Sep 26, 2017 · Nameserver is the DNS server to which your machine query for name resolutions. This is pretty much important on servers facing the Internet or having an active internet connection or if your system is part of an organization where the internal domain name system is implemented for IT Infra. Jun 21, 2019 · How to install and configure a DNS server on RHEL 8 / CentOS 8 in caching mode only or as single DNS Server; which new command to use instead of yum;an example of configuration; how to check the DNS configuration is correct. For DNS resolution to succeed to 192.168.0.1, the DNS server at 192.168.0.1 will need to accept TCP and UDP traffic over port 53 from our server. A port scanner such as the nmap tool can be used to confirm if the DNS server is available on port 53 as shown below. Note: To install nmap run ‘yum install nmap -y’.
Nov 03, 2019
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The DNS configuration in Debian. First we will look at the file /etc/resolv.conf. This is the main configuration file library name resolver DNS. The resolver is a library in the language C, it provides access to DNS for programs in the system. Its functions are configured to the following:
Under Options, select the Show command check box.; Under Nameservers, select the server that you want to use for the DNS query.You can use the default name server, or select a specific DNS server, like OpenDNS or Google. Click Dig.The page displays the results from dig, … A.6. Troubleshooting DNS Red Hat Enterprise Linux 7 | Red