{"class":902,"line":934},4,[900,936,937],{"class":906},"# Verificar MX\n",[900,939,941,943,945,948],{"class":902,"line":940},5,[900,942,914],{"class":913},[900,944,918],{"class":917},[900,946,947],{"class":917}," MX",[900,949,924],{"class":917},[900,951,953],{"class":902,"line":952},6,[900,954,931],{"emptyLinePlaceholder":930},[900,956,958],{"class":902,"line":957},7,[900,959,960],{"class":906},"# Verificar SPF\n",[900,962,964,966,968,971],{"class":902,"line":963},8,[900,965,914],{"class":913},[900,967,918],{"class":917},[900,969,970],{"class":917}," TXT",[900,972,924],{"class":917},[900,974,976],{"class":902,"line":975},9,[900,977,931],{"emptyLinePlaceholder":930},[900,979,981],{"class":902,"line":980},10,[900,982,983],{"class":906},"# Verificar DMARC\n",[900,985,987,989,992,994],{"class":902,"line":986},11,[900,988,914],{"class":913},[900,990,991],{"class":917}," _dmarc.tuempresa.com",[900,993,970],{"class":917},[900,995,924],{"class":917},[900,997,999],{"class":902,"line":998},12,[900,1000,931],{"emptyLinePlaceholder":930},[900,1002,1004],{"class":902,"line":1003},13,[900,1005,1006],{"class":906},"# Verificar propagación global\n",[900,1008,1010],{"class":902,"line":1009},14,[900,1011,1012],{"class":906},"# Usa: https://www.whatsmydns.net/\n",[12,1014,1015,1016,1021],{},"Para correo, verifica SPF, DKIM y DMARC con ",[27,1017,1020],{"href":1018,"rel":1019},"https://mxtoolbox.com/",[31],"MXToolbox",":",[193,1023,1026],{"className":1024,"code":1025,"language":198},[196],"https://mxtoolbox.com/SuperTool.aspx?action=mx:tuempresa.com\n",[16,1027,1025],{"__ignoreMap":201},[35,1029,1031],{"id":1030},"siguientes-pasos","Siguientes pasos",[12,1033,1034],{},"Con DNS configurado correctamente:",[165,1036,1037,1043,1049,1055,1064],{},[43,1038,1039,1042],{},[54,1040,1041],{},"Page Rules"," — redirecciones, caché personalizado y reglas por URL en Cloudflare",[43,1044,1045,1048],{},[54,1046,1047],{},"Workers"," — lógica serverless en el edge de Cloudflare (rate limiting, transformación de headers, A/B testing)",[43,1050,1051,1054],{},[54,1052,1053],{},"Zero Trust"," — acceso seguro a aplicaciones internas sin VPN usando Cloudflare Access",[43,1056,1057,1063],{},[54,1058,1059],{},[27,1060,1062],{"href":1061},"/servicios/redes","Redes empresariales"," — diseño completo de DNS, dominios y conectividad para tu empresa",[43,1065,1066,1072],{},[54,1067,1068],{},[27,1069,1071],{"href":1070},"/servicios/ciberseguridad","Ciberseguridad"," — WAF, DDoS mitigation y protección avanzada con Cloudflare Pro",[1074,1075],"call-to-action",{"description":1076,"eyebrow":1077,"icon":1078,"label":1079,"title":1080,"to":1081},"Configuramos tu infraestructura de DNS, CDN, SSL y protección DDoS para que tu presencia digital sea rápida y segura.","Infraestructura de red","i-lucide-globe","Solicitar evaluación","¿Necesitas ayuda con DNS, dominios y conectividad?","/contacto",[1083,1084,1085],"style",{},"html pre.shiki code .sutJx, html code.shiki .sutJx{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#6A737D;--shiki-default-font-style:inherit;--shiki-dark:#6A737D;--shiki-dark-font-style:inherit}html pre.shiki code .sbgvK, html code.shiki .sbgvK{--shiki-light:#E2931D;--shiki-default:#6F42C1;--shiki-dark:#B392F0}html pre.shiki code .s_sjI, html code.shiki .s_sjI{--shiki-light:#91B859;--shiki-default:#032F62;--shiki-dark:#9ECBFF}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}",{"title":201,"searchDepth":910,"depth":927,"links":1087},[1088,1089,1096,1097,1098,1099,1100],{"id":37,"depth":910,"text":38},{"id":88,"depth":910,"text":89,"children":1090},[1091,1092,1093,1094,1095],{"id":93,"depth":927,"text":94},{"id":204,"depth":927,"text":205},{"id":291,"depth":927,"text":292},{"id":446,"depth":927,"text":447},{"id":549,"depth":927,"text":550},{"id":617,"depth":910,"text":618},{"id":773,"depth":910,"text":774},{"id":814,"depth":910,"text":815},{"id":887,"depth":910,"text":888},{"id":1030,"depth":910,"text":1031},"tutorial",{"title":1103,"description":1104,"label":1079,"to":1081,"icon":1078},"¿Necesitas ayuda con la infraestructura de red de tu empresa?","Configuramos