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What is default time to cache DNS data?

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Question ajoutée par Utilisateur supprimé
Date de publication: 2016/04/08
Muhammad Saleem
par Muhammad Saleem , Pacific Pharmaceuticals Limited

default cache time for DNS is 60 min 

Utilisateur supprimé
par Utilisateur supprimé

  • A specified DNS domain name, stated as a fully qualified domain name (FQDN)
  • A specified query type, which can either specify a resource record by type or a specialized type of query operation
  • A specified class for the DNS domain name. 

 

Niyas Moothedath Purackal
par Niyas Moothedath Purackal , Sr Engineer UC&Collaboration , Cisco Systems

default TTL for DNS records is 60 minutes. You can modify the TTL of the record in the DNS Management console

Muhannad AlHaj Issa
par Muhannad AlHaj Issa , Group IT Manager , Jordanian For Investment & Transportation

TTL is set to be 3600 s as default  . This period of time can be changed as needed.

Whether or not a DNS query cached is based on the response from the respective DNS server(s):

If DNS responds that the query is non-cacheable, the cache time-to-live (TTL) is set to 0.

If DNS responds that the query is cacheable, the cache TTL is set to a value in seconds.

Jaheer Basheer
par Jaheer Basheer , IT Manager , Mudaihish Steel Factory

Default time to cache DNS data is depend upon TTL (Time to Live) of the data

Rawad Nasser
par Rawad Nasser , Senior IT Engineer , Abu Dhabi Ports

This Depends on TTL of the records

Your DNS cache stores the locations (IP addresses) of web servers that contain web pages which you have recently viewed. If the location of the web server changes before the entry in your DNS cache updates, you can no longer access the site.

ahmed hassan ahmed abdelgayed
par ahmed hassan ahmed abdelgayed , Senior Security Implementation Engineer , Du telecom company

The DNS cache doesn't ever flush, unless you explicitly tell it to or you make a DNS/networking related configuration change. DNS records have a Time To Live (TTL) value associated with them which tells a DNS cache how long the particular record is good for. Records in the cache are kept for their TTL, then re-queried.

On a Windows machine you can see a list of all the records in your cache along with their TTL by executing the following command at the command prompt:

ipconfig /displaydns

You can force a flush of all cached DNS records using the following command:

ipconfig /flushdns

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