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Thursday, November 22, 2018

Linux Resolver

The stub resolver in Linux is responsible for initiating and sequencing DNS queries that ultimately lead to a full resolution. A resolver is configured via a configuration file, /etc/resolv.conf. The resolver queries the DNS server listed in the resolv.conf in the order they are listed.




Following is a sample resolv.conf:
options timeout:1
nameserver 10.0.0.10
nameserver 10.0.1.10