Normally ping and other commands to need host name resolving are linked to libc and should follow the order you demanded in /etc/nsswitch.conf and use /etc/hosts and NIS before resolving to dns.. nslookup and dig always consult DNS and never use the entries in /etc/hosts or NIS.. getent hosts will use the C resolver functions, honours nsswitch.conf and will show entries

It means, a comparison of DNS server will be a better starting point before migrating to a different DNS service. If you are using Linux machine, then an open source package called namebench can help you to compare the speeds of various DNS servers. We’ll see how to do that, How to test the speed of various DNS Servers? – DNS Benchmarking linux - How to test that DNS from NIS is working? - Server Normally ping and other commands to need host name resolving are linked to libc and should follow the order you demanded in /etc/nsswitch.conf and use /etc/hosts and NIS before resolving to dns.. nslookup and dig always consult DNS and never use the entries in /etc/hosts or NIS.. getent hosts will use the C resolver functions, honours nsswitch.conf and will show entries DNS Performance - Compare the speed and uptime of "Resolver Simulation" simulates the algorithm of public DNS resolvers and shows the performance from the resolver's point of view "Uptime" shows the real uptime of DNS provider. A provider is marked as down only if all nameservers go down at the same time. (in the …

How to Install and Configure DNS Server in Linux

Change DNS settings on Linux - support.rackspace.com If you find that your server’s Domain Name Server (DNS) settings are misconfigured or you prefer to use your own, this article describes how to change your Linux® server’s DNS settings. If you want to test your site without the test link prior to going live with SSL or verify that an alias site works prior to DNS changes, you can Modify 3 Best DNS Benchmarking Tools To Find the Fastest DNS DNS Jumper. If you are using Windows for any part of the time, you might be familiar or even used …

The DNS system is, in fact, its own network. If one DNS server doesn't know how to translate a particular domain name, it asks another one, and so on, until the correct IP address is returned. There are a number of commands you can use do test the DNS server resolution. The Host Command host is a simple utility for performing DNS lookups.

Dec 06, 2014 Linux for Network Engineers: How to Resolve a Host & Test Oct 31, 2018 How To Use nslookup Command & Dig Command For DNS Check …