DNS Resolution (glibc resolver)

DNS resolution in Linux uses /etc/resolv.conf, NSS modules, and caching resolvers.

Show resolver configuration

Input:

cat /etc/resolv.conf

Output:

nameserver 1.1.1.1

Shows system resolver addresses.

References:

• https://man7.org/linux/man-pages/man5/resolv.conf.5.html

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