Aug 21, 2019
Service - Domain Name Service (DNS) | Server documentation In this way, DNS alleviates the need to remember IP addresses. Computers that run DNS are called name servers. Ubuntu ships with BIND (Berkley Internet Naming Daemon), the most common program used for maintaining a name server on Linux. Installation. At a terminal prompt, enter the following command to install dns: sudo apt install bind9 How to Set DNS Nameservers on Ubuntu 18.04 - Linux Aug 21, 2019
Jul 25, 2012
networking - What DNS servers am I using? - Unix & Linux to get the first DNS SERVER (IP only) : cat /etc/resolv.conf |grep -i '^nameserver'|head -n1|cut -d ' ' -f2 cat will output DNS config; grep filters only nameserver; head will keep only the first row/instance; cut take the ip part of the row (second column with ' ' as separator) To put DNS ip in an environment variable, you could use as follow:
Mar 17, 2017
How to Resolve a Host and Test DNS Servers