How do I find out my DNS server IP address assiged my my ISP under Unix or Linux operating system using command prompt? How do I find preferred dns server under Debian / Ubuntu / Fedora Linux desktop system?
Under Unix or Linux operating systems the resolver is used (set of routines in the C library) that provide access to the Internet Domain Name System (DNS). The resolver configuration file is located at /etc/resolv.conf location and it contains information that is read by the resolver routines the first time they are invoked by a process. Use the cat command or grep command to find out your dns server addresses as follows:
