On Ubuntu 16.04 and older versions of Ubuntu, there was a file, /etc/resolv.conf, that was used to configure DNS name servers. Although /etc/resolv.conf still exist on Ubuntu 18.04, it is no longer where you configure your DNS name servers.
May 29, 2016 Ubuntu 18.04 Server - how to check DNS IP server setting Yes, Ubuntu has had an internal listening scheme on port 53 but it is supposed to use the DNS servers issued by DHCP. With the changes it looks like it now creates a new internal loopback IP of 127.0.0.53 as well for another loopback path. Configuring PXE Network Boot Server on Ubuntu 18.04 LTS As you can see, dnsmasq service is running. So, it’s configured correctly. Installing and Configuring NFS Server: Ubuntu 18.04 LTS Desktop uses casper to boot into Live DVD mode. casper supports network boot via NFS only. So, in order to boot Ubuntu 18.04 LTS and any Ubuntu derivatives via PXE, you need to have a fully functional NFS server accessible over the network. DNS with bind9 and DHCP on Ubuntu 16.04 - Beware Here Be The NIC on the DNS server should be setup to look only at localhost, 127.0.0.1. change the the line for dns-nameservers, the interfaces file should now have something like this in it. Remember we used the Google DNS or OpenDNS in the named.conf.local file as our forwarder so your lab-dns-dhcp server will look there if it cannot find an answer
What is My DNS Server? 4 Methods to check DNS Server IP
A fresh Ubuntu 18.04 server to serve as the Primary DNS server, ns1 (Recommended) A second Ubuntu 18.04 server to serve as a Secondary DNS server, ns2 Additional servers in the same datacenter that will be using your DNS servers How To Configure Bind as a Caching or Forwarding DNS Server on Ubuntu 14.04. Bind is an extremely flexible DNS server that can be configured in many different ways. In this guide, we will discuss how to install Bind on an Ubuntu 14.04 server and configure it as either a caching or forwarding DNS server.
Ubuntu (uses resolvconf) Install the dnsmasq package (“sudo apt-get install dnsmasq”). SUSE (uses netconf): DNS servers within a virtual network can forward DNS queries to recursive resolvers of Azure to resolve hostnames that are in the same virtual network. For example, a DNS server that runs in Azure can respond to DNS queries for
Oct 21, 2015 How To Configure BIND as a Private Network DNS Server on Aug 12, 2014 How to Configure DNS Server on Ubuntu & LinuxMint