{"id":2428,"date":"2026-09-22T09:43:40","date_gmt":"2026-09-22T06:43:40","guid":{"rendered":"https:\/\/www.namebox.ro\/blog\/?p=2428"},"modified":"2026-09-22T09:44:02","modified_gmt":"2026-09-22T06:44:02","slug":"dnssec-protectie-domeniu","status":"publish","type":"post","link":"https:\/\/www.namebox.ro\/blog\/dnssec-protectie-domeniu\/","title":{"rendered":"DNSSEC: Protec\u021bie pentru domeniul t\u0103u"},"content":{"rendered":"<p><strong>DNSSEC<\/strong> adaug\u0103 un nivel suplimentar de securitate sistemului DNS \u0219i permite verificarea autenticit\u0103\u021bii r\u0103spunsurilor primite atunci c\u00e2nd un utilizator \u00eencearc\u0103 s\u0103 acceseze un domeniu.<\/p>\n<p>F\u0103r\u0103 DNSSEC, un resolver DNS prime\u0219te informa\u021bii precum adresa IP asociat\u0103 unui domeniu, \u00eens\u0103 protocolul DNS clasic nu a fost proiectat ini\u021bial cu un mecanism criptografic prin care s\u0103 demonstreze c\u0103 r\u0103spunsul primit este exact cel publicat de administratorul domeniului.<\/p>\n<p>Prin utilizarea DNSSEC, informa\u021biile din zona DNS sunt semnate digital, iar resolverele care fac validare pot verifica dac\u0103 r\u0103spunsul este autentic \u0219i dac\u0103 nu a fost modificat pe parcurs.<\/p>\n<p>\u00cen acest articol explic\u0103m ce este DNSSEC, cum func\u021bioneaz\u0103 DNSKEY \u0219i DS Record, ce \u00eenseamn\u0103 lan\u021bul de \u00eencredere \u0219i de ce o configura\u021bie DNSSEC gre\u0219it\u0103 poate face un domeniu inaccesibil.<\/p>\n<h2>Ce este DNSSEC?<\/h2>\n<p><strong>DNSSEC<\/strong> vine de la:<\/p>\n<pre>Domain Name System Security Extensions<\/pre>\n<p>Este o extensie a sistemului DNS care utilizeaz\u0103 semn\u0103turi digitale \u0219i criptografie cu cheie public\u0103 pentru verificarea autenticit\u0103\u021bii datelor DNS.<\/p>\n<p>DNSSEC nu \u00eenlocuie\u0219te DNS-ul \u0219i nu modific\u0103 rolul \u00eenregistr\u0103rilor obi\u0219nuite precum:<\/p>\n<ul>\n<li>A;<\/li>\n<li>AAAA;<\/li>\n<li>CNAME;<\/li>\n<li>MX;<\/li>\n<li>TXT;<\/li>\n<li>CAA.<\/li>\n<\/ul>\n<p>\u00cen schimb, adaug\u0103 informa\u021bii suplimentare prin care un resolver poate verifica dac\u0103 r\u0103spunsurile DNS sunt legitime.<\/p>\n<p>Dac\u0103 dore\u0219ti s\u0103 \u00een\u021belegi mai \u00eent\u00e2i modul \u00een care func\u021bioneaz\u0103 sistemul DNS, po\u021bi consulta ghidul nostru <a href=\"https:\/\/www.namebox.ro\/blog\/ce-este-dns-si-cum-functioneaza-domeniile-web\/\"><strong>Ce este DNS \u0219i cum func\u021bioneaz\u0103?<\/strong><\/a>.<\/p>\n<h2>De ce a fost creat DNSSEC?<\/h2>\n<p>DNS-ul tradi\u021bional a fost proiectat \u00eentr-o perioad\u0103 \u00een care securitatea internetului nu avea cerin\u021bele actuale.<\/p>\n<p>\u00cen mod normal, atunci c\u00e2nd introduci \u00een browser:<\/p>\n<pre>www.exemplu.ro<\/pre>\n<p>resolverul DNS caut\u0103 adresa IP asociat\u0103 domeniului \u0219i poate primi, de exemplu:<\/p>\n<pre>www.exemplu.ro \u2192 192.0.2.10<\/pre>\n<p>Problema este c\u0103 DNS-ul tradi\u021bional nu ofer\u0103 singur o dovad\u0103 criptografic\u0103 prin care resolverul s\u0103 poat\u0103 confirma c\u0103 r\u0103spunsul respectiv este autentic.<\/p>\n<p>Un atacator care reu\u0219e\u0219te s\u0103 falsifice un r\u0103spuns DNS ar putea \u00eencerca s\u0103 returneze:<\/p>\n<pre>www.exemplu.ro \u2192 198.51.100.55<\/pre>\n<p>\u0219i astfel s\u0103 direc\u021bioneze utilizatorul c\u0103tre un alt server.