If you use a DHCP client in untrusted networks, be sure to set static name servers to avoid using and being subject to arbitrary DNS servers. To secure your communication with a remote DNS server you can use an encrypted protocol, like DNS over TLS ( RFC 7858 ), DNS over HTTPS ( RFC 8484 ), or DNSCrypt , provided that both the upstream server
How do I configure my static DNS in interfaces? - Ask Ubuntu Check your resolvconf(8) man page for usage and options. On Ubuntu 16.04.3 LTS it says you either use one or more dns-nameserver lines with a single IP address per line, or you can use dns-nameservers and a space separated list of IP addresses. – jla Oct 19 '17 at 3:57 How to configure nameserver in Linux - Kernel Talks Sep 26, 2017 Install, Configure, and Maintain Linux DNS Server - Like Geeks Mar 17, 2017
To use a proxy on the Linux command-line, you can set the environment variables http_proxy, https_proxy or ftp_proxy, depending on the traffic type.. These proxy server settings are used by the almost all Linux command-line utilities, e.g. ftp, wget, curl, ssh, apt-get, yum and others. If you don’t know yet which proxy server to use, you can take one from the lists of the free public proxy
Install, Configure, and Maintain Linux DNS Server - Like Geeks Mar 17, 2017 How to set up DNS via command line? - LinuxQuestions.org
Linux DNS set up | Linux.org
Set Name When called with one argument or with the --file option, the commands set the host name, the NIS/YP domain name or the node name. Note, that only the super-user can change the names. It is not possible to set the FQDN or the DNS domain name with the …