DNS, dominios, CDN, SSL y conectividad para que tu presencia digital sea rápida, segura y confiable.","2026-02-18","Guía práctica para configurar los registros DNS de tu dominio en Cloudflare, incluyendo A, CNAME, MX, TXT y SPF con ejemplos reales para servidores web, correo y verificaciones.",false,"md",[1110,1113,1116,1119],{"question":1111,"answer":1112},"¿Cloudflare es gratuito?","Sí. El plan gratuito de Cloudflare incluye DNS, CDN básico, protección DDoS y certificados SSL universales. Para la mayoría de las empresas, el plan gratuito cubre todas las necesidades de DNS. Los planes de pago agregan WAF avanzado, optimización de imágenes, workers y analytics detallado.",{"question":1114,"answer":1115},"¿Cloudflare reemplaza a mi hosting?","No. Cloudflare es un proxy y DNS que se coloca frente a tu servidor. Tu servidor sigue corriendo tu aplicación — Cloudflare enruta el tráfico hacia él, agrega caché, SSL y protección. No almacena tus archivos ni ejecuta tu código (excepto con Workers, que es un producto separado).",{"question":1117,"answer":1118},"¿Qué significa el ícono naranja (Proxied) vs gris (DNS only)?","Naranja (Proxied) significa que el tráfico pasa por los servidores de Cloudflare — obtiene caché, protección DDoS y SSL de Cloudflare. Gris (DNS only) significa que Cloudflare solo resuelve el DNS y el tráfico va directo a tu servidor. Usa Proxied para sitios web y DNS only para registros que no deben pasar por Cloudflare (correo, FTP, bases de datos).",{"question":1120,"answer":1121},"¿Cuánto tarda en propagarse un cambio de DNS?","En Cloudflare, los cambios en registros se propagan en menos de 5 minutos gracias a su red global de servidores DNS. Si cambias de otro proveedor de DNS a Cloudflare, los nameservers pueden tardar hasta 24-48 horas en propagarse globalmente, aunque usualmente es mucho menos.","/images/blog/cloudflare-dns.jpg","Panel de Cloudflare mostrando la configuración de registros DNS de un dominio con registros A, CNAME y MX",{},"/blog/tutorial/dns-cloudflare-registros",{"title":5,"description":1106},"blog/tutorial/dns-cloudflare-registros",[1129,1130,1131,1132,1101],"dns","cloudflare","dominios","redes","CsFaj2-B6ToLCDso9ZTPL_qO8vT4WzBqVjtz0j-p0Lg",{"path":1135,"title":1136},"/blog/tutorial/hardening-servidores-linux","Hardening de servidores Linux — 15 pasos esenciales",{"path":1138,"title":1139},"/blog/tutorial/docker-compose-guia-completa","Docker Compose para principiantes — guía completa con ejemplos",[1141,1148,1155],{"path":1142,"title":1143,"description":1144,"date":1145,"category":1101,"image":1146,"imageAlt":1147,"readingTime":998},"/blog/tutorial/apis-rest-python-fastapi","Crear APIs REST con Python y FastAPI para integraciones empresariales","Guía paso a paso para construir una API REST profesional con Python y FastAPI que conecte tu ERP, CRM o cualquier sistema con validación, autenticación y documentación automática.","2026-03-04","/images/blog/fastapi-api-rest.jpg","Editor de código mostrando una API FastAPI con documentación Swagger generada automáticamente",{"path":1149,"title":1150,"description":1151,"date":1152,"category":1101,"image":1153,"imageAlt":1154,"readingTime":963},"/blog/tutorial/configurar-firewall-ufw-linux","Configurar firewall en Linux con UFW — reglas esenciales","Guía paso a paso para configurar UFW (Uncomplicated Firewall) en Ubuntu y Debian con las reglas esenciales para proteger servidores de producción.","2026-03-01","/images/blog/ufw-firewall-linux.jpg","Terminal de Linux mostrando reglas de firewall UFW activas protegiendo un servidor de producción",{"path":1156,"title":1157,"description":1158,"date":1159,"category":1101,"image":1160,"imageAlt":1161,"readingTime":980},"/blog/tutorial/traefik-reverse-proxy-docker","Configurar Traefik como reverse proxy para contenedores Docker","Guía paso a paso para instalar Traefik como reverse proxy con descubrimiento automático de contenedores Docker, SSL con Let's Encrypt y dashboard de monitoreo.","2026-02-28","/images/blog/traefik-docker.jpg","Dashboard de Traefik mostrando rutas automáticas hacia múltiples contenedores Docker con SSL activo"]