<\/p>\n<p>DNSSEC a fost creat tocmai pentru a permite detectarea unor astfel de modific\u0103ri.<\/p>\n<h2>Ce este DNS spoofing?<\/h2>\n<p><strong>DNS spoofing<\/strong> reprezint\u0103 falsificarea informa\u021biilor DNS astfel \u00eenc\u00e2t un utilizator s\u0103 primeasc\u0103 un r\u0103spuns diferit de cel publicat \u00een zona DNS legitim\u0103.<\/p>\n<p>Un scenariu simplificat ar putea fi:<\/p>\n<pre>\r\nUtilizator\r\n    \u2193\r\nCere IP-ul pentru exemplu.ro\r\n    \u2193\r\nPrime\u0219te un r\u0103spuns DNS falsificat\r\n    \u2193\r\nEste trimis c\u0103tre un server controlat de atacator\r\n<\/pre>\n<p>Un astfel de atac poate fi utilizat pentru:<\/p>\n<ul>\n<li>redirec\u021bionarea traficului;<\/li>\n<li>imitarea unui website legitim;<\/li>\n<li>furtul datelor introduse de utilizatori;<\/li>\n<li>interceptarea anumitor comunica\u021bii;<\/li>\n<li>alte forme de atac de tip man-in-the-middle.<\/li>\n<\/ul>\n<p>DNSSEC ajut\u0103 resolverul s\u0103 detecteze dac\u0103 informa\u021biile DNS au fost modificate sau nu pot fi validate criptografic.<\/p>\n<h2>Cum func\u021bioneaz\u0103 DNSSEC?<\/h2>\n<p>DNSSEC utilizeaz\u0103 criptografie asimetric\u0103.<\/p>\n<p>\u00centr-un sistem de criptografie cu cheie public\u0103 exist\u0103 dou\u0103 componente importante:<\/p>\n<ul>\n<li>o cheie privat\u0103;<\/li>\n<li>o cheie public\u0103.<\/li>\n<\/ul>\n<p>Cheia privat\u0103 este utilizat\u0103 pentru generarea semn\u0103turilor digitale, iar cheia public\u0103 este publicat\u0103 \u00een DNS \u0219i poate fi utilizat\u0103 de resolvere pentru verificarea acestor semn\u0103turi.<\/p>\n<p>Procesul poate fi reprezentat simplificat astfel:<\/p>\n<pre>\r\nZona DNS\r\n   \u2193\r\n\u00cenregistr\u0103rile sunt grupate \u00een RRsets\r\n   \u2193\r\nRRsets sunt semnate digital\r\n   \u2193\r\nSemn\u0103turile sunt publicate \u00een DNS\r\n   \u2193\r\nResolverul prime\u0219te datele + semn\u0103tura\r\n   \u2193\r\nVerific\u0103 semn\u0103tura folosind cheia public\u0103\r\n   \u2193\r\nR\u0103spuns valid sau invalid\r\n<\/pre>\n<h2>DNSSEC cripteaz\u0103 DNS-ul?<\/h2>\n<p>Nu.<\/p>\n<p>Este o diferen\u021b\u0103 foarte important\u0103.<\/p>\n<p><strong>DNSSEC nu cripteaz\u0103 cererile \u0219i r\u0103spunsurile DNS.<\/strong><\/p>\n<p>Rolul s\u0103u este verificarea:<\/p>\n<ul>\n<li>autenticit\u0103\u021bii datelor;<\/li>\n<li>integrit\u0103\u021bii r\u0103spunsului;<\/li>\n<li>lan\u021bului de \u00eencredere dintre domeniu \u0219i zona DNS p\u0103rinte.<\/li>\n<\/ul>\n<p>Un observator al traficului poate vedea \u00een continuare ce domeniu este solicitat atunci c\u00e2nd este utilizat DNS tradi\u021bional.<\/p>\n<p>Pentru criptarea comunica\u021biei dintre client \u0219i resolver exist\u0103 tehnologii separate precum:<\/p>\n<ul>\n<li>DNS over HTTPS \u2013 DoH;<\/li>\n<li>DNS over TLS \u2013 DoT.<\/li>\n<\/ul>\n<p>DNSSEC \u0219i DoH\/DoT rezolv\u0103 probleme diferite \u0219i pot fi utilizate \u00eempreun\u0103.<\/p>\n<h2>Ce este DNSKEY?<\/h2>\n<p>DNSSEC introduce mai multe tipuri de \u00eenregistr\u0103ri DNS suplimentare.<\/p>\n<p>Una dintre cele mai importante este:<\/p>\n<pre>DNSKEY<\/pre>\n<p>\u00cenregistrarea DNSKEY public\u0103 cheia necesar\u0103 pentru validarea semn\u0103turilor DNSSEC ale zonei.