We would like to share about how does DNS work for help you simple to understand about DNS

Step by step, Please find step DNS process on diagram below,

How does DNS work
  1. Client sent request domain www.cloud-ttrust.com to local DNS (Internet modem)
  2. Internet modem sent request ask about domain cloud-ttrust.com to LDNS (Service Provider)
  3. LDNS (Service Provider) work with DNS Resolver sent request ask about domain cloud-ttrust.com to DNS root name server (In case this’s first request about domain cloud-ttrust.com, It still not have any DNS cache for this domain)
  4. Root name server response about name server (Next ask question) to LDNS (Service Provider) for this scenario, it response name server .com to LDNS (Service Provider)
  5. LDNS (Service Provider) sent request ask about domain cloud-ttrust.com to .com server
  6. com server response about name server (Next ask question) to LDNS (Service Provider) for this scenario, it response name server authoritative zone for clound-ttrust.com to LDNS (Service Provider)
  7. LDNS (Service Provider) ent request ask about domain cloud-ttrust.com to authoritative zone for clound-ttrust.com
  8. Authoritative zone for clound-ttrust.com response DNS record (IP Address) to LDNS (Service Provider)
  9. LDNS (Service Provider) reponse DNS record (IP Address) to internet modem
  10. Internet modem response DNS record (IP Address) to client
  11. Client sent request IP address direct to destination server with backend process, On browser still show about domain cloud-ttrust.com
  12. Web server response content to client

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