The Linux host command can retrieve a lot of useful information from the domain name service, but has a lot of options that you need to understand to get started. The host command on Linux systems can ...

The most important networking command in Linux might be ping. This command lets you check if a remote machine is responding to your requests. You can use ping to check if your internet connection is ...

In the first part of this article [LJ, January 2008], we started the apparently simple journey of navigating our way to the IP address of www.example.com and its secure server online.example.com by ...

The domain name system (DNS) hums along behind the scenes and, as with running water, we largely take it for granted. That this system just works is a testament to the hackers who designed and ...

I need someone to either confirm that my understanding is correct or help me get the right answer. As I understand it, if I use dig to do a NS query against a domain, or sub-domain, I should get back ...