<\/p>\n<p>Resolverul utilizeaz\u0103 aceast\u0103 cheie pentru a verifica dac\u0103 informa\u021biile primite sunt semnate corespunz\u0103tor.<\/p>\n<h2>Ce este RRSIG?<\/h2>\n<p>\u00cenregistrarea:<\/p>\n<pre>RRSIG<\/pre>\n<p>con\u021bine semn\u0103tura digital\u0103 asociat\u0103 unui set de \u00eenregistr\u0103ri DNS.<\/p>\n<p>De exemplu, dac\u0103 domeniul are:<\/p>\n<pre>exemplu.ro. A 192.0.2.10<\/pre>\n<p>DNSSEC poate publica al\u0103turi de setul respectiv o semn\u0103tur\u0103 RRSIG.<\/p>\n<p>Resolverul valideaz\u0103 semn\u0103tura utiliz\u00e2nd DNSKEY.<\/p>\n<h2>Ce este DS Record?<\/h2>\n<p><strong>DS \u2013 Delegation Signer<\/strong> este una dintre cele mai importante componente ale DNSSEC.<\/p>\n<p>\u00cenregistrarea DS este publicat\u0103 \u00een zona DNS p\u0103rinte \u0219i creeaz\u0103 leg\u0103tura dintre zona p\u0103rinte \u0219i cheia DNSSEC a domeniului.<\/p>\n<p>Pentru un domeniu:<\/p>\n<pre>exemplu.ro<\/pre>\n<p>\u00eenregistrarea DS trebuie publicat\u0103 \u00een zona p\u0103rinte:<\/p>\n<pre>.ro<\/pre>\n<p>\u00cenregistrarea DS con\u021bine informa\u021bii care permit resolverului s\u0103 verifice cheia DNSKEY utilizat\u0103 de domeniu.<\/p>\n<p>Un DS Record con\u021bine informa\u021bii precum:<\/p>\n<ul>\n<li>Key Tag;<\/li>\n<li>Algorithm;<\/li>\n<li>Digest Type;<\/li>\n<li>Digest.<\/li>\n<\/ul>\n<p>Aceste valori trebuie s\u0103 corespund\u0103 cheii DNSSEC active \u00een zona domeniului.<\/p>\n<h2>De ce este necesar DS Record?<\/h2>\n<p>Doar semnarea zonei DNS nu este suficient\u0103 pentru a ob\u021bine un lan\u021b complet de \u00eencredere.<\/p>\n<p>Resolverul trebuie s\u0103 poat\u0103 verifica faptul c\u0103 cheia publicat\u0103 de domeniu este \u00eentr-adev\u0103r cheia legitim\u0103.<\/p>\n<p>Aici intervine \u00eenregistrarea DS de la nivelul registrarului sau al zonei p\u0103rinte.<\/p>\n<p>Procesul poate fi privit astfel:<\/p>\n<pre>\r\nROOT\r\n  \u2193\r\n.ro\r\n  \u2193\r\nDS pentru exemplu.ro\r\n  \u2193\r\nDNSKEY exemplu.ro\r\n  \u2193\r\nRRSIG\r\n  \u2193\r\nA \/ MX \/ TXT \/ alte \u00eenregistr\u0103ri\r\n<\/pre>\n<p>Dac\u0103 fiecare element al lan\u021bului poate fi validat, resolverul poate avea \u00eencredere \u00een r\u0103spunsul DNS primit.<\/p>\n<h2>Ce este lan\u021bul de \u00eencredere DNSSEC?<\/h2>\n<p>DNSSEC utilizeaz\u0103 un mecanism cunoscut sub numele de:<\/p>\n<p><strong>Chain of Trust \u2013 lan\u021b de \u00eencredere<\/strong>.<\/p>\n<p>Validarea \u00eencepe de la zona DNS root:<\/p>\n<pre>.<\/pre>\n<p>Resolverele DNSSEC au configurat\u0103 o cheie root considerat\u0103 de \u00eencredere.<\/p>\n<p>De aici, resolverul poate verifica treptat fiecare nivel DNS.<\/p>\n<p>Pentru un domeniu precum:<\/p>\n<pre>www.exemplu.ro<\/pre>\n<p>procesul simplificat este:<\/p>\n<pre>\r\nRoot (.)\r\n   \u2193\r\n.ro\r\n   \u2193\r\nexemplu.ro\r\n   \u2193\r\nwww.exemplu.ro\r\n<\/pre>\n<p>Zona root valideaz\u0103 delegarea c\u0103tre TLD, zona TLD valideaz\u0103 delegarea c\u0103tre domeniu prin DS, iar domeniul utilizeaz\u0103 DNSKEY \u0219i semn\u0103turile sale pentru validarea \u00eenregistr\u0103rilor DNS.<\/p>\n<h2>Ce se \u00eent\u00e2mpl\u0103 c\u00e2nd resolverul verific\u0103 DNSSEC?