May 06, 2012
Jan 24, 2017 How to setup Quad9 DNS on a Linux Nov 17, 2017 How to change DNS settings on Linux - alltechstricks
However, please be aware that (on modern Linuxen) the contents of /etc/nsswitch.conf dictate what name services are used (DNS, LDAP, etc) and in what order. Say fgrep hosts: /etc/nsswitch.conf.If it only references DNS, /etc/resolv.conf is the right place to look for your nameservers. But chances are you're also using mDNS (aka ZeroConf, aka Avahi, aka Bonjour, etc), etc.
How to change DNS ip address in RHEL - nixCraft Jan 03, 2019 How to Configure DNS Settings on Ubuntu & LinuxMint
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