If the host is a name server, the resolv.conf file must exist and contain a nameserver reference to itself as well as a default domain.. The resolv.conf file can contain one domain entry or one search entry, a maximum of three nameserver entries, and any number of options entries.. A domain entry tells the resolver routines which default domain name to append to names that do not end with a .

How to configure 'resolv.conf' in Ubuntu permanently? When There are 3 ways you can do this: 1. The most elegant solution is to use DHCP and setup the DHCP server to send you whatever DNS server you want. 2. Use network-manager, System -> Preferences -> Network connections - click no network interface, Change DNS settings on Linux - support.rackspace.com In some cases, /etc/resolv.conf could be a directly managed file, populated by the network service (network by using initscripts or NetworkManager). To directly edit the configuration file, use the following steps to add the DNS servers: Open the resolv.conf file with an editor, such as nano, to make the necessary changes. If the file doesn’t How to install DNS server on RHEL 8 / CentOS 8 Linux Jun 21, 2019

Here is an exhaustive list of setups to get back the control of resolv.conf and avoid having it overwritten (how to disable/setup DNS from other location other than resolv.conf) note that resolvconf is an independent program from resolv.conf, also depending on your system/config you may not have one or many of the programs listed here. 1

Aug 20, 2018 [SOLVED] resolv.conf - how to reload? Jan 15, 2018 How to make persistent changes to the /etc/resolv.conf

Change DNS settings on Linux - support.rackspace.com

For some systems, on some networks, the system administrator may wish to configure /etc/resolv.conf by hand. This leads to a conflict between the administrator's changes, and the dynamic changes performed by the network service daemons. If you edit resolv.conf by hand, How do I add a DNS server via resolv.conf? - Ask Ubuntu