<\/h2>\n<p>S\u0103 presupunem c\u0103 un utilizator acceseaz\u0103:<\/p>\n<pre>https:\/\/exemplu.ro<\/pre>\n<p>Resolverul care suport\u0103 validare DNSSEC poate realiza urm\u0103torii pa\u0219i:<\/p>\n<ol>\n<li>solicit\u0103 informa\u021biile DNS pentru domeniu;<\/li>\n<li>prime\u0219te \u00eenregistrarea \u0219i semn\u0103tura asociat\u0103;<\/li>\n<li>verific\u0103 DNSKEY;<\/li>\n<li>verific\u0103 DS-ul publicat \u00een zona p\u0103rinte;<\/li>\n<li>continu\u0103 validarea p\u00e2n\u0103 la root;<\/li>\n<li>confirm\u0103 c\u0103 r\u0103spunsul este autentic.<\/li>\n<\/ol>\n<p>Dac\u0103 semn\u0103turile \u0219i lan\u021bul sunt valide, r\u0103spunsul este acceptat.<\/p>\n<p>Dac\u0103 validarea e\u0219ueaz\u0103, resolverul poate refuza s\u0103 returneze r\u0103spunsul utilizatorului.<\/p>\n<h2>Ce se \u00eent\u00e2mpl\u0103 dac\u0103 cineva modific\u0103 r\u0103spunsul DNS?<\/h2>\n<p>Dac\u0103 un atacator modific\u0103:<\/p>\n<pre>192.0.2.10<\/pre>\n<p>\u00een:<\/p>\n<pre>198.51.100.55<\/pre>\n<p>semn\u0103tura digital\u0103 nu va mai corespunde datelor.<\/p>\n<p>Un resolver care valideaz\u0103 DNSSEC va putea identifica faptul c\u0103 informa\u021bia nu este autentic\u0103 \u0219i poate refuza r\u0103spunsul.<\/p>\n<p>Acesta este principalul avantaj al DNSSEC.<\/p>\n<h2>DNSSEC protejeaz\u0103 toate \u00eenregistr\u0103rile DNS?<\/h2>\n<p>DNSSEC poate proteja autenticitatea datelor publicate \u00een zona semnat\u0103, inclusiv seturi de \u00eenregistr\u0103ri precum:<\/p>\n<ul>\n<li>A;<\/li>\n<li>AAAA;<\/li>\n<li>MX;<\/li>\n<li>TXT;<\/li>\n<li>CNAME;<\/li>\n<li>NS;<\/li>\n<li>CAA.<\/li>\n<\/ul>\n<p>DNSSEC nu schimb\u0103 \u00eens\u0103 valoarea acestor \u00eenregistr\u0103ri \u0219i nu \u00eempiedic\u0103 administratorul s\u0103 configureze gre\u0219it zona DNS.<\/p>\n<p>Dac\u0103 administratorul public\u0103 inten\u021bionat sau accidental un IP gre\u0219it, DNSSEC poate confirma c\u0103 acel r\u0103spuns este autentic, dar nu poate determina dac\u0103 configura\u021bia este corect\u0103 din punct de vedere opera\u021bional.<\/p>\n<h2>DNSSEC \u0219i cPanel<\/h2>\n<p>\u00cen cPanel, administrarea DNSSEC poate fi disponibil\u0103 din:<\/p>\n<p><strong>cPanel \u2192 Domains \u2192 Zone Editor<\/strong><\/p>\n<p>\u00cen dreptul domeniului poate exista op\u021biunea:<\/p>\n<p><strong>DNSSEC<\/strong><\/p>\n<p>cPanel permite crearea \u0219i administrarea cheilor DNSSEC atunci c\u00e2nd infrastructura serverului este configurat\u0103 corespunz\u0103tor.<\/p>\n<p>Este important de re\u021binut c\u0103 disponibilitatea func\u021biei depinde de configura\u021bia furnizorului de hosting.<\/p>\n<p>cPanel suport\u0103 DNSSEC pentru serverele DNS care utilizeaz\u0103 <strong>PowerDNS<\/strong>.<\/p>\n<h2>Cum activezi DNSSEC \u00een cPanel?<\/h2>\n<p>Dac\u0103 op\u021biunea DNSSEC este disponibil\u0103, acceseaz\u0103:<\/p>\n<p><strong>cPanel \u2192 Domains \u2192 Zone Editor \u2192 DNSSEC<\/strong><\/p>\n<p>Pentru domeniul dorit po\u021bi selecta:<\/p>\n<p><strong>Create Key<\/strong><\/p>\n<p>cPanel va genera cheia DNSSEC \u0219i va afi\u0219a informa\u021biile necesare pentru DS Record.<\/p>\n<p>Printre acestea se pot afla:<\/p>\n<pre>\r\nKey Tag\r\nAlgorithm\r\nDigest Type\r\nDigest\r\n<\/pre>\n<p>Aceste informa\u021bii trebuie ulterior configurate la registrarul domeniului.<\/p>\n<h2>Generarea cheii \u00een cPanel nu este suficient\u0103<\/h2>\n<p>Aceasta este una dintre cele mai importante reguli DNSSEC.<\/p>\n<p>Dac\u0103 generezi cheia DNSSEC \u00een cPanel, trebuie configurat \u0219i <strong>DS Record<\/strong> la registrarul domeniului.<\/p>\n<p>F\u0103r\u0103 DS, zona poate fi semnat\u0103, \u00eens\u0103 nu exist\u0103 un lan\u021b complet de \u00eencredere de la zona p\u0103rinte c\u0103tre domeniu.<\/p>\n<p>Fluxul corect este:<\/p>\n<pre>\r\n1. Generezi cheia DNSSEC\r\n        \u2193\r\n2. Ob\u021bii datele DS\r\n        \u2193\r\n3. Configurezi DS la registrar\r\n        \u2193\r\n4. A\u0219tep\u021bi propagarea\r\n        \u2193\r\n5. Verifici DNSSEC\r\n<\/pre>\n<h2>Unde se configureaz\u0103 DS Record?<\/h2>\n<p>\u00cenregistrarea DS nu se adaug\u0103, \u00een mod normal, ca un record obi\u0219nuit A sau TXT \u00een aceea\u0219i zon\u0103 DNS a domeniului.<\/p>\n<p>DS trebuie publicat \u00een <strong>zona p\u0103rinte<\/strong>, prin registrarul domeniului.<\/p>\n<p>De exemplu:<\/p>\n<pre>\r\nDomeniu: exemplu.ro\r\nZona DNS: serverul DNS autoritativ\r\nDS: registrar \/ zona .ro\r\n<\/pre>\n<p>Procedura exact\u0103 depinde de extensia domeniului \u0219i de registrarul utilizat.<\/p>\n<p>NameBox este registrar acreditat ROTLD pentru domeniile .RO \u0219i ofer\u0103 servicii de administrare a domeniilor \u0219i a zonelor DNS. Pentru o configura\u021bie DNSSEC, trebuie verificat\u0103 disponibilitatea \u0219i procedura aplicabil\u0103 domeniului respectiv.<\/p>\n<h2>Ce se \u00eent\u00e2mpl\u0103 dac\u0103 DS Record este gre\u0219it?<\/h2>\n<p>Aici trebuie acordat\u0103 foarte mult\u0103 aten\u021bie.<\/p>\n<p>Dac\u0103 zona DNS utilizeaz\u0103 o cheie, dar la registrar exist\u0103 un DS asociat unei alte chei, lan\u021bul DNSSEC devine invalid.<\/p>\n<p>Resolverele care valideaz\u0103 DNSSEC pot considera r\u0103spunsurile:<\/p>\n<pre>BOGUS<\/pre>\n<p>\u0219i pot refuza rezolvarea domeniului.<\/p>\n<p>Rezultatul poate fi c\u0103 website-ul \u0219i serviciile asociate domeniului nu mai sunt accesibile pentru utilizatorii care folosesc resolvere cu validare DNSSEC.<\/p>\n<h2>Un DNSSEC configurat gre\u0219it poate face site-ul inaccesibil?<\/h2>\n<p>Da.<\/p>\n<p>O configura\u021bie DNSSEC incorect\u0103 este diferit\u0103 de situa\u021bia \u00een care DNSSEC nu este activ deloc.<\/p>\n<p>F\u0103r\u0103 DNSSEC:<\/p>\n<pre>DNS func\u021bioneaz\u0103 f\u0103r\u0103 validare criptografic\u0103<\/pre>\n<p>Cu DNSSEC configurat corect:<\/p>\n<pre>DNS func\u021bioneaz\u0103 + r\u0103spunsurile pot fi validate<\/pre>\n<p>Cu DNSSEC configurat gre\u0219it:<\/p>\n<pre>Validarea e\u0219ueaz\u0103 \u2192 domeniul poate deveni inaccesibil\r\n<\/pre>\n<p>Din acest motiv, DS Record \u0219i cheile DNSSEC trebuie gestionate cu aten\u021bie.<\/p>\n<h2>DNSSEC \u0219i migrarea unui website pe alt server<\/h2>\n<p>DNSSEC trebuie verificat \u00een mod special \u00eenainte de migrarea zonei DNS c\u0103tre alt server.<\/p>\n<p>Dac\u0103 vechiul server utilizeaz\u0103 o anumit\u0103 cheie DNSSEC \u0219i noul server genereaz\u0103 o alt\u0103 cheie, DS-ul existent la registrar nu va mai corespunde.<\/p>\n<p>cPanel recomand\u0103 ca, \u00eenainte de transferul unui domeniu cu DNSSEC activ c\u0103tre alt server, DS-ul vechi s\u0103 fie eliminat sau gestionat corespunz\u0103tor, iar dup\u0103 migrare s\u0103 fie publicat noul DS.<\/p>\n<p>Un scenariu gre\u0219it ar fi:<\/p>\n<pre>\r\nServer vechi \u2192 DNSKEY A\r\nRegistrar     \u2192 DS pentru cheia A\r\n\r\nMigrare\r\n\r\nServer nou   \u2192 DNSKEY B\r\nRegistrar     \u2192 \u00eenc\u0103 DS pentru cheia A\r\n<\/pre>\n<p>\u00cen aceast\u0103 situa\u021bie validarea DNSSEC poate e\u0219ua.<\/p>\n<h2>Nu \u0219terge cheia DNSSEC \u00eenainte de DS Record<\/h2>\n<p>Dac\u0103 dore\u0219ti dezactivarea DNSSEC, ordinea opera\u021biunilor este important\u0103.<\/p>\n<p>Nu este recomandat s\u0103 \u0219tergi mai \u00eent\u00e2i cheia de pe server \u0219i s\u0103 la\u0219i DS-ul activ la registrar.<\/p>\n<p>\u00cen aceast\u0103 situa\u021bie zona p\u0103rinte spune resolverului c\u0103 domeniul trebuie validat prin DNSSEC, dar zona nu mai poate furniza cheia corespunz\u0103toare.<\/p>\n<p>Ordinea corect\u0103 este, \u00een general:<\/p>\n<pre>\r\n1. Elimin\u0103 DS Record de la registrar\r\n        \u2193\r\n2. A\u0219teapt\u0103 propagarea modific\u0103rii\r\n        \u2193\r\n3. Dezactiveaz\u0103 \/ elimin\u0103 cheia DNSSEC din zona DNS\r\n<\/pre>\n<p>cPanel recomand\u0103 explicit eliminarea DS-ului de la registrar \u00eenainte de \u0219tergerea cheii DNSSEC.<\/p>\n<h2>Cum verifici dac\u0103 un domeniu are DNSSEC activ?<\/h2>\n<p>Dac\u0103 ai acces la un sistem Linux sau macOS po\u021bi utiliza comanda:<\/p>\n<pre>dig DS exemplu.ro<\/pre>\n<p>Dac\u0103 domeniul are un DS publicat \u00een zona p\u0103rinte, rezultatul poate con\u021bine informa\u021biile Delegation Signer.<\/p>\n<p>Pentru DNSKEY:<\/p>\n<pre>dig DNSKEY exemplu.ro<\/pre>\n<p>Pentru a solicita informa\u021bii DNSSEC:<\/p>\n<pre>dig +dnssec exemplu.ro<\/pre>\n<p>\u00cenlocuie\u0219te:<\/p>\n<pre>exemplu.ro<\/pre>\n<p>cu domeniul pe care dore\u0219ti s\u0103 \u00eel verifici.<\/p>\n<h2>Exemplu de r\u0103spuns DS<\/h2>\n<p>Un rezultat poate avea forma:<\/p>\n<pre>exemplu.ro. 3600 IN DS 12345 13 2 ABCDEF...<\/pre>\n<p>Valorile reprezint\u0103, \u00een ordine:<\/p>\n<pre>\r\n12345 \u2192 Key Tag\r\n13    \u2192 Algorithm\r\n2     \u2192 Digest Type\r\nABC... \u2192 Digest\r\n<\/pre>\n<p>Valorile sunt doar un exemplu \u0219i nu trebuie copiate pentru un domeniu real.<\/p>\n<h2>Ce \u00eenseamn\u0103 DNSSEC Secure, Insecure \u0219i Bogus?<\/h2>\n<p>\u00cen timpul valid\u0103rii po\u021bi \u00eent\u00e2lni mai multe st\u0103ri.<\/p>\n<h3>Secure<\/h3>\n<p>Lan\u021bul DNSSEC a fost validat corect.<\/p>\n<pre>Secure \u2192 semn\u0103turile sunt valide<\/pre>\n<h3>Insecure<\/h3>\n<p>Domeniul nu utilizeaz\u0103 DNSSEC sau nu exist\u0103 un lan\u021b DNSSEC c\u0103tre acesta.<\/p>\n<pre>Insecure \u2192 DNSSEC nu este activ pentru domeniu<\/pre>\n<p>Aceasta nu \u00eenseamn\u0103 automat c\u0103 domeniul este compromis.<\/p>\n<h3>Bogus<\/h3>\n<p>Resolverul se a\u0219tepta la un r\u0103spuns DNSSEC valid, dar verificarea criptografic\u0103 a e\u0219uat.<\/p>\n<pre>Bogus \u2192 configura\u021bie DNSSEC invalid\u0103 sau r\u0103spuns nevalid\r\n<\/pre>\n<p>Aceasta este starea problematic\u0103 \u0219i poate determina resolverul s\u0103 refuze r\u0103spunsul DNS.<\/p>\n<h2>DNSSEC protejeaz\u0103 \u00eempotriva phishing-ului?<\/h2>\n<p>Nu \u00een mod direct.<\/p>\n<p>DNSSEC poate ajuta la prevenirea redirec\u021bion\u0103rii unui domeniu legitim prin falsificarea r\u0103spunsurilor DNS, dar nu poate \u00eempiedica un atacator s\u0103 \u00eenregistreze un domeniu asem\u0103n\u0103tor.<\/p>\n<p>De exemplu, DNSSEC nu poate \u00eempiedica apari\u021bia unui domeniu precum:<\/p>\n<pre>nume-companie-secure.example<\/pre>\n<p>utilizat pentru phishing.