IP address of Your Domain Name Server(DNS) Open your terminal & execute the following sudo cp db.local sudo vi We need to install ‘bind9 bind9utils bind9-doc dnsutils’ to install BIND 9 & related tools. Installation of Bind 9 on Debian / Ubuntu System: So let’s start the tutorial with the installation on packages for BIND 9…. In this tutorial i will be using followings: BIND is by far the most used DNS software on Internet. BIND stands Berkeley Internet Name Domain & it allows us to publish DNS information on internet as well as allows us to resolve DNS queries for the users. In this tutorial, we are going to learn to setup a private DNS server by implementing BIND9 on Ubuntu/Debian system.īIND or BIND 9 is an open source implementation of DNS, available for almost all Linux distributions. from IP addresses to domain name translations. Not only can we translate domain names to IP addresses, we can also perform reverse translation i.e. Sudo named-checkzone /etc/bind/zones/db.192.DNS or Domain Name System, as we know is an internet service that is used to translate the user friendly domain into computer friendly IP addresses. Sudo named-checkzone /etc/bind/zones/db. You should be able to lookup the hostname by itself as well as using the FQDN.ĭo the same test with the nslookup command.ĭo a reverse lookup using the host command, the nslookup command, and the dig command.Īnytime you update the config files run this command to validate:Īnytime you update a zone file make sure you: Verify that your DNS servers and domain are visible here:ĭo a forward lookup using the host command. Sudo ifdown -force eth0 & sudo ip addr flush dev eth0 & sudo ifup -force eth0 Restart networking ( swap eth0 for the correct device on your system ). If you don’t have them installed for whatever reason you can use the following command.ĭns-nameservers 192.168.3.3 192.168.3.4 8.8.8.8 You should have nslookup and dig by default on the server version of Ubuntu and probably on the client version as well. Sudo ln -s /run/systemd/resolve/nf /etc/nf We can work around this by removing the first file and replacing it with a link to the second like this. The file /run/systemd/resolve/nf is updated sucessfully though. The file /etc/nf is meant to be automatically updated by man:systemd-resolved. There is a known issue with systemd see HERE. Verify if the DNS configuration has been applied. Tell Netplan to attempt to load the configuration: Sudo nano /etc/netplan/00-private-nameservers.yaml
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February 2023
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