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How to change the DNS server orders in a DNS client machine (Doc ID 1516015.1)

Last updated on APRIL 22, 2020

Applies to:

Linux OS - Version Oracle Linux 4.4 and later
Oracle Cloud Infrastructure - Version N/A and later
Linux x86-64
Applies to any kernel Version.


There are situations when the primary DNS server (first server entry found in resolv.conf) mentioned in /etc/resolv.conf of the client DNS machine, is down and the client is still trying to communicate through the primary server.  In such a situation you can quickly reorder the DNS server list to avoid DNS lookup delays.

The steps mentioned in this document just does the same by simple manual reordering. For more details on resolv.conf you may refer to '$ man resolv.conf'.


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