<\/p>\n<p>DNSSEC autentific\u0103 r\u0103spunsurile DNS ale domeniului protejat, nu verific\u0103 dac\u0103 website-ul este legitim sau dac\u0103 un alt domeniu este mali\u021bios.<\/p>\n<h2>DNSSEC protejeaz\u0103 \u00eempotriva atacurilor DDoS?<\/h2>\n<p>Nu.<\/p>\n<p>DNSSEC nu este o solu\u021bie de protec\u021bie DDoS.<\/p>\n<p>Rolul s\u0103u principal este verificarea autenticit\u0103\u021bii \u0219i integrit\u0103\u021bii datelor DNS.<\/p>\n<p>Protec\u021bia DDoS necesit\u0103 mecanisme separate la nivelul re\u021belei \u0219i infrastructurii.<\/p>\n<h2>DNSSEC \u00eenlocuie\u0219te certificatul SSL?<\/h2>\n<p>Nu.<\/p>\n<p>DNSSEC \u0219i SSL\/TLS protejeaz\u0103 componente diferite.<\/p>\n<table>\n<thead>\n<tr>\n<th>Tehnologie<\/th>\n<th>Rol<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>DNSSEC<\/strong><\/td>\n<td>Verific\u0103 autenticitatea r\u0103spunsurilor DNS<\/td>\n<\/tr>\n<tr>\n<td><strong>SSL\/TLS<\/strong><\/td>\n<td>Cripteaz\u0103 conexiunea dintre browser \u0219i server<\/td>\n<\/tr>\n<tr>\n<td><strong>DoH \/ DoT<\/strong><\/td>\n<td>Cripteaz\u0103 comunica\u021bia DNS dintre client \u0219i resolver<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Pentru o protec\u021bie c\u00e2t mai bun\u0103, aceste tehnologii pot fi utilizate \u00eempreun\u0103.<\/p>\n<h2>DNSSEC afecteaz\u0103 viteza website-ului?<\/h2>\n<p>DNSSEC adaug\u0103 informa\u021bii suplimentare procesului de rezolu\u021bie DNS \u0219i necesit\u0103 validarea semn\u0103turilor criptografice.<\/p>\n<p>\u00cen practic\u0103, impactul asupra experien\u021bei utilizatorului este de regul\u0103 redus, iar resolverele moderne sunt optimizate pentru astfel de verific\u0103ri.<\/p>\n<p>DNSSEC nu influen\u021beaz\u0103 timpul necesar PHP pentru generarea paginii, performan\u021ba bazei de date sau viteza serverului web.<\/p>\n<h2>DNSSEC modific\u0103 A, MX sau SPF?<\/h2>\n<p>Nu.<\/p>\n<p>Activarea DNSSEC nu schimb\u0103 destina\u021bia website-ului sau serverul de email.<\/p>\n<p>\u00cenregistr\u0103ri precum:<\/p>\n<pre>\r\nA\r\nAAAA\r\nMX\r\nCNAME\r\nTXT\r\nSPF\r\nDKIM\r\nDMARC\r\n<\/pre>\n<p>continu\u0103 s\u0103 func\u021bioneze normal.<\/p>\n<p>DNSSEC adaug\u0103 mecanismul necesar pentru validarea autenticit\u0103\u021bii datelor DNS.<\/p>\n<h2>DNSSEC \u0219i administrarea zonei DNS<\/h2>\n<p>DNSSEC trebuie analizat \u00eempreun\u0103 cu locul \u00een care este administrat\u0103 zona DNS.<\/p>\n<p>Dac\u0103 domeniul utilizeaz\u0103 nameserverele unui provider, cheile DNSSEC trebuie generate \u0219i administrate \u00een infrastructura DNS autoritativ\u0103 respectiv\u0103.<\/p>\n<p>DS Record trebuie apoi configurat prin registrarul domeniului.<\/p>\n<p>Dac\u0103 dore\u0219ti s\u0103 \u00een\u021belegi cum func\u021bioneaz\u0103 administrarea \u00eenregistr\u0103rilor A, CNAME, MX sau TXT, po\u021bi consulta tutorialul nostru despre <a href=\"https:\/\/www.namebox.ro\/documentatie\/administrare-zona-dns\/\"><strong>administrarea zonei DNS<\/strong><\/a>.<\/p>\n<h2>Ce trebuie verificat \u00eenainte de activarea DNSSEC?<\/h2>\n<p>\u00cenainte de activare este recomandat s\u0103 verifici:<\/p>\n<ul>\n<li>unde este administrat\u0103 zona DNS;<\/li>\n<li>dac\u0103 serverele DNS suport\u0103 DNSSEC;<\/li>\n<li>dac\u0103 registrarul permite configurarea DS Record;<\/li>\n<li>dac\u0103 nameserverele domeniului sunt corecte;<\/li>\n<li>dac\u0103 domeniul urmeaz\u0103 s\u0103 fie migrat \u00een perioada imediat urm\u0103toare;<\/li>\n<li>cine va administra rota\u021bia \u0219i modificarea cheilor.<\/li>\n<\/ul>\n<p>DNSSEC trebuie activat numai atunci c\u00e2nd po\u021bi administra at\u00e2t partea de zon\u0103 DNS, c\u00e2t \u0219i DS-ul de la registrar.<\/p>\n<h2>Checklist pentru activarea DNSSEC<\/h2>\n<p>Procesul poate fi rezumat astfel:<\/p>\n<ol>\n<li>verific\u0103 dac\u0103 serverele DNS suport\u0103 DNSSEC;<\/li>\n<li>genereaz\u0103 cheia DNSSEC;<\/li>\n<li>ob\u021bine valorile pentru DS Record;<\/li>\n<li>configureaz\u0103 DS la registrar;<\/li>\n<li>a\u0219teapt\u0103 propagarea;<\/li>\n<li>verific\u0103 DNSKEY \u0219i DS;<\/li>\n<li>testeaz\u0103 lan\u021bul de \u00eencredere;<\/li>\n<li>monitorizeaz\u0103 domeniul dup\u0103 activare.<\/li>\n<\/ol>\n<h2>DNSSEC adaug\u0103 un nivel suplimentar de securitate domeniului<\/h2>\n<p><strong>DNSSEC<\/strong> nu schimb\u0103 modul \u00een care un website este g\u0103zduit, nu cripteaz\u0103 traficul DNS \u0219i nu \u00eenlocuie\u0219te SSL-ul, firewall-ul sau alte solu\u021bii de securitate.<\/p>\n<p>Rolul s\u0103u este foarte specific: s\u0103 permit\u0103 unui resolver s\u0103 verifice criptografic dac\u0103 informa\u021biile DNS primite sunt autentice \u0219i nu au fost modificate.<\/p>\n<p>Acest lucru este realizat prin semn\u0103turi digitale, DNSKEY \u0219i prin <strong>DS Record<\/strong>, care leag\u0103 domeniul de zona sa p\u0103rinte \u0219i construie\u0219te lan\u021bul de \u00eencredere p\u00e2n\u0103 la root.<\/p>\n<p>Configurarea trebuie \u00eens\u0103 f\u0103cut\u0103 cu aten\u021bie. Un DS Record care nu mai corespunde cheii DNSSEC poate determina resolverele care valideaz\u0103 DNSSEC s\u0103 refuze r\u0103spunsurile \u0219i poate face domeniul inaccesibil.<\/p>\n<p>Dac\u0103 domeniul \u0219i serviciile DNS sunt administrate prin NameBox \u0219i dore\u0219ti s\u0103 utilizezi DNSSEC, po\u021bi contacta echipa tehnic\u0103 pentru verificarea configura\u021biei \u0219i a op\u021biunilor disponibile pentru domeniul respectiv.<\/p>\n<p>Pentru administrarea domeniilor .RO, .COM, .EU \u0219i a altor extensii po\u021bi consulta \u0219i pagina de <a href=\"https:\/\/www.namebox.ro\/inregistrare-domenii\/\"><strong>\u00eenregistrare \u0219i administrare domenii NameBox<\/strong><\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DNSSEC adaug\u0103 un nivel suplimentar de securitate sistemului DNS \u0219i permite verificarea autenticit\u0103\u021bii r\u0103spunsurilor primite atunci c\u00e2nd un utilizator \u00eencearc\u0103 s\u0103 acceseze un domeniu. F\u0103r\u0103 DNSSEC, un resolver DNS prime\u0219te informa\u021bii precum adresa IP asociat\u0103 unui domeniu, \u00eens\u0103 protocolul DNS clasic nu a fost proiectat ini\u021bial cu un mecanism criptografic prin care s\u0103 demonstreze c\u0103 &#8230; <a title=\"DNSSEC: Protec\u021bie pentru domeniul t\u0103u\" class=\"read-more\" href=\"https:\/\/www.namebox.ro\/blog\/dnssec-protectie-domeniu\/\" aria-label=\"Cite\u0219te mai multe despre DNSSEC: Protec\u021bie pentru domeniul t\u0103u\">Cite\u0219te mai mult<\/a><\/p>\n","protected":false},"author":8,"featured_media":2430,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-2428","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-domenii"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ 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