Click the DNS tab. The DNS configuration settings appear. Enter the IP addresses for the DNS servers that you want to use. If your network runs its own DNS server, you can specify its address here. Otherwise, you have to get the DNS server addresses from your ISP. Choose File→Save. Any changes that you’ve made to the network configuration
Newer versions of the Linux kernel use the /etc/nsswitch.conf file to determine what takes precedence: a local configuration file, a service such as DNS (Domain Name System), or NIS. As an example, the following hosts entry in the /etc/nsswitch.conf file says that the resolver library first tries the /etc/hosts file, then tries NIS+, and In order to configure dnsmasq as a DNS server, you have to modify this file. The default /etc/dnsmasq.conf file contains a lot of documentation and commented out options. So, I think it’s better to rename the /etc/dnsmasq.conf file to /etc/dnsmasq.conf.bk and create a new one. You can rename the configuration file with the following command: Dec 04, 2017 · Setting up a secondary DNS server is always a good idea as it will serve as a failover and will respond to queries if the primary server is unresponsive. On ns2, edit the named.conf.options file: # sudo nano /etc/bind/named.conf.options. At the top of the file, add the ACL with the private IP addresses for all your trusted servers: You add your custom DNS databases in the /var/named/ directory. Once the DNS databased are created, you add your custom zone files in the /etc/named/ directory and include the zone files in the /etc/named.conf configuration file. That’s basically how you configure BIND 9 DNS server. Let’s create a DNS database for linuxhint.local domain name. Now edit the name server configuration file as follows. [[email protected] ~]# vi /etc/named.conf. In that file add primary DNS server IP in listen on port 53 option. Enter IP range of hosts in the allow-query option. Add secondary DNS server IP in allow-transfer option. Configure the named.conf file by adding the following line in it. Unfortunately this uses a different configuration file that does not allow one to specify a DNS suffix. ps -ef | grep -i [d]hcp root 720 1 0 10:16 ? 00:00:00 /sbin/dhcpcd -q -w Fortunately this system came installed with resolvconf, which does have a configuration file /etc/resolvconf.conf that permits the specification of a DNS suffix:
Mar 17, 2017 · The DNS (Domain Name System) is a naming system for computers, the service that does that is the DNS server which translates an IP address to a human-readable address. This process is the backbone of the internet and a very important service in your server, so from that point, we will discuss DNS server or specifically Linux DNS server and how
Configuration of DNS services under Linux involves the following steps: To enable DNS services, the `` /etc/host.conf '' file should look like this: # Lookup names via /etc/hosts first, then by DNS query order hosts, bind # We don't have machines with multiple addresses multi on # Check for IP address spoofing nospoof on # Warn us if someone
DNS Configuration and Data Files. In addition to the in.named daemon, DNS on a name server consists of a configuration file called named.conf, a resolver file named resolv.conf, and four types of zone data files. Names of DNS Data Files. So long as you are internally consistent, you can name the zone data files anything you want.
Aug 20, 2018 · First, let's briefly describe our environment and proposed scenario. We will be setting up a DNS server to host a single zone file for domain linuxconfig.org. Our DNS server will act as a master authority for this domain and will resolve fully qualified domain (FQDN) linuxconfig.org and www.linuxconfig.org to an IP address 1.1.1.1. Click the DNS tab. The DNS configuration settings appear. Enter the IP addresses for the DNS servers that you want to use. If your network runs its own DNS server, you can specify its address here. Otherwise, you have to get the DNS server addresses from your ISP. Choose File→Save. Any changes that you’ve made to the network configuration Feb 18, 2014 · This is either configured at the top of the zone file or it can be defined in the DNS server’s configuration file that references the zone file. Either way, this parameter describes what the zone is going to be authoritative for.