nameservers HowTo - Linux / Unix Q & A from nixCraft

Linux Make Sure /etc/resolv.conf Never Get Updated By DHCP Client

last updated October 11, 2018 in BASH Shell, CentOS, Debian / Ubuntu, Fedora Linux, FreeBSD, Linux, Networking, RedHat and Friends, Ubuntu Linux

I am using GNU/Linux with the Internet Systems Consortium DHCP Client. The dhclient, provides a means for configuring one or more network interfaces using the Dynamic Host Configuration Protocol. It also updates my /etc/resolv.conf file each time my laptop connects to the different network. I would like to keep my existing nameservers. How do I skip /etc/resolv.conf update on a Linux based system? How do I stop DHCP client from changing resolv.conf on Linux?

How Do I Update The Root Hints Data File for BIND Named Server?

last updated July 1, 2008 in Bind dns, CentOS, Debian / Ubuntu, FreeBSD, Linux, Networking, Solaris-Unix, Suse, Troubleshooting, Ubuntu Linux, UNIX

My local nameserver root zone file is outdated. It has no information about IPv6 and recently changed root server IP address. How do I update my root hints data file under Debian and Red Hat Bind 9 server?