Hub pillar DIG
Guias de consultas DIG
Tutoriais DIG online: MX, TXT, NS, A/AAAA, CAA, TTL, dig vs nslookup e consultas de um único tipo de registro.
DIG online — consulta DNS sem terminal
Use uma ferramenta DIG online para A, MX, NS, TXT e outros tipos quando dig no terminal não está disponível. Compare com a visão completa do DNS Checker.
Consulta DIG NS — encontrar nameservers autoritativos
Como verificar registros NS com DIG, glue de delegação, NS do registrador desalinhados e corrigir DNS após mudanças de hospedagem.
DIG vs nslookup — qual ferramenta DNS usar
Compare dig e nslookup para diagnóstico DNS, seções de saída, scripting e quando uma ferramenta DIG online basta.
Solução de problemas MX com DIG
Use DIG tipo MX para depurar roteamento, prioridades e exchangers obsoletos.
Validar SPF com consultas DIG TXT
Confirme strings SPF com DIG TXT antes de falhas de autenticação.
DIG A and AAAA Lookups for Hosting Cutover
Use DIG type A and AAAA to verify hosting migrations before and after TTL expiry.
DIG CAA Queries Before Certificate Issuance
Check CAA records with DIG before your CA rejects issuance or a restrictive policy blocks renewal.
Monitor Zone Changes with DIG SOA Serial
Track SOA serial increments after DNS edits to confirm authoritative zones updated.
DIG PTR and Reverse DNS Lookups
Validate PTR records for mail egress IPs and reverse DNS mismatches with focused DIG queries.
DIG SRV Record Lookups Explained
Query SRV records for SIP, XMPP, LDAP and other service discovery workflows with online DIG.
DIG TTL Answers and Resolver Cache Behavior
Read TTL values in DIG output to estimate cache lifetime and plan re-check windows after DNS changes.
Troubleshoot NXDOMAIN and SERVFAIL with DIG
Interpret DIG status codes when names fail to resolve or authoritative DNS returns errors.
Query Authoritative Nameservers with DIG
When recursive caches lie, use DIG against authoritative NS to see the zone file seconds after Save.